874967-67-6Relevant articles and documents
PROCESS FOR THE MANUFACTURE OF PYRAZOLE COMPOUNDS
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, (2019/07/13)
Disclosed are processes for the manufacture of pyrazole compounds of formula (I) and their application in the manufacture of pyrazole derivatives, in particular in processes for the manufacture of pharmaceutically or agrochemically active compounds, wherein in the processes, at least two steps are conducted in the presence of at least one solvent which is the same in the at least two steps, wherein the at least one same solvent is selected from the group consisting of aromatic hydrocarbons, alkanes, carboxylic acid esters, ethers, nitriles and dimethylformamide.
PROCESS FOR THE MANUFACTURE OF PYRAZOLE CARBOXYLIC DERIVATIVES AND PRECURSORS THEREOF
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Page/Page column 27-28, (2019/07/13)
The present invention concerns processes for the manufacture of pyrazole carboxylic derivatives and precursors thereof.
PROCESS FOR THE MANUFACTURE OF CARBOXAMIDES
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Page/Page column 25, (2017/09/08)
The present invention concerns a process for the manufacture of carboxamides, in particular agrochemical or pharmaceutically active ingredients, from pyrazole ketone compounds.
PROCESS FOR THE PREPARATION OF PYRAZOLE-4-CARBOXAMIDES
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Page/Page column 23, (2016/03/12)
The invention concerns a process for the manufacture of pyrazole-4-carboxamides, in particular, of 3-difluoromethyl-1-methyl- H-pyrazole-4-carboxamides which are useful as pharmaceuticals and agrochemicals. The carboxamides are prepared from the correspon
PROCESS FOR THE PREPARATION OF PYRAZOLE-4-CARBOXAMIDES
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Page/Page column 21, (2012/05/19)
The invention concerns a process for the manufacture of pyrazole-4-carboxamides, in particular, of 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxamides which are useful as pharmaceuticals and agrochemicals. The carboxamides are prepared from the correspon
Method For Manufacturing Aryl Carboxamides
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Page/Page column 4, (2011/04/14)
A process for preparing arylcarboxamides of the formula (I) where Ar =a mono- to trisubstituted phenyl, pyridyl or pyrazolyl ring, where the substituents are selected from halogen, Ci-C4-alkyl and C1-C4-haloalkyl; M =thienyl or phenyl, which may bear a halogen substituent; Q =direct bond, cyclopropylene, fused bicycio[2.2.1]heptane or bicyclo[2.2.1]heptene ring; R1 =hydrogen, halogen, C1-C6-alkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, mono- to trisubstituted phenyl, where the substituents are selected from halogen and trifluoromethylthio, or cyclopropyl; by reacting an acid chloride of the formula (II) with an arylamine (III) in a suitable nonaqueous solvent, wherein, in the absence of an auxiliary base, a) the acid chloride (II) is initially charged, b) a pressure of from 0 to 700 mbar is established, c) the arylamine (III) is metered in in an approximately stoichiometric amount and d) the product of value is isolated.
Method for the Production of N-Substituted (3-Dihalomethyl-1-Methyl-Pyrazole-4-yl) Carboxamides
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Page/Page column 19, (2010/07/10)
The present invention relates to a process for preparing N-substituted (3-dihalomethylpyrazol-4-yl)carboxamides of the formula (I) in which R1 is optionally substituted phenyl or C3-C7-cycloalkyl, R1a is hydrogen or fluorine, or R1a together with R1 is optionally substituted C3-C5-alkanediyl or C5-C7-cycloalkanediyl, R2 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl or C1-C4-alkoxy-C1-C2-alkyl, X is F or Cl and n is 0, 1, 2 or 3; which comprises A) providing a compound of the formula (II) in which X is F or Cl, Y is Cl or Br and R2 has one of the meanings given above and B) reacting a compound of the formula (II) with carbon monoxide and a compound of the formula (III) in which R1, R1a and n have one of the meanings given above; in the presence of a palladium catalyst; to intermediates used for the preparation according to the process according to the invention, and also to processes for their preparation.
Process for preparing difluoromethylpyrazolyl carboxylates
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Page/Page column 10, (2010/04/23)
The present invention relates to a process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylates of the formula I in which R1 is C1-C8-alkyl, C3-C8-cycloalkyl, C1-C4-alkoxy-C1-C4-alkyl, etc.; andR2 is hydrogen, C1-C4-alkyl, benzyl or phenyl, wherein a) a compound of the general formula II in which X is fluorine, chlorine or bromine, R1 has one of the meanings given above and R4 is C1-C8-alkyl, C3-C8-cycloalkyl, C2-C8-alkenyl, benzyl or phenyl, is reacted with a silane compound of the general formula R3nSiCl(4-n) in which n is 1, 2 or 3 and the substituents R3 are independently of one another selected from the group consisting of C1-C8-alkyl and phenyl and with a metal selected from the metals of groups 1, 2, 3, 4 and 12 of the Periodic Table of the Elements having a redox potential of less than ?0.7 V, based on a normal hydrogen electrode (at 25° C. and 101.325 kPa); and b) the reaction mixture from step a) is reacted with a compound of the general formula III [in-line-formulae]R2HN—NH2 ??(III)[/in-line-formulae] in which R2 has one of the meanings given above.
PROCESS FOR THE PREPARATION OF AMIDES
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Page/Page column 32-33, (2009/12/23)
The invention relates to a process for the preparation of fungicidally active compounds such as tricyclic amine derivatives(I). The process involves coupling of a carboxylic 5 acid e.g. a compound of formula (II) with an aniline, e.g. a compound of formula(III) in the presence of a boronic acid catalystor an antimony catalyst (II)(III)(I) wherein R1, R2, R3, R4, R5, R6, R7, X, Y and Het are defined in the specification.