Reaction of substituted 2-cyano-4-oxo-alkanoic acid ethyl esters or 2-cyano-4-oxo-alkanonitriles with HCl gas in 2-propanol or concentrated HCl in 2-propanol for the dinitriles provides an efficient synthesis of substituted 2-chloropyrroles from readily available starting materials and reagents.
取代的2-
氰基-4-氧代链烷酸
乙酯或2-
氰基-4-氧代烷腈与2-
丙醇中的HCl气体或2-
丙醇中的浓HCl的反应为二腈提供了有效的合成取代的2-易得的原料和试剂中的
氯吡咯。