- MODIFICATION OF OLEFIN POLYMERIZATION CATALYSTS II. A 29Si NMR STUDY ON THE COMPLEXATION OF SILYL ETHERS WITH TRIETHYLALUMINIUM
-
The effect of complexation with a Lewis acid, AlEt3, and alkylation on the chemical shift of silyl ethers has been studied using 29Si NMR spectroscopy.The substitution of a methoxy group for an ethyl group shifts the 29Si signal on an average by 36.9 ppm to lower field, and the signal for the complexed silyl ether is usually shifted to lower field compared with that for the uncomplexed ether, the shift varying between -1.4 and 18.1 ppm.Dynamic processes have been observed for some of the spectra; this is interpreted in terms of competition of Al acceptors for the several silyl ethers simultaneous present.
- Sormunen, Pekka,Iiskola, Eero,Vaehaesarja, Eila,Pakkanen, Tuula T.,Pakkanen, Tapani A.
-
-
Read Online
- Metal-free hydrogen evolution cross-coupling enabled by synergistic photoredox and polarity reversal catalysis
-
A synergistic combination of photoredox and polarity reversal catalysis enabled a hydrogen evolution cross-coupling of silanes with H2O, alcohols, phenols, and silanols, which afforded the corresponding silanols, monosilyl ethers, and disilyl ethers, respectively, in moderate to excellent yields. The dehydrogenative cross-coupling of Si-H and O-H proceeded smoothly with broad substrate scope and good functional group compatibility in the presence of only an organophotocatalyst 4-CzIPN and a thiol HAT catalyst, without the requirement of any metals, external oxidants and proton reductants, which is distinct from the previously reported photocatalytic hydrogen evolution cross-coupling reactions where a proton reduction cocatalyst such as a cobalt complex is generally required. Mechanistically, a silyl cation intermediate is generated to facilitate the cross-coupling reaction, which therefore represents an unprecedented approach for the generation of silyl cationviavisible-light photoredox catalysis.
- Cao, Jilei,Lu, Kanghui,Ma, Lishuang,Yang, Xiaona,Zhou, Rong
-
supporting information
p. 8988 - 8994
(2021/11/23)
-
- Selective Electrochemical Hydrolysis of Hydrosilanes to Silanols via Anodically Generated Silyl Cations
-
The first electrochemical hydrolysis of hydrosilanes to silanols under mild and neutral reaction conditions is reported. The practical protocol employs commercially available and cheap NHPI as a hydrogen-atom transfer (HAT) mediator and operates at room temperature with high selectivity, leading to various valuable silanols in moderate to good yields. Notably, this electrochemical method exhibits a broad substrate scope and high functional-group compatibility, and it is applicable to late-stage functionalization of complex molecules. Preliminary mechanistic studies suggest that the reaction appears to proceed through a nucleophilic substitution reaction of an electrogenerated silyl cation with H2O.
- Liang, Hao,Wang, Lu-Jun,Ji, Yun-Xing,Wang, Han,Zhang, Bo
-
supporting information
p. 1839 - 1844
(2020/12/01)
-
- Self-Assembled Open Porous Nanoparticle Superstructures
-
Imparting porosity to inorganic nanoparticle assemblies to build up self-assembled open porous nanoparticle superstructures represents one of the most challenging issues and will reshape the property and application scope of traditional inorganic nanoparticle solids. Herein, we discovered how to engineer open pores into diverse ordered nanoparticle superstructures via their inclusion-induced assembly within 1D nanotubes, akin to the molecular host-guest complexation. The open porous structure of self-assembled composites is generated from nonclose-packing of nanoparticles in 1D confined space. Tuning the size ratios of the tube-to-nanoparticle enables the structural modulation of these porous nanoparticle superstructures, with symmetries such as C1, zigzag, C2, C4, and C5. Moreover, when the internal surface of the nanotubes is blocked by molecular additives, the nanoparticles would switch their assembly pathway and self-assemble on the external surface of the nanotubes without the formation of porous nanoparticle assemblies. We also show that the open porous nanoparticle superstructures can be ideal candidate for catalysis with accelerated reaction rates.
