- Phosphine-catalysed reductive coupling of dihalophosphanes
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Classically tetraaryl diphosphanes have been synthesized through Wurtz-type reductive coupling of halophosphanes R2PX or more recently, through the dehydrocoupling of phosphines R2PH. Catalytic variants of the dehydrocoupling reactio
- Hering-Junghans, Christian,Schumann, André,Siewert, Jan-Erik
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supporting information
p. 15111 - 15117
(2021/11/12)
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- COMPOUNDS AND COMPOSITIONS FOR TREATING CONDITIONS ASSOCIATED WITH NLRP ACTIVITY
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In one aspect, compounds of Formula A, or a pharmaceutically acceptable salt thereof, are featured (Formula A) or a pharmaceutically acceptable salt thereof, wherein the variables shown in Formula A can be as defined anywhere herein.
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Page/Page column 299
(2020/06/10)
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- Linear Hydroaminoalkylation Products from Alkyl-Substituted Alkenes
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The regioselective conversion of alkyl-substituted alkenes into linear hydroaminoalkylation products represents a strongly desirable synthetic transformation. In particular, such conversions of N-methylamine derivatives are of great scientific interest, because they would give direct access to important amines with unbranched alkyl chains. Herein, we present a new one-pot procedure that includes an initial alkene hydroaminoalkylation with an α-silylated amine substrate and a subsequent protodesilylation reaction that delivers linear hydroaminoalkylation products with high selectivity from simple alkyl-substituted alkenes. For that purpose, new titanium catalysts have been developed, which are able to activate the α-C?H bond of more challenging α-silylated amine substrates. In addition, a direct relationship between the ligand structure of the new catalysts and the obtained regioselectivity is described.
- Warsitz, Michael,Doye, Sven
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supporting information
p. 15121 - 15125
(2020/10/23)
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- Imine compound, novel catalyst for olefin polymerization, and method for producing olefin polymer
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Disclosed is a compound represented by the following general formula (1). In the formula, X represents a nitrogen atom, Y represents a nitrogen atom or a phosphorous atom, R5 and R6 independently represent C1-30 hydrocarbon groups which may contain a hydrogen atom or a hetero atom, and at least one of R5 and R6 is a hydrocarbon group having two or more hetero atom-containing groups, and R1 to R4 independently represent a hydrogen atom, a halogen atom or a C1-20 hydrocarbon group which may contain a hetero atom. A plurality of groups selected from the R1 to the R4 may be connected with one another to form aliphatic rings, aromatic rings or heterocycles containing hetero atoms selected from oxygen, nitrogen and sulfur. At the time, the number of ring members is 5-8, and the ring may have a substituent.
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Paragraph 0188; 0189; 0191
(2016/10/09)
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- LUMINESCENT DIAZABENZIMIDAZOLE CARBENE METAL COMPLEXES
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The present invention relates to metal-carbene complexes of the general formula (I), where variable M is Ir or Pt and that are characterized by variable R being a group of formula (a). The complexes are used in organic electronic devices, especially OLEDs (Organic Light-Emitting Diodes), illuminating elements, stationary visual display units and in material layers as emitter, charge transport material and/or charge or exiton blocker.
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Paragraph 158; 159
(2015/02/25)
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- Reactive sigma-aryliron complexes or iron-promoted coupling of two Phenyl Anions to one Bis(cyclohexadienylidene) ligand: Synthesis, structure, mass spectrometry, and DFT calculations
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A reaction of the bulky alkylcyclopentadienyliron(II) high-spin complex [Cp?Fe(μ-Br)]2 (la) (Cp? = C5H 2(CMe3)3-1,2,4) with phenylmagnesium bromide produced the deep blue dinuclear complex [(Cp?Fe)su
- Wallasch, Mark W.,Weismann, Daniel,Riehn, Christoph,Ambras, Stefan,Wolmershaeuser, Gotthelf,Lagutschenkov, Anita,Niedner-Schatteburg, Gereon,Sitzmann, Helmut
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experimental part
p. 806 - 813
(2010/04/25)
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- Sterically Congested Molecules, 11. The 2,6-Diisopropylphenyl Substituent at C=C and C=N Groups
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Two series of new compounds with sterically shielded, sp2-hybridized C-α atoms are prepared from bromo(chloro)-2,6-diisopropylbenzene.The α-(2,6-diisopropylphenyl) substituent common to all of them is used as an NMR-spectroscopic indicator for
- Knorr, Rudolf,Ruhdorfer, Jakob,Boehrer, Petra,Bronberger, Hildegard,Raepple, Edith
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p. 433 - 438
(2007/10/02)
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- Cyanobenzeneacetonitriles
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Certain substituted cyanobenzeneacetonitriles, and their halobenzyl halide intemediates are effective preemergence and postemergence herbicides, which control undesired vegetation without injury to crops.
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