- Micelle-like molecular capsules with anthracene shells as photoactive hosts
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Aromatic micelles: Hydrophobic and aromatic-aromatic interactions promoted the spontaneous formation of micelle-inspired molecular capsules with large aromatic shells from bent bisanthracene amphiphiles (see picture). The micellar capsules could accommoda
- Kondo, Kei,Suzuki, Akira,Akita, Munetaka,Yoshizawa, Michito
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Read Online
- Nitrogen-containing compound, electronic element, and electronic device
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The invention provides a nitrogen-containing compound shown as a formula I, an electronic element and an electronic device, and belongs to the technical field of organic materials. The nitrogen-containing compound can improve the performance of the electr
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Paragraph 0166-0167
(2021/01/24)
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- About the selectivity and reactivity of active nickel electrodes in C-C coupling reactions
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Active anodes which are operating in highly stable protic media such as 1,1,1,3,3,3-hexafluoroisopropanol are rare. Nickel forms, within this unique solvent, a non-sacrificial active anode at constant current conditions, which is superior to the reported powerful molybdenum system. The reactivity for dehydrogenative coupling reactions of this novel active anode increases when the electrolyte is not stirred during electrolysis. Besides the aryl-aryl coupling, a dehydrogenative arylation reaction of benzylic nitriles was found while stirring the mixture providing quick access to synthetically useful building blocks.
- Beil, Sebastian B.,Bomm, Alexander,Breiner, Manuel,Holtkamp, Michael,Karst, Uwe,Müller, Timo,Schüll, Aaron,Schade, Wolfgang,Schollmeyer, Dieter,Schulz, Lara,Waldvogel, Siegfried R.
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p. 14249 - 14253
(2020/04/23)
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- Compound
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PROBLEM TO BE SOLVED: To provide a compound capable of forming a color filter excellent in heat resistance. SOLUTION: The present invention provides a compound represented by formula (I). [In formula (I), R1-R8 independently represen
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Paragraph 0257-0259
(2020/05/02)
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- Organic semiconductor photocatalyst can bifunctionalize arenes and heteroarenes
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Photoexcited electron-hole pairs on a semiconductor surface can engage in redox reactions with two different substrates. Similar to conventional electrosynthesis, the primary redox intermediates afford only separate oxidized and reduced products or, more rarely, combine to one addition product. Here, we report that a stable organic semiconductor material, mesoporous graphitic carbon nitride (mpg-CN), can act as a visible-light photoredox catalyst to orchestrate oxidative and reductive interfacial electron transfers to two different substrates in a two- or three-component system for direct twofold carbon–hydrogen functionalization of arenes and heteroarenes. The mpg-CN catalyst tolerates reactive radicals and strong nucleophiles, is straightforwardly recoverable by simple centrifugation of reaction mixtures, and is reusable for at least four catalytic transformations with conserved activity.
- Ghosh, Indrajit,Khamrai, Jagadish,Savateev, Aleksandr,Shlapakov, Nikita,Antonietti, Markus,K?nig, Burkhard
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p. 360 - 366
(2019/08/15)
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- Aromatic Halogenation Using N-Halosuccinimide and PhSSiMe3 or PhSSPh
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We developed a mild aromatic halogenation reaction using a combination of N-halosuccinimide and PhSSiMe3 or PhSSPh. Less reactive aromatic compounds, such as methyl 4-methoxybenzoate, were brominated with PhSSiMe3 or PhSSPh and N-bromosuccinimide in high yields. No reaction was observed in the absence of PhSSiMe3 or PhSSPh. This method is also applicable to chlorination reactions using N-chlorosuccinimide and PhSSPh.
- Hirose, Yuuka,Yamazaki, Mirai,Nogata, Misa,Nakamura, Akira,Maegawa, Tomohiro
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p. 7405 - 7410
(2019/06/14)
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- Copper(II) complexes of a heterotopic N-heterocyclic carbene ligand: Preparation and catalytic application
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Copper complexes containing a N-heterocylic carbene (NHC)/amidate/pyridine tridentate, 3-mesityl-1-(2-oxo-2-[{pyridin-2-ylmethyl}amino]ethyl)-imidazolin-2-ylidene (HL), were synthesized and characterized. By X-ray single crystal analysis, both Cu(L)(OAc) (3a) and Cu(L)Br (3b) show that the metal center is coordinated by a CNN-tridentate and a anionic donor in a slightly distorted square-planar geometry. These copper complexes are active as catalysts for oxidative bromination of dimethoxybenzene and styrene with the use of LiBr as the bromine source and oxygen as the terminal oxidant.
