69983-36-4Relevant academic research and scientific papers
METHOD FOR PRODUCING ARYLSILANE COMPOUND CONTAINING HALOSILANE COMPOUND AS RAW MATERIAL
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Paragraph 0059-0063, (2020/03/06)
PROBLEM TO BE SOLVED: To provide a method for producing an arylsilane compound with low production cost. SOLUTION: A method for producing an arylsilane compound includes a reaction step for the cross-coupling reaction of a halosilane compound represented by general formula (A-1), (A-2), or (A-3) and an arylboronic acid pinacol ester in the presence of a nickel catalyst, a Lewis acid catalyst, and an organic base (R independently represent an aromatic hydrocarbon group, a heteroaromatic ring group, or a C1-20 hydrocarbon group; X independently represent a halogeno group or a trifluoromethanesulfonyloxy group). SELECTED DRAWING: None COPYRIGHT: (C)2020,JPOandINPIT
Modular diphosphine ligands based on bisphenol A backbones
Van Der Vlugt, Jarl Ivar,Bonet, Josep M.,Mills, Allison M.,Spek, Anthony L.,Vogt, Dieter
, p. 4389 - 4392 (2007/10/03)
A straightforward two-step synthesis is used to obtain new phosphorus-containing ligands based on readily available bisphenol A type backbones. Five diphosphine ligands have been prepared in good yields. An X-ray crystallographic study is presented for li
New Diphosphane Ligands Based on Bisphenol A Backbones - Synthesis and Coordination Chemistry
Van Der Vlugt, Jarl Ivar,Grutters, Michiel M. P.,Mills, Allison M.,Kooijman, Huub,Spek, Anthony L.,Vogt, Dieter
, p. 4361 - 4369 (2007/10/03)
A series of easily accessible diphosphane compounds 1-4, based on bisphenol A derived backbones, has been prepared. A straightforward two-step synthetic route has been employed to obtain these new ligands in good yields from cheap starting materials. Mole
Synthesis of biaryls by intramolecular radical aryl migration from silicon to carbon
Studer, Armido,Bossart, Martin,Vasella, Tomaso
, p. 985 - 988 (2007/10/03)
(equation presented) A new method for the preparation of biaryls via intramolecular 1,5 aryl migration reaction from silicon in silyl ethers to aryl radicals is presented. Various readily available diphenylsilyl ethers can be used as substrates in this reaction. Functionalized aryl groups can also be transferred. The analogous 1,4 aryl migration reaction is less efficient.
Transmission of electronic effects via a SiMe2 spacer in 4-mono- and 4,4'-disubstituted diphenyldimethylsilanes: 29Si and 13C NMR spectroscopy and PM3 semi-empirical calculations
Walree, Cornelis A. van,Lauteslager, Xavier Y.,Wageningen, Andreas M. A. van,Zwikker, Jan W.,Jenneskens, Leonardus W.
, p. 117 - 126 (2007/10/02)
Some 29Si and 13C NMR studies were performed of series of 4-substituted phenyltrimethylsilanes and 4-substituted and 4,4'-disubstituted diphenyldimethylsilanes.Within each series linear relationships are found between the chemical shifts and (a) the Hammett substituent constants ?p and (b) the PM3-calculated total atomic charges.It is inferred that the SiMe2 ?-type spacer weakly mediates substituent effects in the ground state via a bond polarization mechanism.A comparison with available data for 4-substituted and 4,4'-disubstituted diphenylmethanes shows that the SiMe2 group is a better transmitter of electronic effects that the CH2 group. Keywords: Silicon; 29Si NMR; 13C NMR; Substituent effects; MO calculations
