摘要:
The present invention relates to the preparation of nuclear-fluorinated aromatics by reacting, with a fluoride at 40 to 260° C., an aromatic compound substituted at the nucleus with halogen that is exchangeable for fluorine in the presence of at least one compound of the formula (I) where A, B, and An⊖ have the meanings specified in the disclosure.
摘要:
The present invention relates to fluorination reagents comprising 1-fluoro-1-aminoolefins and also processes for preparing fluorination reagents comprising 1-fluoro-1-aminoolefins.
摘要:
The present invention relates to new substituted benzimidazoles, their preparation and their use as agents against parasitic protozoa. The active compounds are characterized by the following formula (I): in which X1 represents chlorine or bromine, R1 represents hydrogen or C1-4-alkyl, R3 represents fluoroalkyl, R2 represents the radical R4 represents alkyl or substituted phenyl, R5 represents alkyl.
摘要:
The invention relates to a process for preparing difluorobenzo-1,3-dioxole-5-carboxylic acid and derivatives thereof, and to the use thereof for preparing medicaments and crop protection agents.
摘要:
This invention relates to 1,2-di(4-hydroxyaryl)tetrafluoroethanes of the general formula (I) wherein R are each, independently of one another, hydrogen, F, Cl, Br, I, CN, COOR2, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-perfluoro-alkyl, C1-C4-perfluoroalkoxy, C1-C4-perfluoroalkylthio, C1-C4-poly-fluoroalkyl, C1-C4-polyfluoroalkoxy, or C1-C4-polyfluoroalkylthio, R2 is C1-C4-alkyl, and n is an integer from 0 to 4. This invention further relates to the preparation of such compounds as well as to precursors and intermediates that can be used in their preparation.
摘要:
New halogenobenzimidazoles of the formula in which A, R1, R2, R3, R4 and X have the meanings given in the description, and their acid addition salts and metal salt complexes, a process for their preparation and their use as microbicides in crop protection and in the protection of materials. New intermediates of the formulae in which R12-R17 and X have the meanings given in the description, and processes for the preparation of these substances.
摘要:
The invention relates to novel substituted 3-thiocarbamoylpyrazoles of general formula (I), wherein m, n, R1, R2, R3 and Ar have the meanings cited in the description. The invention further relates to methods for the production and use thereof as pesticides.
摘要:
The invention relates to a process for preparing substituted arylpyrazoles of the general formula (I) in which R1, R2, R3 and R4 are each as defined in the description, and to novel intermediates for preparing these arylpyrazoles.
摘要:
This invention relates to a process for preparing perfluoroalkyl aryl sulfides by reaction of disulfides with alkali metal salts of aliphatic perfluorocarboxylic acids in the presence of a high-boiling aprotic solvent at elevated temperature and reduced pressure, wherein the product formed is distilled off at the rate at which it is formed. This invention further relates to the novel compounds 2-nitrophenyl pentafluoroethyl sulfide and 2-aminophenyl pentafluoroethyl sulfide.