摘要:
An organobismuth compound represented by the formula (1) wherein R1 and R2 are C1-C8 alkyl, aryl, substituted aryl or an aromatic heterocyclic group, R3 and R4 are each a hydrogen atom or C1-C8 alkyl, and R5 is aryl, substituted aryl, an aromatic heterocyclic group, acyl, amido, oxycarbonyl or cyano.