PREPARATION OF N-SUBSTITUTED AMINOMALEIMIDE COMPOUND

摘要

NEW MATERIAL:The compound of formulaI(R1 is 1-4C alkyl or halogen; R2 is phenyl substituted with 1-4C alkyl or alkoxy; R3 is 2-5C alkoxycarbonyl). EXAMPLE:1-(p-Chlorophenyl)-3-ethoxycarbonyl-4-(p-toluidino)maleimide. USE:Agricultural chemicals, pharmaceuticals and their intermediates. PROCESS:The compound of formulaIcan be prepared by reacting the carbamoylaminomaleimide compound of formula II with a tertiary amine in an inert organic solvent under essentially anhydrous conditions at 20-150 deg.C for 1-50hrs.