Synthesis and reactivity of pyrrolo[1,2-α]quinoxalines. Crystal structure and AM1 calculation
作者:Yves Blache、Alain Gueiffier、Ahmed Elhakmaoui、Henri Viols、Jean-Pierre Chapat、Olivier Chavignon、Jean-Claude Teulade、Gérard Grassy、Gérard Dauphin、Alain Carpy
DOI:10.1002/jhet.5570320437
日期:1995.7
ethyl bromopyruvate giving 2-substituted pyrrolo[1,2-α]quinoxalines. The yield of the condensation depends on the functionalization of starting materials, and optimization is obtained with 2-dimethylamino-3-methylquinoxaline (1c). Reactivity of the resulting pyrrolo[1,2-a]-quinoxalines was investigated and supported by a theoretical approach (AM1 calculation performed with the MOPAC 6.0 software). X-ray
2-甲基喹喔啉与溴丙酮酸乙酯反应,得到2-取代的吡咯并[1,2-α]喹喔啉。缩合反应的收率取决于原料的功能化程度,使用2-二甲基氨基-3-甲基喹喔啉(1c)可获得最佳的收率。研究了所得吡咯并[1,2-a]-喹喔啉的反应性,并通过一种理论方法(使用MOPAC 6.0软件进行AM1计算)进行了支持。X射线分析了5个在单斜晶系系统空间群P2 1 / n中结晶的晶体,其中a = 9.095(1),b = 8.972(1),c = 17.749(3)A,β= 96.56(1)° ,也有报道。