AN IMPROVED PROCESS FOR THE PREPARATION OF 4-AMINO-N-TERT-BUTYL-4,5-DIHYDRO-3-ISOPROPYL-5-OXO-1H-1,2,4-TRIAZOLE-1-CARBOXAMIDE (AMICARBAZONE)

AN IMPROVED PROCESS FOR THE PREPARATION OF 4-AMINO-N-TERT-BUTYL-4,5-DIHYDRO-3-ISOPROPYL-5-OXO-1H-1,2,4-TRIAZOLE-1-CARBOXAMIDE (AMICARBAZONE)

The present invention relates to an improved process for the preparation of 4-amino-N-tert butyl-4,5-dihydro-3-isopropyl-5-oxo-1H-1,2,4-triazole-1-carboxamide (Amicarbazone). The present invention more particularly relates to an improved process for the preparation of 4 amino-N-tert-butyl-4,5-dihydr...

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Bibliographische Detailangaben
Hauptverfasser: TIWARI, Raj, MCBRAYER, Tinker, PRASAD, Vic, ARORA, Raj, ALVES, Leandro, CAMPOS, Luiz
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention relates to an improved process for the preparation of 4-amino-N-tert butyl-4,5-dihydro-3-isopropyl-5-oxo-1H-1,2,4-triazole-1-carboxamide (Amicarbazone). The present invention more particularly relates to an improved process for the preparation of 4 amino-N-tert-butyl-4,5-dihydro-3-isopropyl-5-oxo-1H-1,2,4-triazole-1-carboxamide (Amicarbazone) by coupling of 4-Amino-2,4-dihydro-5-(1-methylethyl)-3H-1,2,4-triazol-3 one (TAZ) and poor quality tert-Butyl isocyanate (TBIC) with purity less than or equal to 98%, preferably less than or equal to 85%.