- Liu, Rongjuan,Wei, Jingjing,Wei, Yanze,Yang, Zhijie,Zhang, Fenghua
-
supporting information
(2021/08/20)
-
- Highly Selective Hydroxylation and Alkoxylation of Silanes: One-Pot Silane Oxidation and Reduction of Aldehydes/Ketones
-
An efficient chemoselective iridium-catalyzed method for the hydroxylation and alkoxylation of organosilanes to generate hydrogen gas and silanols or silyl ethers was developed. A variety of sterically hindered silanes with alkyl, aryl, and ether groups were tolerated. Furthermore, this atom-economical catalytic protocol can be used for the synthesis of silanediols and silanetriols. A one-pot silane oxidation and chemoselective reduction of aldehydes/ketones was also realized.
- Luo, Nianhua,Liao, Jianhua,Ouyang, Lu,Wen, Huiling,Zhong, Yuhong,Liu, Jitian,Tang, Weiping,Luo, Renshi
-
p. 165 - 171
(2020/01/21)
-
- Half-sandwich ruthenium(ii) complexes with tethered arene-phosphinite ligands: Synthesis, structure and application in catalytic cross dehydrogenative coupling reactions of silanes and alcohols
-
The preparation of the tethered arene-ruthenium(ii) complexes [RuCl2{η6:κ1(P)-C6H5(CH2)nOPR2}] (R = Ph, n = 1 (9a), 2 (9b), 3 (9c); R = iPr, n = 1 (10a), 2 (10b), 3 (10c)) from the corresponding phosphinite ligands R2PO(CH2)nPh (R = Ph, n = 1 (1a), 2 (1b), 3 (1c); R = iPr, n = 1 (2a), 2 (2b), 3 (2c)) is presented. Thus, in a first step, the treatment at room temperature of tetrahydrofuran solutions of dimers [{RuCl(μ-Cl)(η6-arene)}2] (arene = p-cymene (3), benzene (4)) with 1-2a-c led to the clean formation of the corresponding mononuclear derivatives [RuCl2(η6-p-cymene){R2PO(CH2)nPh}] (5-6a-c) and [RuCl2(η6-benzene){R2PO(CH2)nPh}] (7-8a-c), which were isolated in 66-99% yield. The subsequent heating of 1,2-dichloroethane solutions of these compounds at 120 °C allowed the exchange of the coordinated arene. The substitution process proceeded faster with the benzene derivatives 7-8a-c, from which complexes 9-10a-c were generated in 61-82% yield after 0.5-10 h of heating. The molecular structures of [RuCl2(η6-p-cymene){iPr2PO(CH2)3Ph}] (6c) and [RuCl2{η6:κ1(P)-C6H5(CH2)nOPiPr2}] (n = 1 (10a), 2 (10b), 3 (10c)) were unequivocally confirmed by X-ray diffraction methods. In addition, complexes [RuCl2{η6:κ1(P)-C6H5(CH2)nOPR2}] (9-10a-c) proved to be active catalysts for the dehydrogenative coupling of hydrosilanes and alcohols under mild conditions (r.t.). The best results were obtained with [RuCl2{η6:κ1(P)-C6H5(CH2)3OPiPr2}] (10c), which reached TOF and TON values up to 117 600 h-1 and 57 000, respectively.
- González-Fernández, Rebeca,Crochet, Pascale,Cadierno, Victorio
-
p. 210 - 222
(2019/12/28)
-
- Metal-free visible-light-mediated aerobic oxidation of silanes to silanols
-
Oxidation of silanes into silanols using water/air has attracted considerable attention. The known methods with no exception required a metal catalyst. Herein we report the first metal-free method: 2 mol% Rose Bengal as the catalyst, air (O2) as the oxidant, water as the additive and under visible light irradiation. While this method produces various silanols in a simple, cost-effective, efficient (92%–99% yields) and scalable fashion, its reaction mechanism is very different than the reported ones associated with metal catalysis.
