Catalytic Atropenantioselective Heteroannulation between Isocyanoacetates and Alkynyl Ketones: Synthesis of Enantioenriched Axially Chiral 3-Arylpyrroles
作者:Sheng-Cai Zheng、Qian Wang、Jieping Zhu
DOI:10.1002/anie.201812654
日期:2019.1.28
We report herein the first examples of catalytic enantioselective synthesis of axiallychiral 3‐arylpyrroles. Reaction of α‐isocyanoacetates with β‐aryl‐α,β‐alkynic ketones in the presence of silver oxide and a phosphine ligand derived from Cinchona alkaloid occurred chemoselectively to afford enantioenriched 3‐arylpyrroles in high yields with excellent enantiomeric excesses. The pyrrole ring was constructed