Reaktionen aromatischer Nitrile mit Dicarbons�uredichloriden
摘要:
Dicarbonic acid dichlorides react with aromatic nitriles in the presence of SbCl5 to give dicationic bis(1,3,5-oxadiazinium) salts 1. Reaction of 1 with ammonia or hydrazine yields derivatives of bis(1,3,5-triazine) (2) or bis(1,2,4-triazole) (3).