Studies on the chemical transformations
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Shin-Ichi Nagai; Satoshi Takemoto; Taisei Ueda; Kanako Mizutani; Yasuhiro Uozumi
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Article
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2001
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Journal of Heterocyclic Chemistry
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English
⚖ 57 KB
## Abstract [1]Benzofuro[2,3‐__d__]pyridazines fused with 1,2,4‐triazole (**6** and **7**), 1,2,4‐triazine (**8–10**) and 1,2,4‐tri‐azepine (12) were prepared by the ring closure of 4‐hydrazino‐[1]benzofuro[2,3‐__d__]pyridazine (**5**), derived from naturally occurring rotenone. Compounds (**la** a