摘要:
The invention relates to a new process for the preparation of (hetero)arylalk(en/in)ylamines of the formula (I) ##STR1## in which A represents ethane-1,2-diyl (ethylene, dimethylene, --CH.sub.2 --CH.sub.2 --) or represents ethene-1,2-diyl (ethenylene, vinylene, --CH.dbd.CH--) or represents ethine-1,2-diyl (ethinylene, --C.ident.C--),characterized in that(a) in the event that, in formula (I), A represents ethine-1,2-diyl, halogeno(hetero)aryl compounds of the general formula (II)Ar--X (II)are reacted with aminoalkinyl compounds of the general formula (III) ##STR2## and, if appropriate, (b) in the event that, in formula (I), A represents ethane-1,2-diyl or ethene-1,2-diyl, the new (hetero)aralkinylamines which are obtained by the process step described under (a), of the general formula (Ia), ##STR3## are reacted with a hydrogenating agent, if appropriate in the presence of a catalyst and if appropriate in the presence of a diluent, the definitions applying to Ar, R.sup.1, R.sup.2 and X being those mentioned in the description, and their use as intermediates for medicoments and plant protection agents, in this case in particular herbicides.
摘要:
In the preparation of benzyl ketones of the formula ##STR1## a benzyl chloride of the formula ##STR2## is reacted with an acid chloride of the formulaR.sup.6 --CO--Cl (III)a) in a first stage with an excess of zinc powder in the presence of a diluent at a temperature between 80.degree. C. and 200.degree. C. under an inert gas atmosphere, and separating off the excess zinc powder, thereby to obtain a benzyl derivative of the formula ##STR3## and b) in a second stage reacting the benzyl derivative of the formula (IV) with an acid chloride of the formula (III) in the presence of a palladium catalyst and in the presence of a diluent at a temperature between 0.degree. C. and 150.degree. C. under an inert gas atmosphere.
摘要:
In the preparation of benzyl ketones of the formula ##STR1## a benzyl chloride of the formula ##STR2## is reacted with an acid chloride of the formulaR.sup.6 --CO--Cl (III)a) in a first stage with an excess of zinc powder in the presence of a diluent at a temperature between 80.degree. C. and 200.degree. C. under an inert gas atmosphere, and separating off the excess zinc powder, thereby to obtain a benzyl derivative of the formula ##STR3## and b) in a second stage reacting the benzyl derivative of the formual (IV) with an acid chloride of the formula (III) in the presence of a palladium catalyst and in the presence of a diluent at a temperature between 0.degree. C. and 150.degree. C. under an inert gas atmosphere.
摘要:
Fungicidal and plant growth-regulating hydroxyalkylazolyl derivatives of the formula ##STR1## in which R represents hydrogen, alkyl or acyl,R.sup.1 represents halogen, optionally substituted phenyl or the grouping --Z--R.sup.3, whereinZ represents oxygen, sulphur, SO or SO.sub.2 andR.sup.3 represents optionally substituted alkyl, optionally substituted phenyl or optionally substituted phenylalkyl,R.sup.2 represents optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted naphthyl or the radical of the formula ##STR2## m represents the numbers, 0, 1, 2 or 3, or R.sup.2 represents the radical or the formula ##STR3## X represents nitrogen or a CH group and Y represents the groupings --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, ##STR4## and their addition products with acids and metal salts. Intermediates of the formulas ##STR5## are also new.
摘要:
Combating mycoses in humans and other animals with hydroxyalkyl-azolyl derivatives of the formula ##STR1## in which R stands for hydrogen, alkyl or acyl,R.sup.1 stands for halogen, optionally substituted phenyl or the --Z--R.sup.3 grouping,R.sup.2 stands for optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted naphthyl, for the radical of the formula ##STR2## or for the radical of the formula ##STR3## X stands for nitrogen or a CH group and Y stands for the --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--, ##STR4## groupings, whereinR.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another stand for hydrogen or alkyl having 1 to 4 carbon atoms,and their acid addition salts.
摘要:
A process is described for producing 2-chloroallyl isothiocyanate from 2,3-dichloro-1-propene by reacting the 2,3-dichloro-1-propene with a thiocyanate in the presence of a phase transfer catalyst, without diluent or in the presence of up to 15 percent by weight based on 2,3-dichloropropene and simultaneously in the presence of an excess of from 10 to 200 mol percent of 2,3-dichloro-1-propene based on the thiocyanate. A process starting from 1,2,3-trichloropropane is also described.
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 2-bromo-2,2-dichloroethyl aromatics of the formula (V) in which Ar is as defined above and to processes for preparation thereof.
摘要:
The invention relates to novel cis-alkoxy-substituted spirocyclic 1H-pyrrolidine-2,4-dione derivatives of the formula (I) in which A, G, X and Y are as defined in the disclosure, to a plurality of processes for their preparation and to their use as pesticides.