Enantio‐, Regio‐ and Chemoselective Copper‐Catalyzed 1,2‐Hydroborylation of Acylsilanes
作者:Audric Nagy、Laurent Collard、Kiran Indukuri、Tom Leyssens、Olivier Riant
DOI:10.1002/chem.201901785
日期:——
Enantioselective synthesis of synthetically significant (α‐hydroxyallyl)silanes, (α‐hydroxyaryl)silanes, and (α‐hydroxyalkyl)silanes is reported. The present copper‐catalyzed 1,2‐selective hydroborylation of acylsilanes affords the aforementioned products in high yields and with high enantiomeric excesses. This robust and scalable additive‐free catalytic system relies on the use of low copper(II) acetate
报道了对合成重要的(α-羟基烯丙基)硅烷,(α-羟基芳基)硅烷和(α-羟基烷基)硅烷的对映选择性合成。目前的铜催化酰基硅烷的1,2-选择加氢硼化可以高收率和高对映体过量提供上述产品。这种强大且可扩展的无添加剂催化体系依赖于在市场上可买到且稳定的氢化物源存在下,在室温下使用低乙酸铜(II)和二膦配体的负载量。