Effect of InCl 3 on the addition of Grignard reagents to α,β-unsaturated carbonyl compounds
作者:Brian G. Kelly、Declan G. Gilheany
DOI:10.1016/s0040-4039(01)02263-8
日期:2002.1
Control of 1,2- versus 1,4-addition of organometallic reagents to enones remains a long-standing problem. There is still no satisfactory 1,2-directing agent comparable to the 1,4-directing effect of copper salts. We report that the presence of just 5 mol% indium(III) chloride can significantly alter the amount of 1,2-product formed in these reactions.
控制有机金属试剂向烯酮的1,2-和1,4-加成仍然是一个长期存在的问题。仍然没有令人满意的与铜盐的1,4-定向作用相当的1,2-定向剂。我们报告说,仅5摩尔%的氯化铟(III)的存在可以显着改变这些反应中形成的1,2-产物的量。