- Aaron Lin, Shih-Chieh,Liu, Yi-Hung,Peng, Shie-Ming,Liu, Shiuh-Tzung
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- Photocatalytic Oxidative Bromination of Electron-Rich Arenes and Heteroarenes by Anthraquinone
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The estimated excited oxidation potential of sodium anthraquinone-2-sulfonate (SAS) increases from 1.8 V to about 2.3 V vs SCE by protonation with Br?nsted acids. This increased photooxidation power of protonated anthraquinone was used for the regio-selective oxidative bromination of electron rich (hetero)arenes and drugs in good yield. The mild reaction conditions are compatible with many functional groups, such as double and triple bonds, ketones, amides and amines, hydroxyl groups, carboxylic acids and carbamates. Mechanistic investigations indicate the photooxidation of the arene followed by nucleophilic bromide addition as the likely pathway. (Figure presented.).
- Petzold, Daniel,K?nig, Burkhard
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supporting information
p. 626 - 630
(2017/11/22)
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- Heterocyclic compound, light-emitting element, light-emitting device, electronic device, and lighting device
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A novel heterocyclic compound is provided. In particular, a novel heterocyclic compound which can improve the element characteristics of the light-emitting element is provided. The heterocyclic compound is represented by a general formula (G1) [in-line-fo
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Page/Page column 126; 127
(2018/06/26)
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- Looking for the Origin of Allosteric Cooperativity in Metallopolymers
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The basic concept of allosteric cooperativity used in biology, chemistry and physics states that any change in the intermolecular host-guest interactions operating in multisite receptors can be assigned to intersite interactions. Using lanthanide metals as guests and linear multi-tridentate linear oligomers of variable lengths and geometries as hosts, this work shows that the quantitative modeling of metal loadings requires the consideration of a novel phenomenon originating from solvation processes. It stepwise modulates the intrinsic affinity of each isolated site in multisite receptors, and this without resorting to allosteric cooperativity. An easy-to-handle additive model predicts a negative power law dependence of the intrinsic affinity on the length of the linear metallopolymer. Applied to lanthanidopolymers, the latter common analysis overestimates cooperativity factors by more than two orders of magnitude.
- Babel, Lucille,Hoang, Thi Nhu Y,Guénée, Laure,Besnard, Céline,Wesolowski, Tomasz A.,Humbert-Droz, Marie,Piguet, Claude
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supporting information
p. 8113 - 8123
(2016/06/13)
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- 2,4 and 2,5-bis(benzooxazol-2′-yl)hydroquinone (DHBO) and their borate complexes: Synthesis and optical properties
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This article describes the multistep synthesis and the solution/solid-state optical properties of a series of highly fluorescent dyes based on either a 2,4 or a 2,5-bis(benzooxazol-2′-yl)hydroquinone (DHBO) scaffold. Their fluorescence emission stems from
- Benelhadj, Karima,Massue, Julien,Ulrich, Gilles
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supporting information
p. 5877 - 5884
(2016/07/19)
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- Effective bromo and chloro peroxidation catalysed by tungsten(vi) amino triphenolate complexes
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Amino triphenolate tungsten(vi) complexes have been prepared and they proved to be efficient catalysts in haloperoxidation reactions using hydrogen peroxide as a terminal oxidant and inorganic sources of halides. In particular, interesting results have been obtained in the challenging chloroperoxidation reactivity (catalyst loading down to 0.05% with TONs up to 900). A comparison among three different metal complexes bearing the same ligand (vanadium(v), molybdenum(vi) and tungsten(vi)) showed much better performances of the last complex both on bromo and chloro peroxidations.
- Badetti, Elena,Romano, Francesco,Marchiò, Luciano,Ta?kesenlio?lu, Sara,Da?tan, Arif,Zonta, Cristiano,Licini, Giulia
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p. 14603 - 14608
(2016/09/28)
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- Aerobic photooxidative bromination of aromatic compounds using carbon tetrabromide mediated by anthraquinone-2-carboxylic acid
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We developed the aerobic photooxidative bromination of aromatic compounds using carbon tetrabromide in the presence of anthraquinone-2-carboxylic acid under visible light irradiation.
