A one-pot base-mediated synthesis of 5-oxopyrrolidine-2-carboxamides was developed. The reaction of Baylis–Hillman bromides 1, primary amines 2, isocyanides 3 and arylglyoxals 4 produced the 5-oxopyrrolidine-2-carboxamides 6 in good yields via a tandem Ugi condensation and intramolecular substitution at room temperature in the presence of Cs2CO3.
开发了一锅碱基介导的5-氧吡咯烷-2-羧酰胺的合成方法。通过串联Ugi缩合和在室温下在Cs 2 CO 3存在下进行分子内取代,Baylis-Hillman溴化物1,伯胺2,异氰化物3和芳基乙二醛4的反应以高收率产生了5-氧吡咯烷-2-羧酰胺6。。