
doi: 10.1248/cpb.27.981
Heating of pyrrolizidine N-oxide (V) with an aqueous solution of tartaric acid containing ferric nitrate gave Δ1 (8)-dehydropyrrolizidine (VI), which, on treatment with water in the presence of methyl iodide, gave 1-methyl-perhydroazocin-5-one (IX).
IR
IR
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