Cyclocondensation reaction of heterocyclic carbonyl compounds . The direction of competitive cyclocondensation between carbonyl groups of 6-azauracile and 1,2-dihydro-quinoxalin-2-one cycles
作者:Roman Buchtík、Jan Hlaváč、Jan Slouka、Petr Fryčák
DOI:10.1002/jhet.5570410419
日期:2004.7
In the article the study of cyclocondensation of 3-[2-amino-3-(3,5-dioxo-2,3,4,5-tetrahydro[1,2,4]-triazme-6-yl)phenyl]-2,3-dihydro-quinoxalin-2-one 5 is described and it was found, that the reaction does not proceed by both possible directions, but only cyclization with the carbonyl group of 6-azauracile cycle proceeds. The 6-(3-oxo-3,4-dihydro-quinoxaline-2-yl)-4H-2,3-dihydro[1,2,4]triazino[5,6-b]indol-3-one
在本文中,研究了3- [2-氨基-3-(3,5-二氧代-2,3,4,5-四氢[1,2,4]-三嗪-6-基)苯基]-的环缩合研究描述了2,3-二氢-喹喔啉-2-酮5,发现该反应没有在两个可能的方向上进行,而仅进行了带有6-氮嘧啶环的羰基的环化反应。6-(3-氧代-3,4-二氢-喹喔啉-2-基)-4 H -2,3-二氢[1,2,4]三嗪[ 5,6 - b ]吲哚-3-一6是这样形成的。通过以下事实证实了该环缩合的过程:上述产物6与通过7-(6-氮杂嘧啶-5-基)isatine 8与7-(6-氮杂嘧啶-5-基)的缩合明确制备的异构体化合物7完全不同。邻苯二胺。