摘要:
The present invention relates to a process for the preparation of substituted 4-(N′-hydroxy-carbamimidoyl)benzoic acids, which can be obtained by nitrilase catalyzed hydration of substituted terephthalonitriles of formula (II) in an aqueous medium to afford (ammonium) 4-cyanobenzoic acids (IIa). The hydration is followed by treatment of the aqueous reaction medium with hydroxylamine or a salt thereof to afford amidoximes (I).
摘要:
The present invention relates to a process for the preparation of 4-cyanobenzoyl chlorides of formula I through reaction of compounds of formula II with a chlorinating agent.
摘要:
The present invention relates to a process for manufacturing haloacetamides of formula (I), comprising sub-step (a): reacting halones of formula (II) with oleum; followed by sub-step (b): reacting the reaction mixture obtained in sub-step (a) with an amine of formula (IV) optionally in the presence of a base; wherein the variables are defined according to the description.
摘要:
The present invention relates to a process for manufacturing benzoxazinones of formula (I), wherein the variables are defined according to the description, by reacting carbamates of formula (II) are reacted with carbamat-benzoxazinones of formula (III) in the presence of a base.
摘要:
The present invention relates to a process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylic acids and their esters, 2-(aminomethylidene)-4,4-difluoro-3-oxobutteric esters of the formula (I) in which R1, R2 and R3 independently of one another are C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C3-C10-cycloalkyl or benzyl or NR2R3 is a 5- to 10-membered heterocyclic radical, to a process for preparing compounds of the formula (I) wherein an appropriate 3-aminoacrylic ester is reacted with difluoroacetyl fluoride and to the use of compounds of the formula (I) in the process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylic acids and their esters.
摘要:
The present invention relates to a process for manufacturing benzoxazinones of formula (I), wherein the variables are defined according to the description, by reacting carbamates of formula (II) are reacted with carbamat-benzoxazinones of formula (III) in the presence of a base.
摘要:
The present invention relates to carbamates of formula (I), wherein the variables are defined according to the description, as well as to a process for manufacturing carbamates of formula (I), and to the use of carbamates of formula (I) in manufacturing benzoxazinones of formula (VII).
摘要:
The present invention relates to a process for manufacturing fluoroaromatics of formula (I), A-F (I) comprising step a) diazotization of aminoaromatics of formula (II) in anhydrous HF with an aqueous solution of a diazotizing agent; followed by step b) thermic decomposition of the diazonium salt of formula (III) resulting from step a); wherein the variables are defined according to the description.
摘要:
The present invention relates to a novel 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 The invention also relates to a process for the production of this crystalline form and formulations for plant protection which contains the novel crystalline form 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.
摘要:
The present invention relates to a process for manufacturing triazinon-benzoxazinones of formula (I), by reacting amino-benzoxazinones of formula (II) with 1,1′-carbonyldiimidazole (CDI) and a (thio)urea compound of formula (III); wherein the variables are defined according to the description.