- Tanaka, Masanori,Kamito, Yuji,Lei, Cui,Tada, Norihiro,Itoh, Akichika
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p. 5886 - 5888
(2015/11/02)
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- Brominations with Pr4NBr9 as a solid reagent with high reactivity and selectivity
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Tetrapropylammonium nonabromide (Pr4NBr9) is introduced as a room-temperature solid reagent for rapid bromination reactions of various substrates. The reagent exhibits reactivity similar to that of elemental bromine, but shows higher selectivity and it is easier and safer to store and to handle. Georg Thieme Verlag Stuttgart · New York.
- Beck, Thorsten M.,Haller, Heike,Streuff, Jan,Riedel, Sebastian
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p. 740 - 747
(2014/04/03)
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- Liquid crystalline bis(N-salicylideneaniline)s: Synthesis and thermal behavior of constitutional isomers
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The first examples of mesogenic bis(N-salicylideneaniline)s (BSANs), wherein two lipophilic (half-disk shaped) entities are interlinked through the dihydroxydiformylbenzene core, were synthesized and characterized. In particular, three constitutional (positional) isomeric BSANs were prepared by the facile twofold condensation of 3,4,5-tris(alkoxy)anilines with 2,3-dihydroxyterephthalaldehyde, 4,6-dihydroxyisophthalaldehyde, and 2,5-dihydroxyterephthalaldehyde and their structures were established by elemental analyses, FT-IR, 1H NMR, and 13C NMR. Proton NMR experiments demonstrated their existence in enol-imine (OH) form solely. Polarizing optical microscopic, differential scanning calorimetric, and powder X-ray diffraction studies evidenced the occurrence of columnar mesomorphism in two sets of isomers.
- Hiremath, Uma S.
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p. 3419 - 3423
(2013/07/04)
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- Metal and H2O2 free aerobic oxidative aromatic halogenation with [RNH3+] [NO3-]/HX and [BMIM(SO3H)][NO3)x(X)y] (X = Br, Cl) as multifunctional ionic liquids
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Novel multifunctional ionic liquids (ILs) are generated by addition of HBr or HCl to alkylammonium nitrates ([RNH3+] [NO 3-]) and to 3-methyl-1-(butyl-4-sulfonyl)imidazolium nitrate ([BMIM(SO3H)][NO3]). The resulting [RNH 3+] [NO3-]/HX and mono (3-methyl-1-(butyl-4-sulfonyl)imidazolium) monohalogenide mononitrate ([BMIM(SO3H)][NO3)x(X)y] (X = Br, Cl)) systems act as solvent and promoter for aerobic oxidative halogenation of arenes under mild conditions in high yields that can be repeated over several cycles.
- Prebil, Rok,Laali, Kenneth K.,Stavber, Stojan
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supporting information
p. 2108 - 2111
(2013/06/05)
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- OXYGENATED FUSED RING DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT CONTAINING THE SAME
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An oxygen-containing fused ring derivative represented by the following formula (1) wherein Ar1 is an m-valent fused ring group in which four or more rings including one or more rings selected from a furan ring and a pyran ring are fused and HAr is any of the nitrogen-containing heterocyclic group represented by the following formulas (2) to (5):
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Paragraph 0063; 0064
(2013/10/21)
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- Self-assembly and characterization of 3D metallamacrocycles: A study of supramolecular constitutional isomers
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We report the self-assembly and isolation of two metallamacromolecular constitutional isomeric pairs based on II-tpy> connectivity. Utilizing a robust II-tpy> dimer with varying substitution to the core benzene ring resu
- Schultz, Anthony,Li, Xiaopeng,Moorefield, Charles N.,Wesdemiotis, Chrys,Newkome, George R.
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supporting information
p. 2492 - 2497
(2013/07/11)
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- Bronsted acidic ionic liquid accelerated halogenation of organic compounds with N-halosuccinimides (NXS)
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The Bronsted-Acidic ionic liquid 1-methyl-3-(4-sulfobutyl) imidazolium triflate [BMIM(SO3H)][OTf] was demonstrated to act efficiently as solvent and catalyst for the halogenation of activated organic compounds with N-halosuccinimides (NXS) under mild conditions with short reaction times. Methyl aryl ketones were converted into a-halo and a,a-dihaloketones, depending on the quantity of NXS used. Ketones with activated aromatic rings were selectively halogenated, however in some cases mixtures of a-halogenated ketone and ring-halogenated ketones were obtained. Activated aromatics were regioselectively ring halogenated to give mono- and dihalo-substituted products. The [BMIM(SO3H)][OTf] ionic liquid (IL-A) was successfully reused eight times in a representative monohalogenation reaction with no noticeable decrease in efficiency. An effective halogenation scale-up in this IL is also presented. The reactivity trend and the observed chemo- and regioselectiivities point to an ET process in these IL-promoted halofunctionalization reactions.
