Unusual bicyclic endoperoxides containing pyridazine ring: Reaction of unsaturated bicyclic endoperoxides with dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylate
作者:Metin Balci、Nurullah Saraçoğlu、Abdullah Menzek
DOI:10.1016/0040-4039(95)02280-5
日期:1996.2
Unsaturated bicyclicendoperoxides were reacted with dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylate. The Diels-Alder addition products 6–10 were isolated and characterized. The primary formed addition products gave the corresponding 1,4-dihydropyridazine derivatives upon extrusion of nitrogen. Pyridazine endoperoxides were synthesized by oxidation of the corresponding 1,4-dihydropyridazine derivatives