Enolate-Based Regioselective Anti-Beckmann C–C Bond Cleavage of Ketones
作者:Tomáš Mašek、Ullrich Jahn
DOI:10.1021/acs.joc.1c01169
日期:2021.9.3
provides a direct and regioselective way of fragmenting ketones into esters and oximes or ω-hydroxyimino esters, respectively. A comprehensive study of the scope of this reaction with respect to ketone classes and alkyl nitrites is presented. Control over the site of cleavage is gained through regioselective enolate formation by various bases. Oxidation of kinetic enolates of unsymmetrical ketones leads to
of a practical and direct trifluoromethylthiolation reaction of unactivated aliphaticCH bonds employs a silver‐based reagent. The reaction is operationally simple, scalable, and proceeds under aqueous conditions in air. Furthermore, its broad scope and good functional‐group compatibility were demonstrated by applying this method to the selective trifluoromethylthiolation of natural products and natural‐product