Catalytic Asymmetric Addition of Alkylzinc and Functionalized Alkylzinc Reagents to Ketones
作者:Sang-Jin Jeon、Hongmei Li、Celina García、Lynne K. LaRochelle、Patrick J. Walsh
DOI:10.1021/jo048683e
日期:2005.1.1
We describe our full report of the catalytic asymmetric addition of simple and functionalized dialkylzinc reagents to a broad range of saturated ketones and enones. The functionalized organozinc reagents contain esters, silyl ethers, alkyl chlorides, and alkyl bromides. In general, the resulting tertiary alcohol products are isolated with high ee's. With some substrates, yields are low as a result
我们描述了将简单和功能化的二烷基锌试剂催化不对称添加到各种饱和酮和烯酮中的完整报告。官能化的有机锌试剂包含酯,甲硅烷基醚,烷基氯和烷基溴化物。通常,将所得的叔醇产物与高ee分离。对于某些底物,由于醛醇副产物的形成,收率低。大多数基材都经过添加,其良率高达91%。