Herein, a method for the isomerization of ketones in a manner akin to the chain-walking reaction of alkenes is described. Widely available and inexpensive pyrrolidine and elemental sulfur are deployed as catalysts to achieve this reversible transformation. Key to the utility of this approach was the elucidation of a stereochemical model to determine the thermodynamically favored product of the reaction
本文描述了一种以类似于烯烃链行走反应的方式进行酮异构化的方法。使用广泛且廉价的
吡咯烷和元素
硫作为催化剂来实现这种可逆转化。这种方法实用性的关键是阐明立体
化学模型,以确定热力学上有利的反应产物和观察到的动力学选择性。凭借我们的酮链行走过程的独特选择性特征,各种类
固醇的异构化被证明可以快速获得具有“非自然”氧化模式的新型类
固醇。