The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 10, 2019
Filed:
Jun. 15, 2016
Applicant:
Zhejiang Yongtai Technology Co., Ltd, Linhai Zone, Zhejiang, CN;
Inventors:
Hongming Shao, Zhejiang, CN;
Renbao He, Zhejiang, CN;
Yizhong Jin, Zhejiang, CN;
Lei Wang, Zhejiang, CN;
Assignee:
ZHEJIANG YONGTAI TECHNOLOGY CO., LTD., Linhai Zone, Zhejiang, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 405/04 (2006.01); C07D 231/14 (2006.01); C07C 251/12 (2006.01); C07C 251/14 (2006.01); C07D 231/12 (2006.01); C07C 221/00 (2006.01); C07C 225/14 (2006.01); C07D 251/30 (2006.01); C07C 49/255 (2006.01); C07D 295/125 (2006.01); C07B 33/00 (2006.01);
U.S. Cl.
CPC ...
C07D 405/04 (2013.01); C07C 49/255 (2013.01); C07C 221/00 (2013.01); C07C 225/14 (2013.01); C07C 251/12 (2013.01); C07C 251/14 (2013.01); C07D 231/12 (2013.01); C07D 231/14 (2013.01); C07D 251/30 (2013.01); C07D 295/125 (2013.01); C07B 33/00 (2013.01);
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.