- Vrazic, Dejan,Jereb, Marjan,Laali, Kenneth K.,Stavber, Stojan
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- Pd(II)-catalyzed bromo- and chlorodecarboxylation of electron-rich arenecarboxylic acids
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A bromo- and chlorodecarboxylation of various aromatic carboxylic acids catalyzed by Pd(II) has been developed in this work. A series of electron-rich arenecarboxylic acids gave the corresponding decarboxylative monohalogenation products under the typical reaction conditions.
- Peng, Xuefeng,Shao, Xiang-Feng,Liu, Zhong-Quan
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supporting information
p. 3079 - 3081
(2013/07/11)
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- Synthesis and properties of bimetallic Hoveyda-Grubbs metathesis catalysts
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The catalytic activity of ruthenium Hoveyda-Grubbs complexes in olefin metathesis is a function of complex steric and electronic effects acting on initiation and propagation steps. In order to study the π-electron factors influencing the initiation process, we attempted syntheses of bimetallic complexes with common organic ligands bearing two chelate rings. While most of the studied ligand exchange reactions of the isomeric bis-chelating benzene derivatives gave mixtures of unstable complexes, a homodinuclear derivative of 1,4-dimethoxy-2,5-divinylbenzene was sparingly soluble and precipitated from the reaction mixture in a pure form. The complex was studied with spectroscopic and X-ray methods, which confirmed the symmetrical bimetallic structure. However, in model metathesis reactions the catalyst displayed activity very comparable to the related monometallic complexes. This suggests that in the bimetallic system two consecutive initiation processes of the metathesis catalyst (first, bimetallic complex + olefin → monometallic complex + propagating species; second, monometallic complex + olefin → styrene + propagating species) proceed at similar rates and, thus, no cooperativity between the two steps is displayed. Properties of the family of bimetallic complexes were probed with NMR studies, and π-electronic effects operating in the systems were discussed.
- Grudzien, Krzysztof,Malinska, Maura,Barbasiewicz, Michal
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scheme or table
p. 3636 - 3646
(2012/07/13)
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- Practical synthesis of aromatic nitriles via gallium-catalysed electrophilic cyanation of aromatic C-H bonds
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A gallium-catalysed, direct cyanation reaction of aromatic and heteroaromatic C-H bonds with cyanogen bromide was developed as a practical synthetic method for the preparation of aromatic nitriles. The Royal Society of Chemistry 2012.
- Okamoto, Kazuhiro,Watanabe, Masahito,Murai, Masahito,Hatano, Ryo,Ohe, Kouichi
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supporting information; scheme or table
p. 3127 - 3129
(2012/04/23)
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- An M2L4 molecular capsule with an anthracene shell: Encapsulation of large guests up to 1nm
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A new M2L4 molecular capsule with an aromatic shell was prepared using two Pd(II) ions and four bisanthracene ligands. The self-assembled capsule possesses a cavity with a diameter of ~1 nm that can encapsulate medium-sized spherical and planar molecules as well as a very large molecule (C60) in quantitative yields. The encapsulated guests are fully segregated and shielded from the external environment by the large anthracene panels.
- Kishi, Norifumi,Li, Zhiou,Yoza, Kenji,Akita, Munetaka,Yoshizawa, Michito
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supporting information; experimental part
p. 11438 - 11441
(2011/10/04)
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- Regioselective copper-catalyzed chlorination and bromination of arenes with O2 as the oxidant
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Electron-rich aromatic C-H bonds undergo regioselective chlorination and bromination in the presence of CuX2, LiX (X = Cl, Br) and molecular oxygen. Preliminary mechanistic insights suggest that the bromination and chlorination reactions proceed by different pathways.
- Yang, Lujuan,Lu, Zhan,Stahl, Shannon S.