- Wang, Jing,Li, Bin,Liu, Li-Chuan,Jiang, Chenran,He, Tao,He, Wei
-
p. 1594 - 1599
(2018/08/22)
-
- Platinum Complexes with a Phosphino-Oxime/Oximate Ligand
-
The platinum(II) complex [PtCl2(COD)] (2; COD = 1,5-cyclooctadiene) reacted with 1 and 2 equiv. of 2-(diphenylphosphanyl)benzaldehyde oxime (1) to generate [PtCl2{κ2-(P,N)-2-Ph2PC6H4CH=NOH}] (3) and [Pt{κ2-(P,N)-2-Ph2PC6H4CH=NOH}2][Cl]2 (4), respectively. Deprotonation of the oxime hydroxyl group of 3 with Na2CO3 led to the selective formation of the dinuclear species (μ-O)-[PtCl{κ2-(P,N)-2-Ph2PC6H4CH=NO}]2 (5), while the related methylated derivative (μ-O)-[PtMe{κ2-(P,N)-2-Ph2PC6H4CH=NO}]2 (7) could be obtained from the direct reaction of [PtMe2(COD)] (6) with the phosphino-oxime ligand 1. In the case of 4, its treatment with Na2CO3 yielded complex [Pt({κ2-(P,N)-2-Ph2PC6H4CH=NO}2H)][Cl] (8), as a result of the deprotonation of only one of the OH groups of 4. On the other hand, contrary to what was observed with 6, no deprotonation of the oxime occurred in the reaction of [PtMe3I]4 (9) with 1, from which the mononuclear PtIV derivative fac-[PtIMe3{κ2-(P,N)-2-Ph2PC6H4CH=NOH}] (10) was isolated. The solid-state structures of compounds 3, 4, 7 and 10 were determined by X-ray crystallography. In addition, the potential of all the synthesized complexes as catalysts for the dehydrogenative coupling of hydrosilanes with alcohols is also briefly discussed.
- Francos, Javier,Borge, Javier,Conejero, Salvador,Cadierno, Victorio
-
p. 3176 - 3186
(2018/07/31)
-
- Dehydrogenative Coupling of Hydrosilanes and Alcohols by Alkali Metal Catalysts for Facile Synthesis of Silyl Ethers
-
Cross-dehydrogenative coupling (CDC) of hydrosilanes with hydroxyl groups, using alkali metal hexamethyldisilazide as a single-component catalyst for the formation of Si-O bonds under mild condition, is reported. The potassium salt [KN(SiMe3)2] is highly efficient and chemoselective for a wide range of functionalized alcohols (99% conversion) under solvent-free conditions. The CDC reaction of alcohols with silanes exhibits first-order kinetics with respect to both catalyst and substrate concentrations. The most plausible mechanism for this reaction suggests that the initial step most likely involves the formation of an alkoxide followed by the formation of metal hydride as active species.
- Harinath, Adimulam,Bhattacharjee, Jayeeta,Anga, Srinivas,Panda, Tarun K.
-
p. 724 - 730
(2017/05/31)
-
- Metal-Free Ammonium Iodide Catalyzed Oxidative Dehydrocoupling of Silanes with Alcohols
-
An ammonium iodide catalyzed direct oxidative coupling of silanes with alcohols to give various alkoxysilane derivatives was discovered. tert -Butyl hydroperoxide proved to be an efficient oxidant for this transformation. Attractive features of this protocol include its transition-metal-free nature and the mild reaction conditions.
- Yuan, Yan-Qin,Kumar, Pailla Santhosh,Guo, Sheng-Rong
-
supporting information
p. 1620 - 1623
(2017/08/11)
-
- Catalytic Dehydrogenative Coupling of Hydrosilanes with Alcohols for the Production of Hydrogen On-demand: Application of a Silane/Alcohol Pair as a Liquid Organic Hydrogen Carrier
-
The compound [Ru(p-cym)(Cl)2(NHC)] is an effective catalyst for the room-temperature coupling of silanes and alcohols with the concomitant formation of molecular hydrogen. High catalyst activity is observed for a variety of substrates affording quantitative yields in minutes at room temperature and with a catalyst loading as low as 0.1 mol %. The coupling reaction is thermodynamically and, in the presence of a Ru complex, kinetically favourable and allows rapid molecular hydrogen generation on-demand at room temperature, under air, and without any additive. The pair silane/alcohol is a potential liquid organic hydrogen carrier (LOHC) for energy storage over long periods in a safe and secure way. Silanes and alcohols are non-toxic compounds and do not require special handling precautions such as high pressure or an inert atmosphere. These properties enhance the practical applications of the pair silane/alcohol as a good LOHC in the automotive industry. The variety and availability of silanes and alcohols permits a pair combination that fulfils the requirements for developing an efficient LOHC.
- Ventura-Espinosa, David,Carretero-Cerdán, Alba,Baya, Miguel,García, Hermenegildo,Mata, Jose A.
