94828-34-9

Upstream product

• 94828-32-7 N'-(4,6-dimethylpyrimidin-2-yl)-N-methoxyguanidine 
• 2905-23-9 2-chlorophenylsulfonyl chloride 
• 94828-32-7 N'-(4,6-dimethyl-pyrimidin-2-yl)-N''-methoxy-guanidine 

Downstream Products

• 94828-42-9 N'-(4,6-dimethyl-pyrimidin-2-yl)-N-dimethylamino-N'-(2-chloro-benzenesulphonyl)-guanidine 
• 93745-01-8 N'-(4,6-dimethyl-pyrimidin-2-yl)-N-hydroxy-N'-(2-chloro-benzenesulphonyl)-guanidine 
• 103341-44-2 N'-(4,6-dimethylpyrimidin-2-yl)-N-octyloxy-N'-(2-chloro-benzenesulphonyl)-guanidine 
• 103488-66-0 N'-(4,6-dimethylpyrimidin-2-yl)-N-(2-chlorobenzenesulphonyl)-O-(1-methylethyl)isourea 
• 103515-13-5 N'-(4,6-dimethylpyrimidin-2-yl)-N-(2-chlorobenzenesulphonyl)-O-ethylisourea 
• 103340-49-4 N'-(4,6-dimethyl-pyrimidin-2-yl)-N-(2-chloro-benzenesulphonyl)-S-(4-chlorophenyl)-isothiourea 

Relevant academic research and scientific papers

Sulphonyliso(thio)urea derivatives and herbicidal use thereof

The invention relates relates to new sulphonyliso(thio)-urea derivatives of the general formula (I) STR1 in which R1 represent an optionally substituted radical from the series comprising alkyl, aralkyl, aryl and heteroaryl R2 represents an optionally substituted and/or optionally fused 6-membered aromatic heterocyclic radial containing at least one nitrogen atom, R3 represents an optically substituted aromatic or heteroaromatic radical, X represents oxygen or sulphur and M represents hydrogen or an equivalent of a metal, and adducts of compounds of the formula (I) with strong acids, processes for their prepartion, and their use as herbicides.

Preparation of sulphonyliso(thio)ureas and sulphonylisoureas

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.