When 1-(2-isocyanophenyl)pyrrole was treated with a catalytic amount of boron trifluoride, pyrrolo[1,2-a] quinoxaline was obtained almost quantitatively. The reaction in the presence of aldehydes or ketones gave the corresponding 4-(1-hydroxyalkyl)pyrrolo[1,2-a]quinoxalines in moderate to good isolated yields.
用催化量的
三氟化硼处理
1-(2-异氰基苯基)吡咯时,几乎可以定量得到
吡咯并[1,2-a]喹喔啉。在醛或酮存在下进行反应,可以得到相应的 4-(1-羟基烷基)
吡咯并[1,2-a]喹喔啉,分离产率为中等到良好。