RUTHENIUM DIPHOSPHINE COMPLEXES FOR CATALYSIS - A GENERAL-SYNTHESIS AND DIRECT COMPARISONS WITH RHODIUM COMPLEXES

被引：0
|
作者：
BROWN, JM
ROSE, M
KNIGHT, FI
WIENAND, A
机构：
来源：
RECUEIL DES TRAVAUX CHIMIQUES DES PAYS-BAS-JOURNAL OF THE ROYAL NETHERLANDS CHEMICAL SOCIETY | 1995年 / 114卷 / 4-5期
关键词：
HYDROGENATION; MECHANISM; DEUTERATION; DIASTEREOSELECTIVITY;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A method for the preparation of diphosphineruthenium complexes from a range of diphosphine precursors is described. The stable products, of general formula P2Ru(allyl)acac (P = phosphine ligand), do not catalyse the hydrogenation of alkenes but can easily be converted into catalytically active species by reaction with trimethylsilyl trifluoromethanesulfonate. The chemistry involved in this transformation is discussed. Catalysis of the hydrogenation of a range of alkenes, and direct comparison with related rhodium reductions, is described. Some mechanistic insights are gained through additions of D-2 to alkenes and parallel hydrogenations on deuterated solvent, supporting the intervention of conventional dihydride and alkyl hydride intermediates which undergo exchange with solvent at both stages.
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页码：242 / 251
页数：10
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