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Effect of triarylphosphane ligands on the rhodium‐catalyzed hydrosilylation of alkene
Author(s) -
Xue Mei,
Li Jiayun,
Peng Jiajian,
Bai Ying,
Zhang Guodong,
Xiao Wenjun,
Lai Guoqiao
Publication year - 2014
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3092
Subject(s) - hydrosilylation , chemistry , rhodium , alkene , styrene , catalysis , trimethylsilyl , ligand (biochemistry) , medicinal chemistry , triethoxysilane , selectivity , organic chemistry , polymer chemistry , copolymer , polymer , biochemistry , receptor
A series of triarylphosphanes ( 1a , 2a , 3a , 4a , 5a , 6a , 7a , 8a , 9a , 10a , 11a ) have been synthesized. An X‐ray crystal structure analysis of (2‐bromophenyl)diphenylphosphane ( 1a ) unambiguously confirmed the constitution of the functionalized phosphane. The hydrosilylation reaction of styrene with triethoxysilane catalyzed with RhCl 3 /triarylphosphane was studied. In comparison with the classic Wilkinson's catalyst , rhodium complexes with functionalized triarylphosphane ligands are characterized by a very high catalytic effectiveness for the hydrosilylation of alkene. Among these catalysts tested, RhCl 3 /diphenyl(2‐(trimethylsilyl)phenyl)phosphane ( 8a ) exhibited excellent catalytic properties. Using this silicon‐containing phosphane ligand for the rhodium‐catalyzed hydrosilylation of styrene, both higher conversion of alkene and higher β‐adduct selectivity were obtained than with Wilkinson's catalyst . Copyright © 2014 John Wiley & Sons, Ltd.