Abstract S-TRIAZINE DERIVATIVES ARE OBTAINED BY REACTING A COMPOUND OF THE FORMULA WHEREIN R1 and R2, which may be the same or different, each represents hydrogen or an optionally substituted aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical and X represents oxygen or sulphur WITH A SUBSTANTIALLY EQUIMOLAR QUANTITY OF N-chlorocarbonyl isocyanate at a temperature of from about -100* C. to about +200* C., optionally in the presence of an inert organic solvent. The novel compounds that can be obtained by the process according to the invention have the general formula WHEREIN X represents oxygen or sulphur and R1 and R2, which may be the same or different when X represents sulphur but which must be different when X represents oxygen, each represents hydrogen or an optionally substituted aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic radical. They can be used as herbicides.
A process as claimed in claim 1 wherein the temperature is from -50* to +100*C.
Claim 2
Dependent Claim
15 words
A process as claimed in claim 1 wherein the temperature is from +20* to +60*C.
Claim 3
Dependent Claim
18 words
A process as claimed in claim 1 wherein the reaction is carried out in an inert organic solvent.
Claim 4
Dependent Claim
16 words
A process as claimed in claim 4 wherein the inert organic solvent is a chlorinated hydrocarbon.
Claim 5
Dependent Claim
16 words
A process as claimed in claim 1 wherein the reactants are employed in substantially equimolar amounts.
Claim 6
Dependent Claim
99 words
Compound having the formula wheRein X is oxygen or sulphur, and R1 and R2, which may be the same or different when X is sulphur but must be different when X is oxygen, each represents hydrogen or a member selected from the group of alkyl having one to 20 carbon atoms, cycloalkyl having five to eight carbon atoms in the ring system, phenyl alkyl having one to four carbon atoms in the alkyl group, naphthyl alkyl having one to four carbon atoms in the alkyl group, and carbocyclic aryl with six to 14 carbon atoms in the ring system.
Claim 7
Dependent Claim
19 words
Compound according to claim 7 wherein X represents oxygen, R1 represents methyl and R2 represents cyclohexyl, phenyl or 3,4-dichlorophenyl.
Claim 8
Dependent Claim
16 words
Compound according to claim 7 wherein X represents sulphur and R1 and R2 stand for methyl.