Title:
METHOD FOR PREPARING UNSATURATED KETONE
Document Type and Number:
WIPO Patent Application WO/2020/140414
Kind Code:
A1
Abstract:
Disclosed is a method for preparing an unsaturated ketone. In the method, an unsaturated alcohol and 2-alkoxy propylene are used as raw materials, and a Saucy-Marbet reaction is performed by modifying an acidic resin in a fixed bed, so as to synthesize an unsaturated ketone with high selectivity and high yield. The method uses a modified acidic resin as a catalyst to compensate for the poor catalytic effect of a conventional acidic resin, and uses a fixed bed reactor for the catalytic reaction, so that separation of the catalyst and a reaction product can be achieved before and after the reaction, thereby avoiding device corrosion and adverse effects on subsequent industrial treatment caused by the presence of a large amount of an acid. The method is an economical and efficient synthesis method.
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Inventors:
HUANG GAOFENG (CN)
ZHAO HE (CN)
ZHAO DESHEN (CN)
YAN HONGYUE (CN)
ZHAO HE (CN)
ZHAO DESHEN (CN)
YAN HONGYUE (CN)
Application Number:
PCT/CN2019/095192
Publication Date:
July 09, 2020
Filing Date:
July 09, 2019
Export Citation:
Assignee:
ZHEJIANG NHU CO LTD (CN)
SHANDONG NHU VITAMIN CO LTD (CN)
SHANDONG NHU PHARMACEUTICAL CO LTD (CN)
SHANDONG NHU VITAMIN CO LTD (CN)
SHANDONG NHU PHARMACEUTICAL CO LTD (CN)
International Classes:
C07C45/51; B01J31/08; C07C45/62; C07C49/04; C07C49/203
Domestic Patent References:
| WO2008092655A1 | 2008-08-07 |
Foreign References:
| CN109503342A | 2019-03-22 | |||
| CN102197014A | 2011-09-21 | |||
| CN1217316A | 1999-05-26 | |||
| US20020169342A1 | 2002-11-14 |
Other References:
FRAUCHIGER, SIMON ET AL.: "Saucy-Marbet Ketonization in a Continuous Fixed-Bed Catalytic Reactor", APPLIED CATALYSIS A: GENERAL, vol. 253, no. 1, 31 July 2003 (2003-07-31), pages 33 - 48, XP004467578, ISSN: 0926-860X
Attorney, Agent or Firm:
HANGZHOU ZHIXIAN PATENT AGENCY (CN)
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