-
supporting information
p. 10815 - 10821
(2017/08/18)
-
- Synthesis of nitrogen and sulfur co-doped hierarchical porous carbons and metal-free oxidative coupling of silanes with alcohols
-
Hierarchically porous N and S co-doped carbon was prepared by using 2,5-dihydroxy-1,4-benzoquinone as the carbon source, thiourea as the N and S source, and SiO2 particles as the template. Using the material as the catalyst, oxidative coupling of silanes with alcohols was conducted for the first time under metal-free conditions.
- Chen, Bingfeng,Li, Fengbo,Mei, Qingqing,Yang, Youdi,Liu, Huizhen,Yuan, Guoqing,Han, Buxing
-
supporting information
p. 13019 - 13022
(2017/12/15)
-
- Highly efficient etherification of silanes by using a gold nanoparticle catalyst: Remarkable effect of O2
-
O2 is acting! A nanosized hydroxylapatite-supported Au nanoparticle (NP) catalyst exhibited high activity under aerobic conditions, and various silyl ethers could be obtained from diverse combinations of silanes with alcohols. Moreover, O2 was found to act not as a stoichiometric oxidizing reagent, but as a non-consumed promoter, significantly boosting the catalytic activity of AuNPs (see figure). Copyright
- Mitsudome, Takato,Yamamoto, Yuya,Noujima, Akifumi,Mizugaki, Tomoo,Jitsukawa, Koichiro,Kaneda, Kiyotomi
-
p. 14398 - 14402
(2013/11/06)
-
- An efficient method for the synthesis of symmetrical disiloxanes from alkoxysilanes using Meerwein's reagent
-
We report here a new and efficient route to symmetrical disiloxanes from their corresponding alkoxysilanes using Meerwein's reagent as mediator and potassium carbonate as additive under mild reaction conditions in acetonitrile. Our methodology is very simple, economic, and high yielding. We have also proposed a reaction mechanism with the plausible silyloxonium intermediates. Georg Thieme Verlag Stuttgart · New York.
- Jorapur, Yogesh R.,Shimada, Toyoshi
-
supporting information; experimental part
p. 1633 - 1638
(2012/08/07)
-
- Unsuccessful attempts to add alcohols to transient 2-amino-2-siloxy- silenes-leading to a new benign route for base-free alcohol protection
-
Thermolytic formation of transient 1,1-bis(trimethylsilyl)-2-dimethylamino- 2-trimethylsiloxysilene (2) from N,N-dimethyl(tris(trimethylsilyl)silyl) methaneamide (1) in presence of a series of alcohols was investigated. The products are, however, not the expected alcohol-silene addition adducts but silylethers formed in nearly quantitative yields. Thermolysis of 1 in the presence of both alcohols (MeOH or iPrOH) and 1,3-dienes (1,3-butadiene or 2,3-dimethyl-1,3-butadiene) gives alkyl-tris(trimethylsilyl)silylethers and the [4+2] cycloadducts between the silene and diene, which confirms the presence of 2 and that it is unreactive towards alcohols. The observed silylethers are substitution adducts where the amide group of the silylamide is replaced by an alkoxy group, and the reaction time is reflected in the steric bulk of the alcohol. Indeed, the formation of silylethers from the reaction of alcohols with silylamide represents a new base-free method for protection of alcohols. The protection reactions using 1 progresses at elevated temperatures, or alternatively, under acid catalysis at ambient temperature, and similar protections can be carried out with N-cyclohexyl(triphenylsilyl)methaneamide and N,N-dimethyl(trimethylsilyl)methaneamide. The latter silylamide can be used under neutral conditions at room temperature. The only by-products are formamides (N,N-dimethylformamide (DMF) or N-cyclohexylformamide), and the reactions can be performed without solvent. In addition to alcohols we also examined the method for protection of diols, thiols and carboxylic acids, and also these reactions proceeded in high yields and with good selectivities. The Royal Society of Chemistry.
