Abstract:
The invention relates to a method for production of aryl-substituted annelated pyrimidines of general formula (I), where L1 to L5= H, halogen, CN, NO2, C1-C4 alkyl, C1-C4 haloalkyl, C1-C4 alkoxy, C1-C4 haloalkoxy, etc., Y1 to Y3 = C-Rγ or N, Rγ = H or optionally substituted C1-C4 alkyl or two adjacent Rγ groups together form a ring, X = OH, Cl or Br, comprising: i) the reaction of a 2-phenylmalonate with a compound (III) or a tautomer thereof, in the presence of a suitable base, with continuous removal of the alcohol of formula R-OH, formed during the reaction, under reduced pressure, to give a compound of formula (I) or a salt thereof, where X = OH and in the case that X in compounds of general formula (I) = chlorine or bromine, ii) the reaction of the compounds of formula (I) obtained in step (i) or the salt thereof with a halogenating agent.
Abstract:
The present invention relates to compositions comprising the crystalline form B of 1,5-dimethyl-6-thioxo-3-(2,2,7-trifluoro-3-oxo-4-(prop-2-ynyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-1,3,5-triazinane-2,4-dione, and at least one further active compound selected from herbicides B and safeners C; and their use as herbicides, i.e. for controlling harmful plants, and also a method for controlling unwanted vegetation.
Abstract:
The present invention relates to compositions comprising the crystalline form A of 1,5-dimethyl-6-thioxo-3-(2,2,7-trifluoro-3-oxo-4-(prop-2-ynyl)-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)-1,3,5-triazinane-2,4-dione, and at least one further active compound selected from herbicides B and safeners C; and their use as herbicides, i.e. for controlling harmful plants, and also a method for controlling unwanted vegetation.