Double rearrangement in the pyrrolidine-1,2-oxide system leading to pentasubstituted pyrroles.
作者:André Dehnel、Jolanta M Kanabus-Kaminska
DOI:10.1016/s0040-4039(00)96417-7
日期:1987.1
Acid catalyzed double rearrangement of the ethyl 6-oxa-2,2, 4,4-tetramethyl-1-azabicyclo[3,1,0]hexane-3-carboxylate leading to ethyl 1,2,4,5-tetramethyl-pyrrole-3-carboxylate is proposed on the basis of identification of the intermediate ethyl 5-hydroxy-1,2,4,4-tetramethylpyrroline-3-carboxylate.
酸催化6-氧杂-2,2,4,4-四甲基-1-氮杂双环[3,1,0]己烷-3-羧酸乙酯的双重排生成1,2,4,5-四甲基吡咯乙酯在鉴定中间体5-羟基-1,2,4,4-四甲基吡咯啉-3-羧酸乙酯的基础上提出了-3-羧酸酯。