STUDIES ON ISOCYANIDES AND RELATED COMPOUNDS - SYNTHESIS OF 3-SUBSTITUTED 2-ARYLSULFONYLAMINO-3,4-DIHYDRO-4-OXOQUINAZOLINES VIA A NOVEL THREE-COMPONENT REACTION

摘要

The reaction between isocyanides 1, methyl anthranilate (2) and chloramine T (3a) or chloramine B (3b) occurred easily in the presence of benzyltriethylammonium chloride to give the guanidines 4 which, upon heating, underwent a ring-closure reaction to afford the tide compounds 5. [References: 9]