C3‐Cyanation of Pyridines: Constraints on Electrophiles and Determinants of Regioselectivity
作者:Ming Zhang、Qingyang Zhou、Heng Luo、Zi‐Lu Tang、Xiufang Xu、Xiao‐Chen Wang
DOI:10.1002/anie.202216894
日期:2023.2
C3-selective cyanation of pyridines was accomplished by a tandem process of borane-catalyzed pyridine hydroboration, substitution of the resulting dihydropyridine with a cyano electrophile, and finally oxidative aromatization. This method was suitable for use in late-stage cyanation of pyridine drugs.
吡啶的 C3 选择性氰化是通过硼烷催化的吡啶硼氢化、用氰基亲电试剂取代所得二氢吡啶、最后氧化芳构化的串联过程完成的。该方法适用于吡啶类药物的后期氰化反应。