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supporting information; experimental part
p. 6460 - 6462
(2010/03/04)
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- Double helix formation of oligoresorcinols in water: Thermodynamic and kinetic aspects
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We previously reported that the oligoresorcinols formed double-stranded helices in neutral water through interstrand aromatic interactions. In the present study, we synthesized a new series of oligomers from the 2merto the 15mer to explore the thermodynamics, kinetics, and mechanism of the double helix formation of the oligoresorcinols in water. The double helix formation was dependent on the chain length of the oligomers and s ignificantly affected by solvent, pH, salt, and temperature. The free energy change (-?G) for the double helix formation linearly increased withthe chain length from the 4mer to the 11mer (ΔΔG = -0.94 kc al mol-1 unit-1), whereas it did not change for the oligomers longer than the 11 mer. The van't Hoff analysis of the 9mer revealed that the double helix formation was an enthalpically driven process (ΔH = -27 ± 1.5 kcal mol-1 and ΔS = -70 ± 5 cal mol-1 K-1), which was consistentwith the upfield shifts in the 1H NMR spectra and the hypoch romicity of the absorption spectra as a result of the interstrand aromatic interactions in water. Furthermore, the kinetic analysis of the chainexchange reaction between the double helices of the optically active an d optically inactive 11mers revealed a small ΔS?, suggesting that the chain exchange proceeds not via the dissociation-association pathway, but via the direct exchange pathway.
- Goto, Hidetoshi,Furusho, Yoshio,Miwa, Kazuhiro,Yashima, Eiji
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scheme or table
p. 4710 - 4719
(2009/09/26)
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- Total synthesis of psoralidin, an anticancer natural product
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A base-catalyzed condensation of phenyl acetate with acid chloride, followed by intramolecular cyclization and microwave-assisted cross-metathesis reaction, leads to the first total synthesis of psoralidin, a natural product with a broad range of biological activities, in a highly convergent and regioselective manner.
- Pahari, Pallab,Rohr, Juergen
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supporting information; experimental part
p. 2750 - 2754
(2009/08/15)
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- Oligoresorcinols fold into double helices in water
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We report the first double helices with a controlled helicity in water based on oligoresorcinols as a new, simplest water-soluble structural motif. The molecular strands of the oligoresorcinols self-assemble into double helices with the aid of aromatic interactions in water as characterized by 1H NMR and absorption spectroscopies together with the X-ray crystallographic study of the pentamer. The double helix formation is sensitive to the chain length, solvent composition, and temperature. Moreover, a bias in the screw sense of the double helices was achieved by covalently attaching chiral substituents to both ends of the molecular strands. Copyright
- Goto, Hidetoshi,Katagiri, Hiroshi,Furusho, Yoshio,Yashima, Eiji
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p. 7176 - 7178
(2007/10/03)
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- Bromination of aromatic compounds with potassium bromide in the presence of poly(4-vinylpyridine)-supported bromate in nonaqueous solution
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A simple, efficient, and mild method for selective bromination of activated aromatic compounds using potassium bromide in the presence of poly(4-vinylpyridine)-supported bromate in nonaqueous solution is reported. The results obtained revealed excellent to good selectiveity between ortho and para positions of methoxyarenes, anilines, and phenols. Copyright Taylor & Francis, Inc.
- Tajik, Hassan,Shirini, Farhad,Hassan-Zadeh, Parwin,Rashtabadi, Hassan Rafiee
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p. 1947 - 1952
(2007/10/03)
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- Practical and regioselective brominations of aromatic compounds using tetrabutylammonium peroxydisulfate
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Direct bromination of wide range of aromatic compounds substituted with electron donating groups such as methoxy, hydroxy, or amino groups have been achieved with high regioselectivity by the reaction with Br2 in the presence of tetrabutylammonium peroxydisulfate 1 under mild conditions in acetonitrile in excellent yields. The use of lithium bromide as a bromination reagent afforded high yields of monobromo compounds with complete regioselectivity under neutral and mild reaction conditions in acetonitrile.
- Park, Min Young,Yang, Seung Gak,Jadhav, Vidyadhar,Kim, Yong Hae
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p. 4887 - 4890
(2007/10/03)
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- Pyridinium hydrobromide perbromide induces ipsobromodeformylation in o-hydroxy and o-methoxy substituted aromatic aldehydes
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The reaction of o-hydroxy and o-methoxy substituted aromatic aldehydes with PHPB in pyridine gives aromatic bromination products including those arising from ipsobromodeformylation.
