Journal of the Korean Wood Science and Technology
- Volume 13 Issue 4
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- Pages.58-66
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- 1985
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- 1017-0715(pISSN)
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- 2233-7180(eISSN)
Studies on the Wood Extractivies (II) - Chemical Structures of Flavonoid Compound -
목재추출성분(木材抽出成分)에 관(關)한 연구(硏究) (II) - 플라보노이드화합물(化合物)의 화학구조(化學構造) -
- Hwang, Byung-Ho (College of Forestry, Kangweon National University) ;
- Choi, Hyong-Joo (College of Forestry, Kangweon National University) ;
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Yoon, Byung-Ho
(College of Forestry, Kangweon National University)
- Received : 1985.07.04
- Published : 1985.12.30
Abstract
In order to elucidate chemical structure of the wood extractives, softwood (Pinus koraiensis Sieb. et Zucc.) meal was extracted with 95% ethanol at room temperature for 72 hours. The extract was fractionated with organic solvents such as n-hexane, ether, ethylacetate, and acetone. From the n-hexane and ether soluble fraction of the wood extractives, four flavonoid compounds were isolated and identified as 5-hydroxy-7-methoxyflavone (I), 5-methoxy-7-hydroxyflavone (II), 5-hydroxy-7-methoxyflavanone (III), and 5-methoxy-7-hydroxyflavanone (IV) by UV, IR,
Keywords
- Pinus Korlliensis Sieb. et Aucc.;
- flavonoid compounds;
- UV;
- IR;
- $^1H$-NMR spectroscopy;
- MS spectrometry