Ligand manipulation and design for ruthenium metathesis and tandem metathesis-hydrogenation catalysis

被引:36
作者
Fogg, DE [1 ]
Amoroso, D [1 ]
Drouin, SD [1 ]
Snelgrove, J [1 ]
Conrad, J [1 ]
Zamanian, F [1 ]
机构
[1] Univ Ottawa, Dept Chem, Ctr Catalysis Innovat & Res, Ottawa, ON K1N 6N5, Canada
关键词
ruthenium; metathesis; hydrogenation; selectivity; diphosphines;
D O I
10.1016/S1381-1169(02)00242-X
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
Results of investigations into tandem ring-opening metathesis polymerization (ROMP)-hydrogenation are reviewed, in which hydrogen and 3-chloro-3-methyl-1-butyne provide simple chemical toggles to switch between metathesis and hydrogenation chemistry, enabling multiple tandem catalysis in chlorocarbon solvent. In the presence of methanol, hydrogenation of metathesis polymers can be carried out under 1 atm H-2. Issues of ligand design are examined in developing new Ru-diphosphine catalysts with improved selectivity, and an important decomposition pathway is identified for RuCl2 (PP)(CHR) systems (PP = chelating diphosphine). (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:177 / 184
页数:8
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