8-Methylquinoline palladacycles: stable and efficient catalysts for carbon-carbon bond formation

被引:55
作者
Evans, P
Hogg, P
Grigg, R [1 ]
Nurnabi, M
Hinsley, J
Sridharan, V
Suganthan, S
Korn, S
Collard, S
Muir, JE
机构
[1] Univ Leeds, Sch Chem, MIDAS Ctr, Leeds LS2 9JT, W Yorkshire, England
[2] Johnson Matthey, Royston SG8 5HE, Herts, England
[3] Avecia, Huddersfield HD2 1EA, W Yorkshire, England
关键词
precatalyst; allene; cascade;
D O I
10.1016/j.tet.2005.06.118
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Cyclopalladated, phosphine free, 8-methyl quinoline based complexes (2a-j) are excellent catalysts for the Heck vinylation of aryl iodides and bromides with turnover numbers of greater than 25 million observed in some cases. The catalysts are air and moisture stable. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:9696 / 9704
页数:9
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