Patent ID: 9650345
Date: 2017-05-16
CPC Classifications: C07D

Claim:
1. A process for the preparation of pyrazole compound of Formula I, wherein R R R halogen atom selected from fluorine, chlorine, bromine and iodine said process comprising: (a) contacting a compound of Formula V with a ferric chloride to obtain a compound of Formula VI; (b) contacting the compound of Formula VI with a compound of Formula VII to obtain a compound of Formula VIII; (c) contacting the compound of Formula VIII with a compound of Formula IX to obtain a compound of Formula II; (d) contacting the compound of Formula II with a compound of Formula IV and hydrochloric acid to obtain a compound of Formula III; and (e) contacting the compound of Formula III with water to obtain the compound of Formula I; wherein the compounds of Formula VI, VIII, II, and III are not isolated from the reaction mixture.