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Erysodienone
Erysodienone is a key precursor in the biosynthesis of many ''Erythrina''-produced alkaloids. Early work was done by Derek Barton and co-workers to illustrate the biosynthetic pathways towards erythrina alkaloids. It was demonstrated that erysodienone could be synthesized from simple starting materials by a similar approach as its biosynthetic pathway, which led to the development of the biomimetic synthesis of erysodienone. Synthesis The biosynthesis of erysodienone involves a key step of Oxidative coupling, oxidative phenol coupling. Starting with S-norprotosinomenine precursor A, Pericyclic reaction, cyclization via oxidative phenol coupling forms intermediate B, which in turn can be rearranged to form intermediate C. Hydrogenation of C forms the diphenoquinone intermediate E. An Intramolecular reaction, intramolecular Michael addition reaction converts E to the final product, erysodienone. : A biomimetic synthesis route for erysodienone was developed based on a similar oxidat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Erythrina
''Erythrina'' is a genus of plants in the pea family, Fabaceae. It contains about 130 species, which are distributed in tropical and subtropical regions worldwide. They are trees, with the larger species growing up to in height. The generic name is derived from the Greek word , meaning "red", referring to the flower color of certain species. Names Particularly in horticulture, the name coral tree is used as a collective term for these plants. Flame tree is another vernacular name, but may refer to a number of unrelated plants as well. Many species of ''Erythrina'' have bright red flowers, and this may be the origin of the common name. However, the growth of the branches can resemble the shape of sea coral rather than the color of ''Corallium rubrum'' specifically, and this is an alternative source for the name. Other popular names, usually local and particular to distinct species, liken the flowers' red hues to those of a male chicken's wattles, and/or the flower shape to i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
