摘要:
According to the invention, a new process for the preparation of fluorine-substituted aminobenzodioxoles and -benzodioxanes of the formula (I) ##STR1## in which n represents an integer 1 or 2, has been found, in which fluorine-substituted nitro-halogeno-benzodioxoles and -benzodioxanes, which are likewise new, are hydrogenated. The novel intermediates are obtained from fluorine-substituted benzodioxoles and benzodioxanes by halogenation and subsequent nitration. The amino compounds are important starting materials for highly active biocides.
摘要:
The new fluoro-trifluoromethylbenzoic acid derivatives of the general formula (I) ##STR1## wherein the substituents R, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the meaning given in the description, are suitable as starting substances for the preparation of antibacterial agents and feed additives.
摘要:
According to the invention, a new process for the preparation of fluorine-substituted aminobenzodioxoles and -benzodioxanes of the formula (I) ##STR1## in which n represents an integer 1 or 2, has been found, in which fluorine-substituted nitrohalogeno-benzodioxoles and -benzodioxanes, which are likewise new, are hydrogenated. The novel intermediates are obtained from fluorine-substituted benzodioxoles and benzodioxanes by halogenation and subsequent nitration. The amino compounds are important starting materials for highly active biocides.
摘要:
A process for the preparation of 3-substituted 4-cyanopyrrole compounds of the formula (I) ##STR1## in which Ar has the meaning given in the description, by reaction in a 1st stage of bromides (II)Ar--Br (II)with acrylonitrile in the presence of a solvent and a suitable reaction auxiliary to give acrylonitrile derivatives (III)Ar--CH.dbd.CH--CN (III)and in a 2nd stage with a phenylsulphonylmethyl isocyanide (IV)Ph--SO.sub.2 --CH.sub.2 --CN (IV)in the presence of a solvent and optionally in the presence of a suitable reaction auxiliary, characterised in that the 1st stage is carried out in the presence of a palladium catalyst and the 2nd stage in the presence of a 1.2- to 1.8-fold molar excess of alkali metal alcoholate or alkali metal hydroxide.
摘要:
New substituted 2-arylpyrroles of the general formula (I) ##STR1## in which R.sup.1 represents cyano or nitro,R.sup.2 represents the radicals ##STR2## wherein X.sup.1, X.sup.2, X.sup.3 and X.sup.4 can be identical or different and represent hydrogen, halogen or alkyl,R.sup.4 represents halogen andn represents a number from 0 to 3,R.sup.3 represents hydrogen or in each case optionally substituted alkyl, alkenyl or alkinyl,Y.sup.1 represents halogen andY.sup.2 represents halogen, alkyl or halogenoalkyl,are provided.The new compounds (I) have a very potent activity against animal pests, in particular against insects, arachnids and nematodes.
摘要:
New substituted 2-arylpyrroles of the general formula (I) ##STR1## in which R.sup.1 represents cyano or nitro,R.sup.2 represents the radicals ##STR2## wherein X.sup.1, X.sup.2, X.sup.3, and X.sup.4 can be identical or different and represent hydrogen, halogen or alkyl,R.sup.4 represents halogen andn represents a number from 0 to 3,R.sup.3 represents hydrogen or in each case optionally substituted alkyl, alkenyl or alkinyl,Y.sup.1 represents halogen andY.sup.2 represents halogen, alkyl or halogenoalkyl, are provided.The new compounds (I) have a very potent activity against animal pests, in particular against insects, arachnids and nematodes.