- Guliashvili, Tamaz,Tibbelin, Julius,Ryu, Jiyeon,Ottosson, Henrik
-
supporting information; experimental part
p. 9379 - 9385
(2011/01/07)
-
- Silicon migration from oxygen to carbon and decarbonylation in methoxytriphenylsiloxycarbene
-
Thermolysis of 2-methoxy-2-triphenylsiloxy-5,5-dimethyl-Δ3-1,3,4-oxadiazoline affords methyl triphenylsilylformate and methyl triphenylsilyl ether via methoxytriphenylsiloxycarbene. Kinetics show that the carbene undergoes reversible 1,2-triphenylsilyl migration (Brook rearrangement) as well as irreversible decarbonylation. Computed transition states and activation energies (B3LYP/6-31+G*) suggest that the migration of the silyl group from oxygen to carbon occurs through an "in plane" transition state with the carbene lone pair forming a new bond to silicon. Decarbonylation involves a four-membered ring, achieved by nucleophilic attack of the oxygen atom of the methoxy group at silicon.
- Pezacki, John Paul,Loncke, Paul G.,Ross, Joseph P.,Warkentin, John,Gadosy, Timothy A.
-
p. 2733 - 2736
(2007/10/03)
-
- An Efficient Catalyst for the Conversion of Hydrosilanes to Alkoxysilanes
-
The copper(I) hydride 6 is an efficient catalyst for the alcoholysis of primary and secondary silanes.The reactions proceed at room temperature within a few hours and give the alkoxysilanes in high yields.Only with bulky alcohols or silanes are longer reaction times and/or increased temperatures required.The presence of air accelarates the reactions and gives rise to higher yields of alkoxysilanes, particularly with bulky alcohols.Diols react with PhRSiH2 (R = Me, Ph) to afford 1,3-dioxo-2-silacycloalkanes and with tertiary silanes to furnish the bissilylated diols.When unsaturated alcohols (2-propen-1-ol or 2-propyn-1-ol) are employed, the double or triple bond is retained. - Keywords: Catalytic silane alcoholysis; Alkoxysilanes
- Lorenz, Catrin,Schubert, Ulrich
-
p. 1267 - 1270
(2007/10/03)
-
- Secondary methoxycarbene complexes [(η5-C5Me5)M(CO)2(CHOMe)] + (M = Fe, Ru): Dynamic NMR studies and electrophilic properties
-
The anionic complex [(η5-C5Me5)Ru(CO)2] -K+ (3), a precursor of (η5-C5Me5)Ru(CO)2(CH 2OMe) (2), is conveniently obtained by reduction of [(η5-C5Me5)Ru(CO)2]2 by using a dispersion of potassium in boiling THF overnight. The methoxymethyl complexes (η5-C5Me5)M(CO)2(CH 2OMe) (1, M = Fe; 2, M: Ru) undergo an α-hydride abstraction with Ph3C+PF6- giving specifically the corresponding secondary methoxycarbene complexes [(η5-C5Me5)M(CO)2(CHOMe)] +PF6- (4, M = Fe; 5, M = Ru). Monitoring the above reaction by variable-temperature 1H and 13C NMR experiments shows that the carbene complexes 4 and 5 are formed at -80°C as a mixture of cis and trans isomers in a 90:10 and 95:5 kinetic ratio, respectively; upon warming, the cis form irreversibly isomerizes into the more sterically favored trans isomer. NOE studies on 5 indicate that isomerism in these systems arises from restricted carbene carbon-oxygen bond rotation. Complex 4a (4+CF3SO3-) is also formed in the reaction of 1 with Me3SiOSO2CF3 that proceeds by an intermolecular hydride transfer from the unreacted methoxymethyl complex 1 to the methylene cation intermediate [(η5-C5Me5)Fe(CO)2(=CH 2)]+. Reaction of 4 (-80°C) with PPh3 gives the unstable α-methoxyphosphonium salt [(η5-C5Me5)Fe(CO)2(CHOMePPh 3)]+PF6- (8) which was characterized at -20 °C by 1H, 31P, and 13C NMR spectroscopy. The preferred conformation of 8 is discussed. The [:CHOMe] ligand of 4 or 5 inserts into the Si-H bond of Et3SiH and Me2PhSiH, giving the methoxymethylsilanes 10 and 11, whereas 4 converts Ph3SiH into Ph3SiMe and Ph3SiOMe via a hydride/methoxide exchange. The new alkene complexes [(η5-C5Me5)M(CO)2(CH 2=CHR)]+PF6- (12, M = Fe, R = H; 13, M: Fe; R = Ph; 14, M = Ru, R = H; 15, M = Ru, R = Ph) are synthesized when the insertion reaction is carried out in the presence of CH2=CHR. Complex 15a (15+CF3SO3-) can be also obtained from 2 upon treatment with Me3SiOSO2CF3 in the presence of styrene. The X-ray crystal structure of 15a shows that it crystallizes in the monoclinic space group P21/c with unit cell parameters a = 8.533 (4) A?, b = 23.663 (7) A?, c = 11.480 (6) A?, β = 100.77 (7)°, and Z = 4. The structure was solved and refined (4333 reflections) to the final values for the residual R = 0.053 and Rw = 0.061.
