2-Dicyanomethylidene-3-ethoxymethylidene-2,3-dihydroindole in the synthesis of fused tri- and tetracyclic systems
作者:O. B. Smirnova、T. V. Golovko、L. M. Alekseeva、V. V. Chernyshev、V. G. Granik
DOI:10.1007/s11172-010-0059-6
日期:2010.1
diethyl acetal were studied. The reactions of 2,3-diamino-4-cyanopyrido[4,3-b]indole with benzaldehyde, ethyl acetoacetate, and acetylacetone were investigated. First representatives of new heterocyclic systems, viz., [1,2,4]triazolo[1’,5’:1,6]-pyrido[4,3-b]indole and pyrazolo[1’,5’:1,2]pyrido[4,3-b]indole, were synthesized. The structure of ethyl 6-cyano-5-[(E)-(dimethylamino)methylideneamino]-2-methyl-7H-pyrazolo-[1’
2-二氰基亚甲基-3-乙氧基亚甲基-2,3-二氢吲哚与水合肼和苯肼反应得到2,3-二氨基-4-氰基吡啶并[4,3-b]吲哚和3-氨基-2-苯胺基-4-分别研究了氰基吡啶并[4,3-b]吲哚,并研究了后者与二甲基甲酰胺二乙缩醛的反应。研究了 2,3-二氨基-4-氰基吡啶并[4,3-b]吲哚与苯甲醛、乙酰乙酸乙酯和乙酰丙酮的反应。新杂环系统的第一个代表,即[1,2,4]三唑并[1',5':1,6]-吡啶并[4,3-b]吲哚和吡唑并[1',5':1,合成了2]吡啶并[4,3-b]吲哚。乙基6-氰基-5-[(E)-(二甲氨基)亚甲基氨基]-2-甲基-7H-吡唑并-[1',5':1,2]吡啶并[4,3-b]吲哚-的结构1-羧酸盐是通过 X 射线衍射确定的。