Cyclisation of 2-(2-aminophenyl)quinazolin-4(3H)-one reexamined: formation of isomeric angular fused quinazolinoquinazolinones and their spectroscopic identification
作者:Somepalli Venkateswarlu、Meka Satyanarayana、Gandrothu Narasimha Murthy、Vidavalur Siddaiah
DOI:10.1016/j.tetlet.2012.03.055
日期:2012.5
3-b]quinazolin-8-one and 6-alkyl-(13H)-quinazolino[3,4-a]quinazolin-13-one, respectively was described for the first time. The differences in the IR and carbon NMR data of these isomeric fused quinazolinoquinazolinones afford a useful method for distinguishing between the two series.
2-(2-氨基苯基)喹唑啉-4(3 H)-one在N 3上和在N 1上的环化导致6-烷基-(8 H)-quinazolino [4,3- b ] quinazolin-8-首次描述了一个和一个6-烷基-(13 H)-喹唑啉代[3,4- a ]喹唑啉-13-。这些异构体稠合的喹唑啉基喹唑啉酮的IR和碳NMR数据差异为区分这两个系列提供了一种有用的方法。