A Convenient Approach to 4,7-Dihydrotetrazolo [5,1-<b><i>c</i></b>][1,2,4]triazine Synthesis
作者:Evgeny V. Shchegol'kov、Anna E. Ivanova、Yanina V. Burgart、Viktor I. Saloutin
DOI:10.1002/jhet.1068
日期:2013.2
convenient one-step procedure for the synthesis of 4,7-dihydrotetrazolo[5,1-c][1,2,4]triazines. In contrast to nonfluorinated analogs, 7-hydroxy-7-polyfluoroalkyl-4,7-dihydrotetrazolo[5,1-c][1,2,4]triazines undergo a ring-chain isomerism resulting from the cleavage at the C7―N7a bond. A distinctive feature of nonfluorinated 4,7-dihydrotetrazolo[5,1-c][1,2,4]triazines is the possibility to dehydration,
1,3-二羰基化合物与氯化四唑基-5重氮偶氮偶合用于开发方便的一步法合成4,7-二氢四唑[5,1- c ] [1,2,4]三嗪。与非氟化类似物相反,7-羟基-7-聚氟烷基-4,7-二氢四唑[5,1- c ] [1,2,4]三嗪经历了由C7-N7a键断裂导致的环链异构现象。非氟化4,7-二氢四唑[5,1- c ] [1,2,4]三嗪的一个显着特征是可能脱水,这是由于四唑环断裂并形成四唑而导致叠氮化物重排。 1,5- b ] [1,2,4]三嗪。