A convenient preparative approach for synthesis of various 1,5-diaryl-3-(arylamino)-1H-pyrrol-2(5H)-ones promoted by 1-butyl-1-methylpyrrolidinium hydrogen sulfate is developed which involves cyclocondensation of aldehydes with amines and ethyl pyruvate under ambient conditions. A convenient preparative approach for synthesis of various 1,5-diaryl-3-(arylamino)-1H-pyrrol-2(5H)-ones promoted by 1-butyl-1-methylpyrrolidinium hydrogen sulfate is developed which involves cyclocondensation of aldehydes with amines and ethyl pyruvate under ambient conditions.
开发了一种便捷的制备方法,用于合成各种1,5-二芳基-3-(芳基
氨基)-1H-
吡咯-2(5H)-酮,这一方法由1-丁基-
1-甲基吡咯烷铵氢
磺酸促进,涉及醛与胺和乙基
丙酮在常温条件下的环缩合反应。