The synthesis of 11<i>H</i>-1,2,4-triazolo[4,3-<i>b</i>]pyridazino[4,5-<i>b</i>]indoles,11<i>H</i>-tetrazolo[4,5-<i>b</i>]pyridazino[4,5-<i>b</i>]indoles and 1,2,4-triazolo[3,4-<i>f</i>]-1,2,4-triazino[4,5-<i>a</i>]indoles
作者:A. Monge Vega、I. Aldana、M. M. Rabbani、E. Fernandez-Alvarez
DOI:10.1002/jhet.5570170116
日期:1980.1
This paper describes the synthesis of the previously unknown 11H-1,2,4-triazolo[4,3-b]pyridazino[4,5-b]indoles (2) and 11H-tetrazolo[4,5-b]pyridazino[4,5-b]indoles (3) from 4-hydrazino-5H-pyridazino[4,5-b]indoles (1), as well as the synthesis of 1,2,4-triazolo[3,4-f]-1,2,4-triazino-[4,5-a]indoles (10) from 2-indolecarbohydrazide (4). Compounds 2 were obtained by acylation of compounds 1, followed of
本文描述了以前未知的11 H -1,2,4-三唑并[4,3- b ]吡嗪并[4,5- b ]吲哚(2)和11 H-四唑并[4,5- b ]的合成哒嗪并[4,5- b〕吲哚(3)由4-肼基-5- ħ -pyridazino并[4,5- b ]吲哚(1) ,以及1,2,4-三唑的合成[3,4 - ˚F ] -1,2,4- triazino- [4,5-一个〕吲哚(10)由2- indolecarbohydrazide (4) 。化合物2是由化合物的酰化得到1然后,通过用亚硝酸处理化合物1,进行热环化和化合物3。化合物4与甲酸或原甲酸乙酯的反应得到1,2-二氢-1-氧代-1,2,4,三嗪基[4,5- a ]吲哚(6)。用三氯氧化磷或五硫化二磷然后用肼处理该最后的化合物,得到1-肼基-1,2,4-三嗪基-[4,5- a ]吲哚(9)。将最后一种化合物酰化,然后环化,得到化合物10。所有化合物均通过元素分析,IR和1