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Title:
METHOD FOR PREPARING PYRAZOLECARBOXYLIC ACID DERIVATIVE, AND INTERMEDIATE THEREOF
Document Type and Number:
WIPO Patent Application WO/2016/202254
Kind Code:
A1
Abstract:
Provided are a preparation method for synthesizing a pyrazolecarboxylic acid derivative of the following formula (I), which is suitable for industrial production, and an intermediate as shown by the following formula (II). The method is high in reaction yield in each step, low in waste gas and waste water and low in cost, and requires no special reaction equipment.

Inventors:
SHAO, Hongming (No.1, 5th Donghai Avenue Zhejiang Provincial Chemical and Medical Raw Materials Base Linhai Zone, Zhejiang 6, 317016, CN)
HE, Renbao (No.1, 5th Donghai Avenue Zhejiang Provincial Chemical and Medical Raw Materials Base Linhai Zone, Zhejiang 6, 317016, CN)
JIN, Yizhong (No.1, 5th Donghai Avenue Zhejiang Provincial Chemical and Medical Raw Materials Base Linhai Zone, Zhejiang 6, 317016, CN)
WANG, Lei (No.1, 5th Donghai Avenue Zhejiang Provincial Chemical and Medical Raw Materials Base Linhai Zone, Zhejiang 6, 317016, CN)
Application Number:
CN2016/085814
Publication Date:
December 22, 2016
Filing Date:
June 15, 2016
Export Citation:
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Assignee:
ZHEJIANG YONGTAI TECHNOLOGY CO., LTD. (No.1, 5th Donghai Avenue Zhejiang Provincial Chemical and Medical Raw Materials Base Linhai Zone, Zhejiang 6, 317016, CN)
International Classes:
C07D231/12; C07C49/255; C07C221/00; C07C225/14; C07D231/14; C07D251/30; C07D295/125
Domestic Patent References:
WO2015040352A12015-03-26
Foreign References:
CN105541716A2016-05-04
CN101796021A2010-08-04
CN104254523A2014-12-31
CN103787977A2014-05-14
Attorney, Agent or Firm:
JJS PATENT ATTORNEYS (LIU Ye, Room D Floor 18, Unit 2, Tower C, InDo Building, A48 Zhichun Road, Haidian District, Beijing 6, 100086, CN)
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