Abstract: A process for the preparation of 3-substituted 4-cyano-pyrrole compounds of the formula (I) in which Ar has the meaning given in the description, by reaction in a 1st stage of bromides (II) Ar—Br  (II) with acrylonitrile in the presence of a solvent and a suitable reaction auxiliary to give acrylonitrile derivatives (III) Ar—CH═CH—CN  (III) and in a 2nd stage with a phenylsulphonylmethyl isocyanide (IV) Ph—SO2—CH2—CN  (IV) in the presence of a solvent and optionally in the presence of a suitable reaction auxiliary, characterised in that the the 1st stage is carried out in the presence of a palladium catalyst and the 2nd stage in the presence of a 1.2- to 1.8-fold molar excess of alkali metal alcoholate or alkali metal hydroxide.

Abstract: There are described new pyridyl derivatives of the formula (I) ##STR1## in which Ar and A have the meaning given in the description, their preparation, and new intermediates.The new compounds of the formula (I) are used as pesticides.

Abstract: There are described new triazinyl-substituted acrylic esters of the formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, X and Y have the meaning given in the description, and a process for their preparation.The new acrylic esters of the formula (I) are used for the preparation of pesticides.

Abstract: A process for the preparation of 3-substituted 4-cyanopyrrole compounds of the formula (I) ##STR1## in which Ar has the meaning given in the description, by reaction in a 1st stage of bromides (II)Ar--Br (II)with acrylonitrile in the presence of a solvent and a suitable reaction auxiliary to give acrylonitrile derivatives (III)Ar--CH.dbd.CH--CN (III)and in a 2nd stage with a phenylsulphonylmethyl isocyanide (IV)Ph--SO.sub.2 --CH.sub.2 --CN (IV)in the presence of a solvent and optionally in the presence of a suitable reaction auxiliary, characterised in that the 1st stage is carried out in the presence of a palladium catalyst and the 2nd stage in the presence of a 1.2- to 1.8-fold molar excess of alkali metal alcoholate or alkali metal hydroxide.

Abstract: There are described new triazinyl-substituted acrylic esters of the formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, X and Y have the meaning given in the description, and a process for their preparation.The new acrylic esters of the formula (I) are used for the preparation of pesticides.

Abstract: The invention relates to novel substituted 2,2-difluoro-1,3-benzodioxyl-4-ketones of the general formula (I) ##STR1## in which R.sup.1 represents a group from the series comprising --CN; --CO.sub.2 R.sup.5 or ##STR2## where R.sup.3 and R.sup.4 in each case independently of one another represent hydrogen, alkyl, alkenyl, alkylcarbonyl, formyl or optionally substituted aralkyl,R.sup.5 represents alkyl andR.sup.2 represents a group from the series comprising ##STR3## or --OR.sup.3, where R.sup.3 and R.sup.4 have the abovementioned meaning, a process for their preparation and their use as plant protection agents, in particular as herbicides.

Abstract: There are described new pyrimidyl-substituted acrylic esters of the general formula (I) ##STR1## in which Py, X, R.sup.1 and R.sup.2 have the meaning given in the description, a process for their preparation, and new intermediates.The compounds of the formula (I) are used as pesticides.

Abstract: There is described a new process for the preparation of substituted 3-aminoacrylic esters of the general formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, X and n have the meaning given in the description.The 3-aminoacrylic esters of the formula (I) are obtained by reacting acetic esters of the formula (II)R.sup.1 --(X).sub.n --CH.sub.2 --COOR.sup.