Cobalt-catalyzed cycloisomerization of 1,6-enynes and allyl propargyl ethers

被引：35
|
作者：
Ajamian, A [1 ]
Gleason, JL [1 ]
机构：
[1] McGill Univ, Dept Chem, Montreal, PQ H3A 2K6, Canada
来源：
ORGANIC LETTERS | 2003年 / 5卷 / 14期
关键词：
D O I：
10.1021/ol034541f
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
graphic 1,6-Enynes and allyl propargyl ethers undergo a cobalt-catalyzed formal 5-endo-dig cyclization to form vinyl cyclopentenes and dihydrofurans, respectively. The use of equimolar amounts of dicobalt octacarbonyl and trimethyl phosphite affords optimum yields and improved selectivity for cycloisomerization vs alkene isomerization.
引用
收藏
页码：2409 / 2411
页数：3
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