Zhong Jialing, Pan Rihuang, Lin Xufeng
Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
RSC Adv. 2022 Jul 15;12(32):20499-20506. doi: 10.1039/d2ra03750e. eCollection 2022 Jul 14.
An enantioselective Friedel-Crafts reaction of cyclic α-diaryl -acyl imines with indolizines catalyzed by a chiral spirocyclic phosphoric acid has been developed. The asymmetric transformation proceeds smoothly to afford α-tetrasubstituted (3-indolizinyl) (diaryl)methanamines in good yields with up to 98% ee under mild conditions.
一种由手性螺环磷酸催化的环状α-二芳基酰基亚胺与中氮茚的对映选择性傅克反应已被开发出来。该不对称转化反应顺利进行,在温和条件下以良好的产率得到α-四取代(3-中氮茚基)(二芳基)甲胺,对映体过量值高达98%。