AbstractNitration of ethoxysanguinarine with equimolar potassium nitrate and sulfuric acid, followed by treatment with sodium hydroxide and methanol, gives 10‐nitromethoxysanguinarine. Successive hydrogenation, diazotization and methanolysis convert 10‐nitromethoxysanguinarine into bocconine.
Studies on the constituents of<i>bocconia cordata</i>. IV. Transformation of sanguinarine into bocconine
作者:Yaeko Konda、Mieko Urano、Yoshihiro Harigaya、Masayuki Onda
DOI:10.1002/jhet.5570280806
日期:1991.12
AbstractNitration of ethoxysanguinarine with equimolar potassium nitrate and sulfuric acid, followed by treatment with sodium hydroxide and methanol, gives 10‐nitromethoxysanguinarine. Successive hydrogenation, diazotization and methanolysis convert 10‐nitromethoxysanguinarine into bocconine.