An expeditious access of 2,5â²-dioxo-5â²,6â²,7â²,8â²-tetrahydro-1â²H-spiro[indoline-3,4â²-quinoline]-3â²-carboxylate by reaction of isatin, ethyl cyanoacetate and enaminone in water
Keywords: اتیل سینوسی استات; Isatin; Enaminone; Ethyl cyanoacetate; Spirooxindole; Multicomponent reaction;