- 作者: 陳阿煌
- 作者服務機構: Department of Chemistry, National Kaohsiung Normal University, Kaohsiung 802, Taiwan, R.O.C.
- 中文摘要: Photolysis of flavone (4) with the electron-donating amines including triethylamine or 2-(N,N-dimethylamino)ethanol in acetonitrile, benzene or methylene dichloride can easily afford two hydrodimers of 2,2¢-biflavanone(racemate) (5a) and 2,2¢-biflavanone(meso) (5b) and one reductive product of flavanone (6). Their yields were dependent on the molar ratios of substrate to amine, the kinds of amines, the solvents used and the irradiation sources. Higher yields were afforded 2,2¢-biflavanone(racemate) (5a), 2,2¢-biflavanone(meso) (5b) and flavanone (6) (30.0%, 20.9% and 15.8%, respectively) in the reaction condition of 1/2 molar ratio of flavone (4) to triethylamine in acetontrile with fourteen hours of irradiation.
- 英文摘要: --
- 中文關鍵字: Flavone; Flavanone; Biflavanones; Photolysis; Hydrodimerization.
- 英文關鍵字: Flavone; Flavanone; Biflavanones; Photolysis; Hydrodimerization.