作者:Tanja Stach、Julia Dräger、Peter H. Huy
DOI:10.1021/acs.orglett.8b01023
日期:2018.5.18
A practical method for the nucleophilic substitution (SN) of alcohols furnishing alkyl chlorides, bromides, and iodides under stereochemical inversion in high catalytic efficacy is introduced. The fusion of diethylcyclopropenone as a simple Lewis base organocatalyst and benzoyl chloride as a reagent allows notable turnover numbers up to 100. Moreover, the use of plain acetyl chloride as a stoichiometric
介绍了一种在立体化学转化下以高催化效率对提供烷基氯化物,溴化物和碘化物的醇进行亲核取代(S N)的实用方法。二乙基环丙烯酮作为一种简单的路易斯碱有机催化剂与苯甲酰氯作为一种试剂的融合,可实现高达100的显着营业额。此外,首次证明了在转化型S N型转化中使用纯乙酰氯作为化学计量的促进剂。。操作上简单明了的协议展现出高水平的立体声选择性和可伸缩性,并且可以容忍各种功能组。