作者:Gerrit L'Abbe、Wim Dehaen
DOI:10.1016/s0040-4020(01)85837-3
日期:1988.1
xycarbonyltriazoles are capable of undergoing ring-degenerate rearrangements (19 → 20) when a strong electron-withdrawing substituent (e.g. p-nitrophenyl or o,p-dinitrophenyl) is located at the N-1 position. Whereas the unrearranged diazomethyltriazole 19a decomposes thermally in benzene to give the cycloheptatriene 21a, the rearranged diazo compound 20b yields the norcaradiene 22b. Several methods
当强吸电子取代基(例如对硝基苯基或邻,对二硝基苯基)位于N-1位时,5-重氮甲基-4-甲氧基羰基三唑能够发生环简并重排(19→20)。未重排的重氮甲基三唑19a在苯中热分解而得到环庚三烯21a,而重排的重氮化合物20b产生降冰片烯22b。描述了几种用于制备作为重氮甲基三唑的前体的醛11的方法。