摘要:
2-(3-Pyrazolyloxymethylene)nitrobenzene [sic] derivatives of the formula I ##STR1## where the substituents and indices have the meanings given in the description,are prepared by bromination of an o-nitrotoluene of the formula II ##STR2## and subsequent reaction with a 3-hydroxypyrazole of the formula IV ##STR3##
摘要:
A process is described for preparing N-substituted 3-hydroxypyrazoles of the formula I ##STR1## where R.sup.1 is unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl or heteroaryl andR.sup.2, R.sup.3 are hydrogen, cyano, halogen and unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl or heteroaryl,by oxidizing a corresponding pyrazolidin-3-one.
摘要:
The invention relates to a method for producing N-acylated (hetero)aromatic hydroxylamine derivatives of formula (I), wherein the substituents, the ring atom and the index have the meanings give in the Description, by hydrogenating a (hetero)aromatic nitro-compound of general formula (II) in the presence of a hydrogenation catalyst.
摘要:
Substituted benzyl bromides of the formula I ##STR1## where at least one substituent R.sup.1-5 is an electron-attracting group such as fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkoxycarbonyl, cyano or nitro, and the other substituents R.sup.1-5 are hydrogen or methyl,are prepared by bromination of substituted toluenes of the formula II ##STR2## with a brominating agent at from 20 to 95.degree. C.
摘要:
Halomethylbenzoyl cyanides I PH--CO--CN (I) where Ph is phenyl which is substituted by chloromethyl or bromomethyl and may cary 1-4 other rradicals, are prepared from halomethylbenzoyl chlorides II PH--CO--Cl (II), by reacting II with a cyanide-donating compound in the presence of a Lewis acid, if required in an inert organic solvent or diluent, and then isolating the product. The halomethylbenzoyl cyanides I are important intermediates for synthesizing crop protection agents.
摘要:
A process and intermediates for preparing .alpha.-methoxyiminocarboxylic acid methylamides (I) by Pinner reaction of a cyanoketone (II) with an alcohol and subsequent reaction of the resulting ester (IV) with hydroxylamine to give the oxime (V), methylation of (V) to give the oxime ether (VI) and subsequent reaction of (VI) with methylamine: ##STR1##
摘要翻译:一种通过氰基酮(II)与醇的缩合反应制备α-甲氧基亚氨基羧酸甲基酰胺(I)的方法和中间体,随后将所得酯(IV)与羟胺反应得到肟(V),(V )得到肟醚(Ⅵ),随后的(Ⅵ)与甲胺的反应:X =硝基,三氟甲基,卤素,烷基或烷氧基; n = 0,1,2,3或4; Y = C-有机基团。
摘要:
A process for preparing oxime ethers of the general formula I ##STR1## where R.sup.1 is a C-organic radical, R.sup.2 is hydrogen, alkoxy, cyano, nitro, SOR.sup.4, SO.sub.2 R.sup.4, CO.sub.2 -alkyl, P(O)(OR.sup.4).sub.2 or a C-organic radical, and R.sup.3 and R.sup.4 are unsubstituted or substituted C.sub.1 -C.sub.6 -alkyl, entails converting an oxime of the general formula II ##STR2## where the substituents R.sup.1 and R.sup.2 have the abovementioned meanings, in the presence or absence of an organic diluent, with a base into the corresponding salt, and reacting the latter with a dialkyl carbonate of the general formula III ##STR3## where R.sup.3 has the abovementioned meanings.
摘要:
E-Oxime ethers of phenylglyoxylic esters of the formula I ##STR1## X, Y=halogen, alkyl, alkoxy, CF.sub.3, C(.dbd.NOR)R (R=alkyl or alkenyl) are prepared by reacting oximes of the formula II ##STR2## with a methylating agent in an organic diluent, and E-oximes of phenylglyoxylic esters of the formula II are prepared by isomerizing the E/Z-oximes.
摘要:
A fungicidal mixture containinga) the oxime ether carboxamide of the formula I ##STR1## and either b.1 the oxime ether carboxylic acid ester of the formula II ##STR2## or b.2 the methoxyacrylic acid ester of the formula III ##STR3## in a synergistically active amount is described.
摘要:
.beta.-Substituted cinnamic acid derivatives of the formula 1, ##STR1## where R.sup.1 is substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl, and R.sup.1 can also be chlorine or bromine,--X-- is --O--, --S--, ##STR2## m is 0 or 1, --Y is --OR.sup.4, --O--N.dbd.CR.sup.5 R.sup.6, --NR.sup.7 R.sup.8, --NR.sup.7 R.sup.8, --N(OR.sup.9)R.sup.10 or SR.sup.11, where the abovementioned substitutes R.sup.2 to R.sup.11 are substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkenyl, and R.sup.2, R.sup.3 and R.sup.5 to R.sup.11 can be hydrogen and Z, U, V, W are defined in the specification.
摘要翻译:式1的β取代肉桂酸衍生物,其中R 1是取代或未取代的烷基,烯基,炔基,环烷基或环烯基,R 1也可以是氯或溴,-X-是-O-,-S - , - Y是-OR 4,-ON = CR 5 R 6,-NR 7 R 8,-NR 7 R 8,-N(OR 9)R 10或SR 11,其中上述取代基R 2至R 11是取代或未取代的烷基, 烯基,炔基,环烷基或环烯基,R2,R3和R5至R11可以是氢,Z,U,V,W在说明书中定义。