Title:
PHENOLIC HYDROXYL FLAVONE COMPOUND SEMISYNTHESIS METHOD AND IODINE RECOVERY METHOD
Document Type and Number:
WIPO Patent Application WO/2015/124114
Kind Code:
A1
Abstract:
Disclosed are a phenolic hydroxyl flavone compound semisynthesis method and iodine recovery method, relating to approaches A and B and iodine recovery. In approach A, flavone is dissolved in a pyridine solvent of ethylene glycol or glycerol, iodine is used as a dehydrogenation agent, and flavone is produced by heating and dehydrogenation. In approach B, as aluminum salts having valence value 3 are easy to form a complex with flavanone and flavanone or flavone does not easily dissolve in pyridine solvent containing alcohol, aluminum having valence value 3 is used to form a complex with flavanone. The complex thereof and the dehydrogenated product have high solubility in alcohol. Dealumination agents such as phosphoric acid is used to decompose the complex so as to obtain the flavone complex. As flavone does not dissolve in water, a product can be obtained by deposition and filtering.
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Inventors:
WEN YONGJU (CN)
Application Number:
PCT/CN2015/073239
Publication Date:
August 27, 2015
Filing Date:
February 21, 2015
Export Citation:
Assignee:
WEN YONGJU (CN)
International Classes:
C07D311/30; C01B7/14; C07H1/00; C07H17/07
Domestic Patent References:
| WO2010092592A2 | 2010-08-19 |
Foreign References:
| CN103772336A | 2014-05-07 | |||
| CN102070689A | 2011-05-25 | |||
| CN100371335C | 2008-02-27 | |||
| CN101089009A | 2007-12-19 |
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