856306-83-7Relevant academic research and scientific papers
Base-catalyzed intramolecular heterocyclization of o-alkynylbenzhydrazides
Mikhailovskaya,Vasilevsky
experimental part, p. 632 - 636 (2011/02/17)
The reaction of methyl o-(2-R-ethynyl)benzoates with hydrazine affords either fused 4-R-methylphthalazin-1-ones or 2-amino-3-R-methylideneisoindolin-1- ones. The latter are on treatment with KOH undergo recyclization into the corresponding 4-R-methylphthalazin- 1-ones.
