Process for preparing sulfonylureas

The prepn. of a sulphonyl-urea of formula (I) comprises reacting a sulphonyl chloride of formula (II) with a cyanate salt of formula MOCN (III) in the presence of an inert aprotic solvent and a heterocyclic amine base of formula Q (IV) at 0-60 deg.C and a pressure of 1-5 atmospheres for a time suffi...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TEMENG, KWAKU OFOSU, DAVIS, RICHARD FRANK, CHIANG, GEORGE CHIHSHU
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS METALLURGY ORGANIC CHEMISTRY
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