摘要:
The present invention relates to a novel, optimized process for the preparation of cyclohexanedionecarboxylic acid derivatives of formula I which can be carried out in a single vessel affording a very good yield, which process comprises heating a reactive carboxylic acid derivative of formula III ##STR1## wherein X is a halide, an alkylsulfonic or arylsulfonic acid radical or the molecular radical ##STR2## which is necessary to form an anhydride and R.sub.1 is alkyl or cycloalkyl, with an alkali metal cyanide or copper cyanide, in an inert organic solvent, to give a mixture, then adding in succession to said mixture, at a temperature in the range from 0.degree. C. to room temperature, zinc chloride, an equimolar amount, with respect to the carboxylic acid derivative of formula III, of a 3,5-cyclohexanedione-1-carboxylic acid derivative of formula II ##STR3## wherein A is an ester or amide radical, and, dropwise, an amine, and, after acidifying the reaction mixture with an aqueous acid, isolating the resultant 4-acyl-3,5-cyclohexanedione-1-carboxylic acid derivative of formula I ##STR4## by extraction. Said cyclohexanedionecarboxylic acid derivatives have herbicidal and plant growth regulating properties.
摘要:
Compounds of formula (I) ##STR1## in which the substituents W, R.sub.100, R.sub.101 and R.sub.102 are as defined 1; and the pyrazole N-oxides, salts, complexes and stereoisomer of the compounds of (I) have good pre- and post-emergence selective herbicidal properties. The preparation compounds and their use as herbicidal active compounds are described.
摘要:
The present invention relates to herbicidally, acaricidally and insecticidally active pyrazolidine-3,5-diones of the formula I ##STR1## in which R.sub.1 is ##STR2## R.sub.2 and R.sub.3 independently of one another are C.sub.1 -C.sub.6 alkyl; C.sub.3 -C.sub.6 alkenyl; or C.sub.3 -C.sub.6 alkynyl; orR.sub.2 and R.sub.3 together are a --(CH.sub.2).sub.3 --, --(CH.sub.2).sub.4 --, --CH.sub.2 --CH.dbd.CH--CH.sub.2 --, --CH.sub.2 --CH.dbd.CH-- or --(CH.sub.2).sub.2 --CH.dbd.CH-- bridge which is unsubstituted or up to trisubstituted by C.sub.1 -C.sub.4 alkyl;n is 0; 1; 2; 3; or 4;m is 0; or 1; the total of m and n being less than, or equal to, 4; theR.sub.4 radicals independently of one another are halogen; nitro; cyano, C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 haloalkyl; C.sub.1 -C.sub.10 alkoxy; C.sub.1 -C.sub.4 haloalkoxy; C.sub.3 -C.sub.6 alkenyloxy; C.sub.1 -C.sub.4 alkoxy-C.sub.2 -.sub.4 alkoxy; C.sub.3 -C.sub.6 alkynyloxy; C.sub.1 -C.sub.4 alkylcarbonyl; C.sub.1 -C.sub.4 alkoxycarbonyl; C.sub.1 -C.sub.4 alkylthio; C.sub.1 -C.sub.4 alkylsulfinyl; C.sub.1 -C.sub.4 alkylsulfonyl; amino; mono-C.sub.1 -C.sub.4 alkylamino; di-C.sub.1 -C.sub.4 alkylamino;R.sub.5 is ##STR3## X is oxygen; sulfur; CH.sub.2 ; or NR.sub.7 ; o is 0; 1; 2; or 3;R.sub.6 radicals independently of one another are C.sub.1 -C.sub.4 alkyl; halogen; C.sub.1 -C.sub.4 haloalkyl; C.sub.1 -C.sub.4 haloalkoxy; C.sub.1 -C.sub.4 alkoxy; nitro; cyano; C.sub.1 -C.sub.4 alkoxycarbonyl; amino; mono-C.sub.1 -C.sub.4 alkylamino; or di-C.sub.1 -C.sub.4 alkylamino; andR.sub.7 is hydrogen; C.sub.1 -C.sub.4 alkyl; formyl; or C.sub.1 -C.sub.4 alkylcarbonyl;the acid addition salts thereof, as well as processes for their preparation, and novel intermediates for these processes. The invention furthermore relates to herbicidally, acaricidally or insecticidally active compositions as well as to methods for controlling weeds, Acarina or insects.
