A Convenient Synthesis of α-Substituted β,γ-Unsaturated Ketones and Esters via the Direct Addition of Substituted Allylic Zinc Reagents Prepared by Direct Insertion
作者:Paul Knochel、Christoph Sämann
DOI:10.1055/s-0033-1338415
日期:——
regioselectivity. A practical and convenient procedure for the synthesis of α-substituted β,γ-unsaturated ketones and esters has been developed. Substituted allylic zinc reagents, prepared via direct metal insertion in substituted allylic halides, react readily with a broad range of acid chlorides and chloroformates furnishing the corresponding α-substituted β,γ-unsaturated ketones and esters in high yield and perfect
献给Scott E.Denmark教授60岁生日 抽象 已经开发出一种实用且方便的合成α-取代的β,γ-不饱和酮和酯的方法。通过直接将金属插入取代的烯丙基卤化物中制备的取代的烯丙基锌试剂,可以轻松地与各种酰氯和氯甲酸酯反应,从而以高收率和完美的区域选择性提供相应的α-取代的β,γ-不饱和酮和酯。 已经开发出一种实用且方便的合成α-取代的β,γ-不饱和酮和酯的方法。通过直接将金属插入取代的烯丙基卤化物中制备的取代的烯丙基锌试剂,可以轻松地与各种酰氯和氯甲酸酯反应,从而以高收率和完美的区域选择性提供相应的α-取代的β,γ-不饱和酮和酯。