Title:
PROCESS FOR THE PREPARATION OF 4, 1', 6'-TRICHLORO-4, 1', 6'TRIDEOXYGALACTOSUCROSE
Document Type and Number:
WIPO Patent Application WO/2004/104016
Kind Code:
A1
Abstract:
A process for the preparation of 4, 1', 6'- trichoro-4, 1', 6'-trideoxygalactosucrose is characterized by that raw material sucrose is added into N,N-dimethylformamide, and transesterification is conducted between sucrose and ethyl acetate in the presence of a sulfate solid acid catalyst or a sulfate solid acid catalyst absorbed on a polymer support, and then sucrose 6-acylate is produced; the sucrose 6-acylate is chlorinatied and conducted alcoholysis reaction and yielded the 4, 1', 6'- trichoro-4, 1', 6'-trideoxygalactosucrose. Its advantages are simple process, high pure product and low cost and it is very suitable for industrial production.
Inventors:
WANG SANYONG (CN)
LI CHUNRONG (CN)
LI YE (CN)
CAO GANXING (CN)
HUANG WEN (CN)
LI CHUNRONG (CN)
LI YE (CN)
CAO GANXING (CN)
HUANG WEN (CN)
Application Number:
PCT/CN2003/000655
Publication Date:
December 02, 2004
Filing Date:
August 11, 2003
Export Citation:
Assignee:
FOOD INDUSTRY INST OF GUANGDON (CN)
WANG SANYONG (CN)
LI CHUNRONG (CN)
LI YE (CN)
CAO GANXING (CN)
HUANG WEN (CN)
WANG SANYONG (CN)
LI CHUNRONG (CN)
LI YE (CN)
CAO GANXING (CN)
HUANG WEN (CN)
International Classes:
C07H1/00; C07H3/04; C07H3/08; C07H5/02; C07H13/04; (IPC1-7): C07H5/02; C07H1/00; C07H13/04
Foreign References:
| US4380476A | 1983-04-19 | |||
| US4801700A | 1989-01-31 | |||
| US4889928A | 1989-12-26 | |||
| US4950746A | 1990-08-21 | |||
| US4980463A | 1990-12-25 | |||
| US5023329A | 1991-06-11 | |||
| US5449772A | 1995-09-12 |
Attorney, Agent or Firm:
GUANGZHOU ZHIYOU PATENT AGENCY CO.,LTD. (7F Building NO.60, 100 Xianlie Rd. Centra, Guangzhou Guangdong 0, CN)
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