- Guerchais, Véronique,Lapinte, Claude,Thépot, Jean-Yves,Toupet, Loic
-
p. 604 - 612
(2008/10/08)
-
- Silicon-oxygen bond-forming reactions upon addition of silanes and silyl halides to the 16-electron alkoxyiridium complexes trans-ROIr(CO)[P(p-tol)3]2 (R = Me or Ph; p-tol = p-Tolyl). Crystal and molecular structure of H2Ir(CO)(SiMe2Ph)[P(p-tol)3]2
-
The reactions of silanes and silyl halides with the 16-electron alkoxyiridium complexes trans-ROIr(CO)[P(p-tol)3]2 (R = Me or Ph; p-tol = p-tolyl) are reported. The silanes add oxidatively to the alkoxyiridium complex; the resulting complex undergoes reductive elimination of an alkoxysilane with ultimate formation of H2Ir(CO)(SiR3)[P(p-tol)3]2. Reactions of silyl halides with the alkoxy complex results in formation of silicon-oxygen bonds. The dihydride H2Ir(CO)(SiMe2Ph)[P(p-tol)3]2, which is an active hydrogenation catalyst, was subjected to structural analysis. It crystallizes in the centrosymmetric triclinic space group P1 with a = 10.692 (1) ?, b = 11.199 (2) ?, c = 20.557 (4) ?, α = 75.991 (14)°, β = 84.505 (14)°, γ = 77.503 (11)°, V = 2329 (1) ?3, and Z = 2. Diffraction data (Mo Kα, 2θ = 4.5-45.0°) were collected with a Syntex P21 automated diffractometer; the structure was solved and refined to RF = 4.9% for all 6119 reflections (RF = 3.6% for those 5094 data with |Fo| > 6σ(|Fo|)). The non-hydride ligands occupy expanded sites in an octahedral iridium(III) complex with Ir-P(1) = Ir-P(2) = 2.366 (2) ?, Ir-Si = 2.414 (2) ?, and Ir-CO = 1.900 (8) ?. The SiMe2Ph ligand is trans to a P(p-tol)3 ligand (P(1)-Ir-Si = 146.39 (7)°). The hydride ligands were located and refined; their positions are of limited accuracy, but they lie in mutually cis sites, trans to a P(p-tol)3 ligand (P(2)-Ir-H(1) = 169.2 (21)°) and to the CO ligand (C-(1)-Ir-H(2) = 169.4 (22)°).
- Rappoli, Brian J.,Janik, Thomas S.,Churchill, Melvyn Rowen,Thompson, Jeffrey S.,Atwood, Jim D.
-
p. 1939 - 1944
(2008/10/08)
-
- PHENYLAZOTRIORGANOSILANES AS SILYLATED PHENYLDIAZENES; A CONVENIENT PRECURSOR FOR PHENYLDIAZENE
-
Phenylazotriphenyl- (Ia) and phenylazotrimethyl-silane (Ib) react with alcohols to give the corresponding alkoxytriorganosilane and benzene as the major products.Spectroscopic investigations (UV) suggested that phenyldiazene was formed as an intermediate which afforded the final reaction products.Chemical evidence for the formation of phenyldiazene was obtained by the reaction of Ia with methanol-d in nonane.Phenylazotriorganosilanes are convenient precursors for phenyldiazene.
- Watanabe, Hamao,Awano, Ken-Ichi,Ohmori, Manabu,Kodama, Nobuhiro,Sakamoto, Jun-Ichi,et al.
-
-
- -
-
Brominations of triphenylallylsilane, methylphenyl-1-naphthylallylsilane, 2(1-naphthyl)-2-allyl-1,2,3,4-tetrahydro-2-silanaphthalene and triphenylallylgermane have been studied in carbon tetrachloride, acetic acid and methanol as solvents. Either cleavage
- Carre,Corriu,Henner
-
p. 589 - 598
(2007/10/05)
-