摘要:
A process for the preparation of 2,2-difluoroethylamine of the formula (I) CHF2CH2NH2 (I) comprising the stages (i) and (ii): stage (i): reaction of 2,2-difluoro-1-haloethane of the formula (II) CHF2—CH2Hal (II) in which Hal is chlorine, bromine or iodine, with prop-2-en-1-amine of the formula (III) to give N-(2,2-difluoroethyl)prop-2-en-1-amine of the formula (IV) preferably in the presence of an acid scavenger, and stage (ii): removal of the allyl group from the N-(2,2-difluoroethyl)prop-2-en-1-amine of the formula (IV) obtained in stage (i) to give 2,2-difluoroethylamine of the formula (I) or a salt thereof.
摘要:
Process for the preparation of 2,2-difluoroethylamine of the formula (I) CHF2CH2NH2 (I) comprising the stages (i) and (ii): stage (i): reaction of 2,2-difluoro-1-haloethane of the general formula (II) CHF2—CH2Hal (II), with a benzylamine compound of the formula (III) in the presence of an acid scavenger, in which, in formula (II), Hal is chlorine, bromine or iodine, and, in the formulae (III), R1 is hydrogen or C1-C12-alkyl, and R2 is hydrogen, halogen, C1-C12-alkyl or C1-C6-alkoxy; stage (ii): catalytic hydrogenation of the N-benzyl-2,2-difluoroethanamine compound obtained in the stage (i) to give 2,2-difluoroethylamine of the formula (I) or a salt thereof.
摘要:
Process for preparing 2,2-difluorethylamine derivatives of the general formula (III) in which A is an optionally substituted heterocycle as described in the description, by reacting a 2,2-difluoroethyl-1-haloethane compound of the general formula (I) in which Hal is Cl, Br or iodine, with an amine of the general formula (II) in which A is as defined above, optionally in the presence of a base.
摘要:
Process for preparing 2,2-difluoroethylamine, comprising the following steps: (i) mixing 2,2-difluoro-1-chloroethane and gaseous, liquid or supercritical ammonia in a pressure-stable, closed reaction vessel under a pressure in the range from 10 to 180 bar; (ii) reacting the reaction mixture at a reaction temperature in the range from 80° C. to 200° C.; (iii) letting down the reaction mixture and isolating 2,2-difluoroethylamine.
摘要:
The present invention relates to a novel solid form of 4-[[(6-chloropyridin-3-yl)methyl](2,2-difluoroethyl)amino]furan-2(5H)-one, to processes for its preparation and to its use in agrochemical preparations.
摘要:
The present invention relates to new insecticides of the formula (I) in which R1, R2, R3, R4, R5, R6, A, Q and n can have the definitions stated in the description, to a number of processes for preparing them and to their use as active compounds, more particularly to their use as pest control compositions.
摘要:
The invention relates to novel insecticidal active compound combinations comprising, firstly, compounds which act as insecticides on nicotinergic acetylcholine receptors as agonists and antagonists, and at least one active compound from the group of the anthranilamides, which combinations are suitable for protecting plants against attack by pests.
摘要:
The present invention relates to the use of anthranilamide derivatives of the general formula (I) in which R1, R2, R3, R4, R5, A, X, Qx, Qy and n have the general meanings given in the description for controlling insects and/or spider mites by drenching, soil mixing, furrow treatment, droplet application, in hydroponic systems, by planting hole treatment, soil, stern or flower injection, dip application, floating or seedbox application or by treating seed.
摘要:
The novel active ingredient combinations which consist of the compounds of the formula (I) in combination with further active insecticidal ingredients (II) are very suitable for control of animal pests such as insects and/or unwanted acarids.
摘要:
The present invention relates to novel ortho-substituted arylamide derivatives of the general formula (I) in which R1, R3, R4, R5, Qx, A, Qy, X, L and n have the meanings given in the description, to their use as insecticides and acaricides for controlling animal pests, also in combination with other agents for activity boosting, and to a plurality of processes for their preparation.