Title:
METHOD FOR PROMOTING METHYLATION OF LIGNIN MODEL COMPOUND BENZYL ALCOHOL BY APPLYING MICROWAVES
Document Type and Number:
WIPO Patent Application WO/2018/000734
Kind Code:
A1
Abstract:
Disclosed is a method for promoting methylation of a lignin model compound benzyl alcohol by applying microwaves. The method includes adding 1 part by weight of a lignin model compound containing a benzyl alcohol and 0.005-3 parts by weight of a catalyst to a microwave reaction tank, and reacting same for 1-60 min at a temperature of 100ºC-200ºC with 20-800 parts by weight of methyl alcohol as a methylation reagent, wherein the microwave power is set at 50-1000 W and the microwave frequency at 2450 MHz ± 15 Hz; and immediately quenching the reaction with cold water after the completion of the reaction, extracting the reaction liquid with ethyl acetate, removing the organic phase and spin-drying same, and performing chromatographic separation and purification on a crude product through a silica gel column so as to obtain a methylated product. By means of the method, various lignin model compound benzyl alcohols can be methylated in a green, simple, safe and efficient way.
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Inventors:
QIU XUEQING (CN)
OUYANG XINPING (CN)
ZHU GUODIAN (CN)
CHEN CHENG (CN)
JIN DONGXUE (CN)
ZHAO YING (CN)
OUYANG XINPING (CN)
ZHU GUODIAN (CN)
CHEN CHENG (CN)
JIN DONGXUE (CN)
ZHAO YING (CN)
Application Number:
PCT/CN2016/109054
Publication Date:
January 04, 2018
Filing Date:
December 08, 2016
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
C07C41/09; C07C43/205; C07C43/23
Foreign References:
| US6362378B1 | 2002-03-26 | |||
| CN104326883A | 2015-02-04 | |||
| CN104250206A | 2014-12-31 |
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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