摘要:
Process for the preparation of polyaromatic compounds in which an aromatic dichloro compound, optionally in the presence of an anhydrous aprotic solvent, is reacted with metallic zinc, manganese or magnesium in the presence of a catalyst system of(1) from 0.1 to 25 mol-% (based on the dihalogen compound) of a nickel salt, nickel complex salt or nickel complex,(2) from 2 to 100 mol per mol of nickel in (1) of a triarylphosphine and optionally(3) from 0.1 to 10 mol per mol of nickel (1) of a halide, sulphate or phosphate of an alkali metal, alkaline earth metal, zinc, magnesium or manganese.
摘要:
A microbicidal hydroxyethyl-cyclopropyl-azolyl derivative of the formula ##STR1## in which R.sup.1 represents halogen, phenyl or the grouping --Z--R.sup.3, whereinZ represents oxygen, sulphur, SO or SO.sub.2 andR.sup.3 represents alkyl, phenyl or benzyl,R.sup.2 represents alkenyl, optionally substituted furyl, optionally substituted thienyl or the radical of the formula ##STR2## wherein R.sup.4 represents difluoromethoxy, 1,1,2,2-tetrafluoroethoxy, 1,1,2-trifluoro-2-chloro-ethoxy, cyano, formyl, alkoximinoalkyl, carbalkoxy, dialkoxyalkyl, phenoxyalkyl which is optionally substituted in the phenyl moiety by halogen, or benzyloxy which is optionally substituted in the phenyl moiety by halogen andR.sup.5 represents hydrogen or halogen, orR.sup.4 and R.sup.5 are linked in the ortho-position and together represent --O--CH.sub.2 --O--, orR.sup.2 represents the radical of the formula ##STR3## in which R.sup.6 represents difluoromethoxy, 1,1,2,2-tetrafluoroethoxy or 1,1,2-trifluoro-2-chloro-ethoxy, orR.sup.2 also represents phenyl which is optionally substituted by halogen and/or phenyl if Y represents the grouping ##STR4## X represents nitrogen or a CH group and Y represents the groupings --CH.sub.2 --CH.sub.2 --, --CH.dbd.CH--, --C.tbd.C--or ##STR5## or an acid or metal salt addition product thereof.
摘要:
Fungicidal and plant growth-regulating hydroxyalkyl-azolyl 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:
The hydrogenation of olefins containing nitrile groups in the homogeneous phase can be carried out particularly successfully using specific ruthenium complexes which are non-sensitive to air and have high catalytic activity.
摘要:
Unsymmetric biaryl compounds are prepared by coupling two different halogenoaromatics by reaction with a metal and carrying out the reaction in the presence of catalytic amounts of a nickel compound, a promoter and a phosphorus-containing ligand.