6332-03-2Relevant academic research and scientific papers
2,2 (Diarlyl) Vinylphosphine compound, palladium catalyst thereof, and process for producing arylamine, diaryl, or arylalkyne with the catalyst
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, (2008/06/13)
A novel 2,2-(diaryl)vinylphosphine compound represented by the following general formula (1): (wherein R1 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc.; R2, R3, R4, R5, R6, and R7 may be the same or different and each is an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc., provided that R4 and R5 taken together and/or R6 and R7 taken together may represent a fused benzene ring, a substituted fused benzene ring, a trimethylene group, etc.; and p, q, r, and s each is 0 to 5, provided that p+q and r+s each is in the range of from 0 to 5); a palladium-phosphine catalyst obtained by causing a palladium compound to act on the novel 2,2-(diaryl)vinylphosphine compound; and a process for obtaining an arylamine, a diaryl and an arylalkyne in the presence of the palladium-phosphine catalyst.
2,2-(Diaryl)vinylphosphine compound, palladium catalyst thereof, and process for producing arylamine, diaryl, or arylalkyne with the catalyst
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Example 4, (2010/01/31)
A novel 2,2-(diaryl)vinylphosphine compound represented by the following general formula (1): (wherein R1 is a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc.; R2, R3, R4, R5, R6, and R7 may be the same or different and each is an alkyl group having 1 to 6 carbon atoms, an alicyclic group having 5 to 7 carbon atoms, etc., provided that R4 and R5 taken together and/or R6 and R7 taken together may represent a fused benzene ring, a substituted fused benzene ring, a trimethylene group, etc.; and p, q, r, and s each is 0 to 5, provided that p+q and r+s each is in the range of from 0 to 5); a palladium-phosphine catalyst obtained by causing a palladium compound to act on the novel 2,2-(diaryl)vinylphosphine compound; and a process for obtaining an arylamine, a diaryl and an arylalkyne in the presence of the palladium-phosphine catalyst.
Heteroorganic betaines 1. Synthesis of betaines containing the +P-C-Si-S- and +P-C-C-S- fragments and their characterization by multinuclear NMR spectroscopy
Borisova, I. V.,Zemlyanskii, N. N.,Shestakova, A. K.,Ustynyuk, Yu. A.,Chernyshev, E. A.
, p. 920 - 928 (2007/10/03)
A method for the synthesis of a new class of betaines, viz., R13P+CR2R3SiR4S-, was developed. The experimental evidence for the intermediate formation of betaines R13P+-CR2R3-CR4R5-S- in the Wittig reaction for a series of thiocarbonyl compounds was obtained. A comparative analysis of the NMR spectra of betaines containing the +P-C-Si-S- and +P-C-C-S- fragments was performed.
Photochromism of 1,1-Diaryl-1-alkanols
Matsui, Masaki,Tsuge, Michinori,Shibata, Katsuyoshi,Muramatsu, Hiroshige
, p. 1753 - 1755 (2007/10/02)
1,1-Bis-1-alkanols were found to show photochromism.
Process for preparing diphenylalkene derivatives
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, (2008/06/13)
A process for preparing a diphenylalkene derivative of the formula [II] STR1 which comprises oxidizing a diphenylalkanoic acid derivative of the formula [I] STR2 wherein R1 and R2 are each substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aralkyl or substituted or unsubstituted aryl, R1 and R2 may form a heteroring together theirwith or with an adjacent benzene ring, R3, R4, R5, R6, R7, R8, R9, R10 and R11 are each hydrogen atom, halogen atom, substituted or unsubstituted alkyl, substituted or unsubstituted hydroxyl or substituted or unsubstituted amino, R12 and R13 are each hydrogen atom or substituted or unsubstituted alkyl, X is carboxyl, amide, ester or halide thereof.
