摘要
The rhodium-catalyzed enantioselective C-H iodination of 1-aryl isoquinolines under mild conditions is disclosed. Direct C-H iodination of 1-aryl isoquinolines with N-iodosuccinimide (NIS) catalyzed by chiral CpRh(III) complexes afforded a series of axially chiral biaryl iodides in excellent yields and enantioselectivity (up to 99% yield and 97% ee). Furthermore, the atroposelective C-H bromination and chlorination reactions were also compatible. Notably, the axially chiral biaryl iodides could be easily transformed to QUINAP-type and N,N-type chiral ligands.
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单位中国科学院