241. Piperettine from Piper nigrum; its isolation, identification, and synthesis

Journal of the Chemical Society (Resumed)
1950.0

Abstract

After the removal of piperine from extracts of Piper nigrum a second component, Pipereftine, has been isolated. Hydrolysis of piperettine, which is yellow, gives a mixture of piperidine and a yellow acid, piperettic acid, which has been identified by its reactions and by synthesis as 7-(3 : 4-methyZenedioxyphenyZ)hepta-2 : 4 : 6-trienoic acid * (I ; R = H). Piperettine is thus the piperidide (11). a conclusion confirmed by synthesis.

DOI： 10.1039/JR9500001177

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