Title:
NEW PROCESS FOR MANUFACTURE OF PYRAZOLES OR PYRIMIDONES
Document Type and Number:
WIPO Patent Application WO/2020/093715
Kind Code:
A1
Abstract:
In one aspect relates to the use of an amine compound in a process for the manufacture of a fluorinated or non-fluorinated 5-or 6-membered heterocyclic compound containing two nitrogen atoms in the ring system of the said compound, preferably of pyrazoles or pyrimidones.Also relates to a process for the manufacture of pyrazoles or pyrimidones, which may be fluorinated or may not be fluorinated. Especially, relates to process for the manufacture of fluorinatedpyrazoles or pyrimidoes and in particular relates to process for the manufacture of such fluorinatedpyrazolesor pyrimidones, which each are very important building blocks for pharmaceutical and agro-applications. For example, the fungicides are Bixafen, Fluxapyroxad, Fluindapyr, Sedaxane, Isopyrazam and Benzovindifupyr strongly depend on such fluorinatedpyrazoles as key building blocks, or for Florasulam and Clorasulam-methyl, respectively.
Inventors:
CUI WEILONG (CN)
DU HONGJUN (CN)
WU WENTING (CN)
DU HONGJUN (CN)
WU WENTING (CN)
Application Number:
PCT/CN2019/094375
Publication Date:
May 14, 2020
Filing Date:
July 02, 2019
Export Citation:
Assignee:
FUJIAN YONGJING TECH CO LTD (CN)
International Classes:
C07D403/04; C07D231/12
Foreign References:
| CN106317025A | 2017-01-11 | |||
| CN101824000A | 2010-09-08 |
Other References:
WILES CHARLOTTE ET AL.: "The Application of Microreactor Technology for the Synthesis of 1, 2-Azoles", ORGANIC PROCESS RESEARCH & DEVELOPMENT, vol. 8, no. 1, 20 November 2003 (2003-11-20), pages 28 - 32
ZHONG PING ET AL.: "Application of Microreactor Technology in Organic Synthesis", CHEMICAL REAGENT, vol. 29, no. 6, 30 June 2007 (2007-06-30), pages 339 - 344
ZHONG PING ET AL.: "Application of Microreactor Technology in Organic Synthesis", CHEMICAL REAGENT, vol. 29, no. 6, 30 June 2007 (2007-06-30), pages 339 - 344
Attorney, Agent or Firm:
FUZHOU GEMHOPE PATENT AGENCY (CN)
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