SCHEDULED MAINTENANCE
Phenol oxidation of 2-ethoxycarbonylnorprotosinomenine (II) afforded the proerythrinadienone (IV), which had a basic skeleton of the key intermediate in the biogenesis of Erythrina alkaloids.
T. Kametani, R. Charubala, M. Ihara, M. Koizumi and K. Fukumoto, J. Chem. Soc. D, 1971, 289 DOI: 10.1039/C29710000289
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