method for the preparation of 2-amino-3-cyanoquinolines from readily available aryldiazonium salts, 2-aminoarylketones, and malononitrile via a cascade reaction is reported. This one-pot approach involves the in situ generation of an N-arylnitrilium intermediate from the direct reaction of aryldiazonium salts and malononitrile, which undergoes intermolecular amination, Knoevenagel condensation, and then
报道了一种通过级联反应从易得的芳基重氮盐,2-
氨基芳基酮和
丙二腈制备2-
氨基-
3-氰基喹啉的新方法。这种一锅法涉及从芳基重氮盐和
丙二腈的直接反应中原位生成N-芳基腈中间体,该中间体进行分子间胺化,Knoevenagel缩合,然后进行芳构化以中度到良好的收率得到所需化合物。该方法具有快速组装C2和C3功能化
喹啉的特点。