TETRAHYDROBENZOTHIAZOLYL-1,3,5-TRIAZINONE DERIVATIVE AND HERBICIDE CONTAINING SAID DERIVATIVE

摘要

NEW MATERIAL:A compound expressed by formula I [R is -CH2CH2Cl, -CH2 CH2OH, -CH2CH2CH2OH, -CH2CH2CN, -CH2CH(CH3)2 or formulaII-IV, etc.]. EXAMPLE:5-( 2-Chloroethyl )tetrahydro-1-( 4,5,6,7-tetrahydro-5,5-dimethyl-7-oxo-2- benzothiazolyl)-3-methyl-1,3,5-triazin-2(1H)-one. USE:A herbicide capable of exhibiting powerful activity, particularly against broad-leaved weeds. PREPARATION:For example, N-(4,5,6,7-tetrahydro-5,5-dimethyl-7-oxo-2-benzothiazolyl-N'-methylurea expressed by formula V is reacted with formaldehyde and a primary amine in the presence of an aprotic solvent, e.g. DMF.