CuBr and ZnI2 have been developed as catalysts or subcatalysts for the efficient asymmetric synthesis of axially chiral allenols with up to 97% ee from readily available propargylic alcohols, aliphatic or aromatic aldehyde, pyrrolidine, and commerically available ligands. The alcohol unit in the terminal alkynes plays a very important role for ensuring high enantioselectivity via coordination.
已经开发了CuBr和ZnI 2作为催化剂或子催化剂,用于从不易获得的炔
丙醇,脂族或芳族醛,
吡咯烷和市售
配体中高效不对称合成轴对称手性烯醇,其中ee高达97%。末端
炔烃中的醇单元对于通过配位确保高对映选择性起着非常重要的作用。