Rhodium-catalysed asymmetric hydroformylation of vinylarenes with chiral P,N-ligands based on DIOP skeleton

被引:19
作者
Aghmiz, A
Masdeu-Bultó, AM
Claver, C
Sinou, D
机构
[1] Univ Rovira & Virgili, Dept Quim Fis & Inorgan, Tarragona 43005, Spain
[2] Univ Lyon 1, CPE Lyon, CNRS, Lab Synth Asymetr Associe, F-69622 Villeurbanne, France
关键词
rhodium; hydroformylation; P; N-ligands; asymmetric catalysis;
D O I
10.1016/S1381-1169(01)00519-2
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Hydroformylation of vinylarenes is pet-formed using rhodium precursors with various P,N-donor chiral 4-diphenylphosphanyl-1-(dialkylamino)butane ligands (8a-d) with DIOP backbone. The systems were active at mild conditions and the selectivity in aldehydes was total when mixtures of CO/H-2 at a ratio 1/1 were used. The maximum regioselectivity in the branched products was 95%. The highest ee was 23%. NMR studies under catalytic conditions showed that species with monodentate ligands were present in the catalytic solution. (C) 2002 Published by Elsevier Science B.V.
引用
收藏
页码:111 / 119
页数:9
相关论文
共 31 条