Synthesis of new, highly hindered C2-symmetric trans-(2S,5S)-disubstituted pyrrolidines
作者:Varinder K. Aggarwal、Franck Sandrinelli、Jonathan P.H. Charmant
DOI:10.1016/s0957-4166(02)00032-0
日期:2002.2
trans-(2S.5S)-(1,1-Diphenylmethyl)pyrrolidine has been prepared from the corresponding diester in four steps and 54% overall yield. Key steps involve the nucleophilic addition of an organomagnesium reagent to a carbonyl compound promoted by cerium(III) chloride and the reductive removal of benzylic trimethylsilyloxyl groups with Me3SiCl-Nal-MeCN and water. (C) 2002 Elsevier Science Ltd. All rights reserved.