作者:Jonathan T. Reeves、Daniel R. Fandrick、Zhulin Tan、Jinhua J. Song、Nathan K. Yee、Chris H. Senanayake
DOI:10.1016/j.tetlet.2009.04.022
日期:2009.6
Several diethyl 2-cumylmalonates underwent fragmentation and dimerization in PPA at elevated temperatures to give 1,1,3-trimethyl-3-arylindanes in good yields. The same products were obtained from 2-cumylmalonic acid, ethyl 2-cumylcyanoacetate, and 2-cumyl Meldrum’s acid. This represents the first example of an SN1/E1 ionization with diethyl malonate as the leaving group.
几种2-枯基丙二酸二乙酯在升高的温度下在PPA中进行裂解和二聚,从而以良好的收率得到1,1,3-三甲基-3-芳基茚满。相同的产物得自2-枯基丙二酸,2-枯基氰基乙酸乙酯和2-枯基梅德鲁姆酸。这代表了以丙二酸二乙酯作为离去基团进行S N 1 / E1电离的第一个例子。