摘要:
The present invention relates to a process for manufacturing 4-propargylated amino-benzoxazinones of formula (I), comprising the following steps: step a) preparing propargyl chloride by reacting propargyl alcohol with thionyl chloride optionally in the presence of a catalyst; and step b) reacting the propargyl chloride prepared in step (a) with a NH-benzoxazinone of formula (II); wherein the variables are defined according to the description.
摘要:
The present invention relates to a process for manufacturing aryloxyacetamides of formula (I), by reacting haloacetamides of formula (II) with a phenol of formula (III); wherein the variables are defined according to the description, and aryloxyacetamides of formula (I).
摘要:
Process for making a compound represented by formula (3), comprising the following steps: a) reacting an azide compound with a compound represented by formula (1) to yield compound (2), compound (2) being a compound represented by formula (2) or its salts, b) methylating compound (2) obtained in step a) using a methylating agent to obtain compound (3), wherein R1 denotes a hydrocarbon rest, and wherein in step a) a solvent system A and in step b) a solvent system B is used, wherein both solvent systems A and B comprise one dipolar aprotic solvent or a mixture of dipolar aprotic solvents as the main component, and wherein steps a) and b) are carried without isolating the compound (2) obtained in step a).
摘要:
The present invention relates to a process for preparing bromotrichloromethane comprising a) providing bromine in chloroform; and b) radiation of the resulting solution with light in the range of 350 to 550 nm, wherein said solution of bromine in chloroform is not radiated with radiation of a wavelength below 350 nm.
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.