摘要:
The invention relates to novel phenyl substituted pyrazoles, 4,5,6,7-tetrahydro-indazoles, 2,4,5,6-tetrahydro-cyclopenta[c]pyrazoles, octahydroimidazo[1,5-a]pyridin-1,3-diones, hexahydro-1H-pyrrolo[1,2-c]-imidazol-1,3-diones, hexahydro-1H-1,2,4-triazolo[1,2-a]pyridazin-1,3-diones and tetrahydro-1H,5H-pyrazolo[1,2-a][1,2,4]triazol-1,3-diones which have phenyl-substituted in the 2-position, herbicidal activity. It furthermore relates to agrochemical compositions, which contain these compounds, to their use for controlling undesirable plant-growth and for processes for the preparation of the compounds according to this invention.The novel N-Phenyl-azoles correspond to the formula I ##STR1## R.sup.1 is hydrogen or halogen; R.sup.2 is halogen;A is a straight-chain or branched C.sub.1 -C.sub.4 -alkylene chain;n is zero or 1;Q is --S(O).sub.m --R.sup.3 ; di-C.sub.1 -C.sub.4 -alkylamino; a 5- or 6-membered heterocyclus, that is bound via a carbon or nitrogen atom and which contains 1 to 3 hetero-atoms selected from the group consisting of N, O and S, which heterocycles can be fused to a benzene ring and mono- or disubstituted by halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.3 -haloalkyl, C.sub.1 -C.sub.3 -alkoxy, C.sub.1 -C.sub.3 -haloalkoxy, C.sub.1 -C.sub.3 -dialkylamino, hydroxy or carboxyl;R.sup.3 is C.sub.1 -C.sub.10 -alkyl; ##STR2## m is zero, 1 or 2; R.sup.4 is C.sub.1 -C.sub.4 -alkyl, halogen or C.sub.1 -C.sub.4 -alkoxy;p is zero 1, 2, or 3;X is hydrogen, halogen or C.sub.1 -C.sub.4 -alkyl;Y is C.sub.1 -C.sub.4 -alkyl; orX and Y form together a --(CH.sub.2).sub.q -chain, which is optionally mono- or disubstituted by methyl;q is three or four; andZ is halogen, methyl, C.sub.1 -C.sub.6 -alkoxy or C.sub.1 -C.sub.6 -alkylthio; under inclusion of the salts of these azoles with acids, bases and complex-building substances.
摘要:
This continuation-in-part is directed to novel pyridine compounds of formula I below have good selective herbicidal properties pre- and postemergence and also influence or inhibit plant growth. The compounds are of formula I ##STR1## wherein each of X, Y and Z independently of one another is hydrogen or a C.sub.1 -C.sub.4 alkyl group, or two adjacent substituents together also form a saturated or unsaturated 3- or 4-membered alkylene chain or alkenyl chain, each of which chains may in turn by substituted by one to four C.sub.1 -C.sub.4 alkyl groups and R is a C.sub.1 -C.sub.4 nitroalkyl group.
摘要:
Novel cyclohexenonecarboxylic acid derivatives exhibit herbicidal and plant growth regulating activity.The cyclohexenonecarboxylic derivatives are of the formula I ##STR1## wherein A is an aliphatic or aromatic alcohol, or is an amino group which may be substituted by halogen, lower alkoxy, lower alkylthio, nitro or cyano, or is a heterocyclic amino group which is unsubstituted or substituted,R is C.sub.1 -C.sub.6 alkyl or C.sub.3 -C.sub.6 cycloalkyl, each unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio,R.sub.1 is C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.6 haloalkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 haloalkenyl or C.sub.3 -C.sub.6 alkynyl,B is an aliphatic or aromatic radical or is an aliphatic or aromatic carbonyl or sulfonyl group which may be substituted by halogen, lower alkoxy, lower alkylthio, nitro or cyano.The compounds are suitable for selectively controlling grasses in crops of useful plants.
摘要:
The novel compounds of the formula I are useful selective herbicides for postemergence application in crops of cereals, maize and rice.In formula I, ##STR1## A is an unsubstituted or substituted amino group, Q is a C.sub.2 -C.sub.6 alkylene bridge, Y is an oxygen or sulfur atom or an unsubstituted or substituted nitrogen atom, and Z is an unsubstituted or substituted phenyl, naphthyl or heterocyclic radical, which phenyl radical, containing the bridge member Y, can additionally carry one to four further substituents.
摘要:
Compounds of the formula ##STR1## in which A.sub.1 and A.sub.2 independently of one another are CO--C.sub.1 -C.sub.4 alkyl, COO--C.sub.1 -C.sub.4 alkyl, CO--CF.sub.3, CO--N(R).sub.2 or cyano;A.sub.1 and A.sub.2 together are CO(X).sub.n --C.sub.1 -C.sub.3 alkylene-(X).sub.n CO, CO(X).sub.n --C.sub.1 -C.sub.3 alkylene-(X).sub.n CO which is substituted by C.sub.1 -C.sub.4 alkyl, COOR, CON(R).sub.2, cyano or phenyl, it being possible for the phenyl ring, in turn, to be substituted by halogen, methyl, trifluoromethyl, methoxy, nitro or cyano; CO--N(R)--CO--N(R)--CO;R is hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.6 alkenyl or C.sub.3 -C.sub.6 alkynyl;X is oxygen, sulfur or N(CH.sub.3);X.sub.1, X.sub.2 and X.sub.3 independently of one another are hydrogen, halogen, methyl, methylthio, methoxy or nitro;n is 0 or 1;including the salts of the compounds of the formula I with agriculturally acceptable organic or inorganic bases, and including the metal complexes; have valuable microbicidal properties.The novel compounds can be used in crop protection for preventing the attack of crop plants by phytopathogenic microorganisms and for the control of these pests.