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 the preparation of largely isomerically pure .alpha.-bisoximes of the formula IaR.sup.1 O--N.dbd.CR.sup.2 --CR.sup.3 .dbd.N--OR.sup.4 Iawhere the groups R.sup.1 O-- and R.sup.2 on the N.dbd.C bond are cis to one another and where the radicals have the following meanings:R.sup.1 and R.sup.4 are hydrogen or a C-organic radical;R.sup.2 is hydrogen, cyano, nitro, hydroxyl, amino, halogen or an organic radical which can be bonded to the structure directly or via an oxygen, sulfur or nitrogen atom;R.sup.3 is hydrogen, cyano, nitro, hydroxyl, amino, halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, alkylamino, dialkylamino or cycloalkyl,from a mixture of the isomers of the a-bisoximes Ia and Ib ##STR1## is described.
摘要:
E-oxime ethers of phenylglyoxylic esters of the formula I ##STR1## where X and Y are each halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or trifluoromethyl;m is an integer from 0 to 4;n is an integer from 0 to 3;are prepared.
摘要:
Pyrazolo pyrimidines of the formula I ##STR1## where the indices and the substituents have the meanings defined in the specification, processes for their preparation and their use are described.
摘要:
A process for preparing an o-iminooxymethylbenozic acid of the general formula I ##STR1## comprises reacting an oxime of the general formula II ##STR2## with a lactone of the general formula III ##STR3## if appropriate in the presence of a base or of a diluent, and o-iminooxymethylbenzoic acids of the abovementioned formula.
摘要:
Herbicidally active cyclohexenone oxime ether metal salts of formula I ##STR1## where R.sup.a, R.sup.b, R.sup.c, R.sup.d, R.sup.e, Alk and R.sup.f are as defined in the specification disclosure, having an improved shelf life and thermal stability and reduced water vapor uptake.