Process for the preparation of pyrazole derivatives

US9650345B2 · kind B2 · utility

Assignee

• SRF LIMITED · IN

Inventors

• Srikant Dakshinamoorthy · Manesar, IN
• Thangaselvam Kamaraj · Manesar, IN
• Sarathy Iyengar · Viralimalai, IN
• Arumugam Nagappan · Manesar, IN
• Rahul Saxena · Sunnyvale, US
• Rajdeep Anand · Barwala, IN

Key dates

• Filing date: May 2, 2016
• Grant date: May 16, 2017
• Expiry date: May 2, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D231/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides a process for the preparation of N-alkylated fluorine-containing pyrazolecarboxylic acid derivatives of Formula I. The present invention further provides a pyrazole compound of formula IIIa.