Patent ID: 7087764
Filing Date: 2006-08-08
Classification: C07C,C07D

Abstract:
1. A process for producing a compound of the formula (IV): wherein R 1 and R 2 each independently represents halogen, alkyl, alkoxy, nitro or cyano, R 3 represents hydrogen or an organic residue, R 4 represents an organic residue and R 5 represents hydrogen or an organic residue, which comprises preparing a compound of the formula (II): wherein Hal 1 represents halogen and R 1 and R 2 are as defined above, by a process which comprises allowing a halogenating agent to react with a compound of the formula (I): wherein Alk represents isopropyl or tert-butyl and R 1 and R 2 are as defined above, then reacting the compound of the formula (II) with a compound of the formula (III): wherein R 3 , R 4 and R 5 are as defined above.