MANUFACTURE OF SULFONYLISO(THIO)UREA

MANUFACTURE OF SULFONYLISO(THIO)UREA

A process for the preparation of a sulphonyliso(thio)urea of the formula in which R1 represents an optionally substituted radical from the group consisting of alkyl, aralkyl, aryl and heteroaryl, R2 represents an optionally substituted and/or optionally fused, six-membered aromatic heterocycle conta...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: RORUFU KIRUSUTEN, YOAHIMU KURUTO, TEODOORU PUFUISUTAA, UBE PURIISUNITSUTSU, HANSU YOTSUHEMU RIIBERU, KURAUSU HERUMUUTO MIYURAA, KURISUTA FUESUTO, HANSU YOAHIMU DEIIRU, BORUFUGANGU ROI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A process for the preparation of a sulphonyliso(thio)urea of the formula in which R1 represents an optionally substituted radical from the group consisting of alkyl, aralkyl, aryl and heteroaryl, R2 represents an optionally substituted and/or optionally fused, six-membered aromatic heterocycle containing at least one nitrogen atom, R3 represents an optionally substituted radical from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkyl-alkyl and aralkyl, and Q represents oxygen or sulphur, comprising reacting a sulphonylguanidine of the formula in which R4 represents an optionally substituted hydrocarbon radical, with a compound of the formula H-Q-R3 at a temperature between 0 DEG C. and 150 DEG C. The products are known herbicides.