- Córdoba, Rubén,Plumet, Joaquín
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p. 9303 - 9305
(2007/10/03)
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- Conjugated macrocycles related to the porphyrins. Part 18: Synthesis and spectroscopic characterization of electron-rich benzi- and oxybenziporphyrins: Influence of steric and electronic factors on porphyrinoid aromaticity
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Although 4,6-dihydroxyisophthalaldehydes failed to condense with tripyrranes to produce porphyrinoid products, the related dimethoxydialdehydes reacted with tripyrrane 9 to give, following oxidation with aqueous ferric chloride solution, nonaromatic dimet
- Richter, Daniel T,Lash, Timothy D
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p. 3657 - 3671
(2007/10/03)
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- Selective halogenation of aromatics by dimethyldioxirane and halogen ions
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The oxidation of halogen anions by dimethyldioxirane (DMD) produced reactive species which led, in acidic media, to the halogenation of activated aromatic rings. The reaction can be efficiently controlled to obtain selective and mixed halogenated species.
- Bovicelli,Mincione,Antonioletti,Bernini,Colombari
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p. 2955 - 2963
(2007/10/03)
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- Electrophilic Aromatic Bromination Using Bromodimethylsulfoniuin Bromide Generated in Situ
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It has been shown that bromodimethylsulfonium bromide, generated in situ by treating dimethyl sulfoxide with aqueous hydrobromic acid, is a milder and more selective reagent for electrophilic aromatic bromination than elemental bromine.
- Majetich, George,Hicks, Rodgers,Reister, Steven
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p. 4321 - 4326
(2007/10/03)
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- Bromophloroglucinols and their methyl ethers
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All 16 bromination products of phloroglucinol and its methyl ethers, as well as five bromoresorcinols and three of their dimethyl ethers, were synthesized and analyzed by nuclear magnetic resonance spectroscopy.Two or three equivalents of bromine convert phloroglucinol to di- and tribromophloroglucinol, 5-methoxyresorcinol to the tri- and 2,4-dibromo, 3,5-dimethoxyphenol to the tri- and 2,6-dibromo, and 1,3,5-trimethoxybenzene to the dibromo compound.With one equivalent of bromine, 3,5-dimethoxyphenol reacts preferentially at C-2 while 5-methoxyresorcinol gives both monobromo isomers.Partial debromination with sodium sulfite yields successively 2,4-dibromo- and 2-bromo-5-methoxyresorcinol from the tribromo compound but fails with brominated 3,5-dimethoxyphenol.In the resorcinol series, C-2 is invariably the least reactive position. 4,6-Dibromo-5-methoxyresorcinol and 2,4-dibromo-3,5-dimethoxyphenol are accessible by methylation of dibromophloroglucinol, obtained from 3,5-dibromo-2,4,6-trihydroxybenzoic acid by decarboxylation.In contrast to resorcinol and tribromoresorcinol, the partial bromination of pholoroglucinol and debromination of tribromopholoroglucinol are not selective.The 13Cnmr spectra of bromophloroglucinol methyl ethers show characteristic downfield shifts for methoxy groups orthogonal to the aromatic ring plane.
- Kiehlmann, E.,Lauener, R. W.
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p. 335 - 344
(2007/10/02)
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- Halogenation of Phenols and Phenyl Ethers with Potassium Halides in the Presence of 18-Crown-6 on Oxidation with m-Chloroperbenzoic Acid
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Several types of phenyl ethers have been monobrominated in the ring in good yields with potassium bromide in the presence of 18-crown-6 on oxidation with m-chloroperbenzoic acid.Monoiodination takes place with both phenyl ethers and free phenols when potassium iodide is employed.
- Srebnik, Morris,Mechoulam, Raphael,Yona, Irene
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p. 1423 - 1428
(2007/10/02)
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- DIMETHOXY AROMATIC COMPOUNDS. II. BROMODEALKYLATION REACTIONS OF meta-DIMETHOXYBENZENE DERIVATIVES
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Comparison of the behaviour of 1,1-bis(dimethoxyphenyl)ethane derivatives towards bromination in different experimental conditions shows that only 2,4-dimethoxy derivatives undergo bromodealkylation processes, the aromatic displacement of the arylethane group occurring only when a high electron density resides at the alkyl-substituted carbon
- Natoli, Maria C.,Agozzino, Pasquale,Ceraulo, Leopoldo,Lamartina, Liliana
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p. 493 - 502
(2007/10/02)
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