HYDROBORATION OF ALKYNES WITH PINACOLBORANE CATALYZED BY HZRCP(2)CL

被引:238
作者
PEREIRA, S [1 ]
SREBNIK, M [1 ]
机构
[1] UNIV TOLEDO,DEPT CHEM,TOLEDO,OH 43606
关键词
D O I
10.1021/om00007a003
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Pinacolborane (1.05 equiv) hydroborates both terminal and internal alkynes, in the presence of 5 mol % zirconocene chloride hydride (HZrCp(2)Cl) at 25 degrees C, in excellent yields and with excellent regio- and stereoselectivity. Without HZrCp(2)Cl and under otherwise identical conditions, hydroboration proceeds to an extent of only 2-20%.
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页码:3127 / 3128
页数:2
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