摘要:
The invention relates to a process for preparing aryl- and heteroarylacetic acids and derivatives thereof by reaction of aryl or heteroaryl halides with malonic diesters in the presence of a palladium catalyst, of one or more bases and optionally of a phase transfer catalyst. This process enables the preparation of a multitude of functionalized aryl- and heteroarylacetic acids and derivatives thereof, especially also the preparation of arylacetic acids with sterically demanding substituents.
摘要:
The invention relates to a process for preparing aryl- and heteroarylacetic acids and derivatives thereof by reaction of aryl or heteroaryl halides with malonic diesters in the presence of a palladium catalyst, of one or more bases and optionally of a phase transfer catalyst. This process enables the preparation of a multitude of functionalized aryl- and heteroarylacetic acids and derivatives thereof, especially also the preparation of arylacetic acids with sterically demanding substituents.
摘要:
The present invention relates to a process for preparing α-arylmethylcarbonyl compound of the formula (III), characterized in that aryl- and heteroarylacetic acids and derivatives thereof of the formula (I) are reacted with α-halomethylcarbonyl compounds of the formula (II) in the presence of a palladium catalyst, of a phosphine ligand, of an inorganic base and of a phase transfer catalyst, optionally using an organic solvent.
摘要:
The present invention relates to novel dithiinetetra(thio)carboximides, to processes for preparing these compounds, to compositions comprising these compounds, and to the use thereof as biologically active compounds, especially for control of harmful microorganisms in crop protection and in the protection of materials and as plant growth regulators.
摘要:
The invention relates to a plurality of processes for the preparation of novel cis-alkoxy-substituted spirocyclic 1 H-pyrrolidine-2,4-dione derivatives of the formula (I) in which A, G, X and Y are as defined in the disclosure.
摘要:
The invention relates to novel 4-alkoxy-cyclohexane-1-amino-carboxylic esters of the formula (IV) in which R1 and R2 are as defined in the description, to intermediates and processes for their preparation and to their use as intermediates in the synthesis of insecticidal, acaricidal and herbicidal compounds or pharmaceutically active compounds.
摘要:
The invention relates to a method for preparing 2,5-dimethylphenylacetic acid by converting p-xylene with chloroacetyl chloride into 2-chloro-1-(2,5-dimethylphenyl)ethanone, which is reacted with the compound of the formula (II) to give the compound of the formula (III), which is then rearranged to give a mixture of the compounds (IV) and (V), which is then hydrolyzed to 2,5-dimethylphenylacetic acid.
摘要:
The invention relates to novel 4-alkoxy-cyclohexane-1-amino-carboxylic esters of the formula (IV) in which R1 and R2 are as defined in the description, to intermediates and processes for their preparation and to their use as intermediates in the synthesis of insecticidal, acaricidal and herbicidal compounds or pharmaceutically active compounds.
摘要:
The present invention relates to a semi-hydrochloride of 8-cyano-1-cyclopropyl-7-(1S,6S-2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinoline-carboxylic acid, to processes for its preparation and to antibacterial compositions comprising it. The semihydrochloride of 8-cyano-1-cyclopropyl-7-(1S,6S-2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid can be described by the following formula: