摘要:
The invention relates to a three-stage method for producing 4, 4-difluoro-acetyl-acetic acid alkylesters. In a first stage, a reaction of 4-chloro-4, 4-difluoro-acetyl-acetic acid alkylesters with trialkyl-phosphites of formula (III) P(OR1)3 is carried out, wherein R1 is C1-C4 alkyl, the R1 groups can be identical or different for producing alkyl-phosphonic acid esters of formula (IV) which react with amine of formula (V) during a second stage, wherein R2 and R3 are hydrogen or C1-C4 alkyl independent of each other, or jointly CH2-CH2-O-CH2-CH2- for forming enamines of formula (VI), wherein R2 and R3 have already mentioned significance, said enamines being hydrolysed in the presence of an acid during a third stage.
摘要:
The invention relates to a defined crystalline modification of the compound of formula (I), methods for the production thereof, and the use thereof in agrochemical preparations.
摘要:
The invention relates to novel 4-alkoxy cyclohexane-1 amino carboxylic acid esters of formula (IV) wherein R?1 and R2¿ have the designation cited in the description; intermediate products; and a method for the production of said esters. The invention also relates to the use thereof as intermediate products for the synthesis of insecticide, acaricide and herbicide compounds or pharmaceutical active ingredients.
摘要:
The invention relates to novel heterocyclic fluoralkenyl thioethers of formula (I) wherein m represents whole numbers from 3 to 10, n represents 0, 1 or 2, and Het represents the following respectively and optionally substituted groupings: The invention also relates to methods for the production thereof and the use of the same as pesticides.
摘要:
The invention relates to novel 4-alkoxy cyclohexane-1 amino carboxylic acid esters of formula (IV) wherein R?1 and R2¿ have the designation cited in the description; intermediate products; and a method for the production of said esters. The invention also relates to the use thereof as intermediate products for the synthesis of insecticide, acaricide and herbicide compounds or pharmaceutical active ingredients.