265103-18-2Relevant articles and documents
Diels-Alder in Heterocyclic Synthesis: A Novel Synthesis of Cycloalkanopyridazinimine, 1,7-Alkanothienopyridazines and 1,8-Alkanophthalazines: New Ring System
Al-Omran, Fatima,Al-Awadhi, Nouria,Elassar, Abdelzaher A.,El-Khair, Adel A.
, p. 237 - 258 (2007/10/03)
Ylidenemalononitrile 1a,b readily coupled with diazonium salts to afford cycloalkano[c]pyridazinimine 3a-c. Compounds 3a,b reacted with sulfur element to give 5,5'-dithiobis(cycloalkanopyridazinone). 1,7-Propanothienopyridazine 4a,b were obtained by two methods. Compounds 4a,b undergoes cycloaddition reaction with electron poor olefins and acetylenedicarboxylate derivatives to afford 1,8-propanophthalazinones and 1,9-propanothiepinopyridazinones derivatives, respectively. Compounds 3a,b reacted with arylidenemalononitrile and enaminone derivative to afford 1,8-propanophthalazines.
