New organocatalysts derived from tartaric and glyceric acids for direct aldol reactions
作者:Christopher D. Maycock、M. Rita Ventura
DOI:10.1016/j.tetasy.2012.08.008
日期:2012.9
of several new pyrrolidine based asymmetric organocatalysts derived from tartaric, glyceric acids and a pyrrolidine moiety is described with a study of their application in the development of an enantioselective aldol protocol. The influence of different proton donor groups, such as a primary hydroxyl or a carboxylic acid group, or their absence, on the efficiency of the organocatalyst was studied
描述了几种新的由酒石酸,甘油酸和吡咯烷部分衍生的基于吡咯烷的不对称有机催化剂的合成,并研究了它们在对映选择性羟醛方案的开发中的应用。研究了不同的质子供体基团,例如伯羟基或羧酸基团,或它们的不存在对有机催化剂效率的影响。发现酒石酸衍生的催化剂的构型和刚性的2,3-二缩丁烷的存在对醛醇缩合反应的立体选择性结果有很大的影响。