作者:A. Alemagna、C. Baldoli、E. Licandro、S. Maiorana、A. Papagni
DOI:10.1016/s0040-4020(01)82090-1
日期:——
The coupling of diazonium salts from isatic acids with alkoxycarbonylmethylenephosphoranes leads directly to 3-oxo-indazolin-2-yl-(alkoxycarbonyl) methylenetriphenylphosphoranes, while coupling with methyl 2-chloroacetacetate gives 2-[2-(methoxycarbonyl-chloromethyliden)hydrazino] -phenyl-glyoxylic acid.
将重氮盐与山atic酸与烷氧基羰基亚甲基膦酸酯偶联可直接生成3-氧代-吲唑啉-2-基-(烷氧基羰基)亚甲基三苯基膦酸酯,而与2-氯乙酰乙酸甲酯偶联可生成2- [2-(2-(甲氧基羰基-氯甲基亚甲基)肼基]-苯基-乙醛酸。