Rhodium catalysed enantioselective hydroboration of alkenylboronic esters with catecholborane

被引:28
作者
Wiesauer, C [1 ]
Weissensteiner, W [1 ]
机构
[1] UNIV VIENNA,INST ORGAN CHEM,A-1090 VIENNA,AUSTRIA
关键词
D O I
10.1016/0957-4166(95)00407-6
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Alkenylboronic esters such as (E)-2-(2-phenylethenyl)-1,3,2-dioxaborolane were subjected to catalytic hydroboration with catecholborane and with use of neutral and cationic rhodium complexes modified by various diphosphine ligands. The resulting 1,2-diboryl intermediate was oxidised with alkaline hydrogen peroxide to give the corresponding 1,2-diol with enantioselectivities up to 79 % e.e.
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页码:5 / 8
页数:4
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