PROCESS FOR PREPARING A SUBSTITUTED PHENYLUREA

PROCESS FOR PREPARING A SUBSTITUTED PHENYLUREA

Process for preparing a substituted phenylurea. A suitably substituted aniline, excess urea in a mole ratio of at least 1.1 with respect to the aniline, and a secondary amine are reacted simultaneously in a non-hydroxyl-containing organic solvent at a temperature of 130 DEG to 250 DEG C., with remov...

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Bibliographische Detailangaben
1. Verfasser: PARRON JEAN CLAUDE
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:Process for preparing a substituted phenylurea. A suitably substituted aniline, excess urea in a mole ratio of at least 1.1 with respect to the aniline, and a secondary amine are reacted simultaneously in a non-hydroxyl-containing organic solvent at a temperature of 130 DEG to 250 DEG C., with removal of ammonia as it forms. The phenylureas obtained are used as herbicides.