On triazoles<b>XXXVIII</b>. The reaction of isomeric 5-amino-3-morpholino-1<i>H</i>-1,2,4-triazolylcarbothiohydrazides with ortho esters
作者:József Reiter、József Barkóczy
DOI:10.1002/jhet.5570340531
日期:1997.9
The reaction of isomeric differently methylated 5-amino-3-morpholino-1H-1,2,4-triazolylcarbo-thiohydrazides with ortho esters were studied. Except of the case of triethyl orthoacetate instead of the expected [1,2,4]triazolo[1,5-d][1,2,4,6]tetrazepin-5(7H)-thione (6) derivatives different rearranged products such as 7, 8, 21, 23, 25, and 27 were obtained, derivatives 23 and 27 representing a novel ring
研究了异构化的不同甲基化的5-氨基-3-吗啉代-1 H -1,2,4-三唑基羰基硫代肼与原酸酯的反应。除了原乙酸三乙酯而不是预期的[1,2,4]三唑[1,5- d ] [1,2,4,6]四氮杂-5(7 H)-硫酮(6)衍生物不同,已重新排列获得了诸如7、8、21、23、25和27之类的产物,衍生物23和27代表了新型的环系统。对于重排产物的形成给出了可能的解释。