Direct and Stereoselective Alkylation of Nitro Derivatives with Activated Alcohols in Trifluoroethanol
作者:Diego Petruzziello、Andrea Gualandi、Stefano Grilli、Pier Giorgio Cozzi
DOI:10.1002/ejoc.201201345
日期:2012.12
benzylic, benzhydrylic, and propargylic alcohols in trifluoroethanol. A variety of different nitroalkanes bearing functional groups can be used in this SN1-type reaction to afford the desired products in quantitative yields. Different chiral nitro derivatives were submitted to this highly diastereoselective alkylation reaction with selected benzhydrols. A new, effective, and chiral pyrrolidine organocatalyst
在此,我们公开了在三氟乙醇中使用苄醇、二苯甲基醇和炔丙基醇对硝基烷烃进行简单、有效和实用的烷基化反应。多种不同的带有官能团的硝基烷烃可用于这种 SN1 型反应,以定量收率提供所需的产物。不同的手性硝基衍生物与选定的二苯甲醇进行这种高度非对映选择性的烷基化反应。使用该方法制备了一种新的、有效的、手性的吡咯烷有机催化剂。