A NOVEL PROCESS FOR THE PREPARATION OF ANTHRANILIC DIAMIDES

A NOVEL PROCESS FOR THE PREPARATION OF ANTHRANILIC DIAMIDES

The present invention relates a novel process for preparing compounds of formula (I) or salts or N-oxides thereof,wherein,Ra, Rb, R1, R2, R3, R4 and n are as defined in the description.The process for preparing a compound of formula (I) comprises step of: reacting a compound of formula (IV) with sub...

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Bibliographische Detailangaben
Hauptverfasser: GURJAR, Bhagwan Lal, KLAUSENER, Alexander G.M, PABBA, Jagadish, PATRA, Pranab KUMAR, KANAWADE, Shrikant Bhausaheb, SHINDE, Bharat Uttamrao, SHAH, Jigarkumar Harikishandas, SHARMA, Raju, YADAV, Ajay, MAHAPATRA, Tridib, KALWAGHE, Amol D
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention relates a novel process for preparing compounds of formula (I) or salts or N-oxides thereof,wherein,Ra, Rb, R1, R2, R3, R4 and n are as defined in the description.The process for preparing a compound of formula (I) comprises step of: reacting a compound of formula (IV) with substituted anthranilic acid of formula (III) and suitable amine of formula (RaRbNH) or with substituted anthranilic amide of formula (IIIa), optionally isolating compound of formula (II).Further, the present invention also describes the preparation of compound of formula (IV) which is obtained from compound of formula (VIII).