ChemInform Abstract: Synthesis of 4-(Tributylstannyl)pyridazines by Inverse Electron-Demand Diels-Alder Reaction of 1,2,4,5-Tetrazines with Tributylstannylacetylenes

Inverse electron-demand Diels-Alder reaction of 3,6-disubstituted 1,2,4,5-tetrazines with tributylstannylacetylenes containing a substituent gave 4-(tributylstannyl)pyridazines. Particularly, dimethyl 1,2,4,5-tetrazine-3,6-dicarboxylate gave 4-(tributylstannyl)pyridazines in good yields. Substitution reaction of 3,6-diphenyl-4-(tributylstannyl)pyridazine was also described