中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | retusin | 37816-19-6 | C16H12O5 | 284.268 |
The synthesis of naturally occurring 7,8-methylenedioxy-4′-methoxyisoflavone and 7,8-methylenedioxy-4′-methoxy-flavone from 2′-hydroxy-3′,4′-methylenedioxy-4-methoxychalcone via the intermediacy of 7,8-methylenedioxy-4′-methoxyflavanone using thallium(III) acetate and catalytic amount of perchloric acid is reported. The products flavanone and the flavone are new flavonoids characterised by spectral analysis.