Reported herein is a photochemical cascade process that combines the excited-state and ground-state reactivity of chiral organocatalytic intermediates. This strategy directly converts racemic cyclopropanols and α,β-unsaturated aldehydes into stereochemically dense cyclopentanols with exquisite stereoselectivity. Mechanistic investigations have enabled elucidating the origin of the stereoconvergence
本文报道的是一种光
化学级联方法,其结合了手性有机催化中间体的激发态和基态反应性。该策略将外消旋的
环丙醇和α,β-不饱和醛直接转化为立体
化学致密的
环戊醇,并具有出色的立体选择性。机理研究使阐明立体收敛的起源受到了动力学解析过程的支配。