
Tetrahedron Letters p. 5949 - 5952 (1991)
Update date:2022-07-29
Topics:
Baumann, Luzian
Seitz, Guenther
Reaction of 1,2,4,5-tetrazine 1 with cyclooctatetraene 2 leads to cycloocta[d]-pyridazine 4 in high yield. 4, on heating in toluene, quantitatively rearranges to barreleno[d]pyridazines 8 and 9, respectively.
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