103515-13-5Relevant academic research and scientific papers
Preparation of sulphonyliso(thio)ureas and sulphonylisoureas
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, (2008/06/13)
A process for the preparation of a sulphonyliso(thio)urea of the formula STR1 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 STR2 in which R4 represents an optionally substituted hydrocarbon radical, with a compound of the formula at a temperature between 0° C. and 150° C. The products are known herbicides.
