Type 8 isoquinoliniumzwitterions were synthesised by the reaction of type 1 diketones or type 2 pyrylium salts with different 5-amino-3-Q-1H-1,2,4-triazoles. Spectroscopic and X-ray diffraction evidence was given for the zwitterion structure of the products obtained. The position of the negative charge on the 1,2,4-tiazolium ring was proved by comparison of the cmr and uv spectra of the products
On triazoles XLIX. Synthesis of 5,6-dihydrothiazolo[3,2-<i>b</i>]-[1,2,4]triazol-2-yl-, 6,7-dihydro-5<i>H</i>-[1,2,4]triazolo[5,1-<i>b</i>][1,3]thiazin-2-yl-, and 5,6,7,8-tetrahydro[1,2,4]triazolo[5,1-<i>b</i>] [1,3]thiazepin-2-yl-isoquinolinium salts
作者:Ibolya Prauda、József Reiter
DOI:10.1002/jhet.5570400612
日期:2003.11
5′-Mercapto-1′H-1,2,4-triazol-3′-yl-isoquinolinium salts (6) were synthesised by the reaction of ortho-acyl phenylacetones (2) or the corresponding pyrylium salts (3) and 5-amino-2,3-dihydro-1H-1,2,4-triazole-3-thione (5). Treatment of thioles 6 withα,ω-dibromoalkanes led to type 15, 16 and 17 isoquinolinium salts condensed with thiazole, thiazine and thiazepine rings. When 6 are reacted with dibromomethane
5'-巯基-1' ħ -1,2,4-三唑-3'-基-异喹啉盐(6)由反应合成邻-酰基phenylacetones (2)或相应的吡喃鎓盐(3)和5 -氨基-2,3-二氢-1 H -1,2,4-三唑-3-硫酮(5)。用α,ω-二溴代烷烃处理硫醇6导致与噻唑,噻嗪和噻氮平环缩合的15、16和17型异喹啉鎓盐。当6与二溴甲烷(10)反应时,获得11型二聚结构。