Bayer Aktiengesellschaft

Rudolf Thomas

Ludwig Eue

Robert R Schmidt

Jorg Stetter

Klaus Ditgens

Wolfgang Kramer

Ulrich Heinemann

Wilfried Draber

Klaus Lurssen

Reinhard Lantzsch

Gerhard Jager

Winfried Lunkenheimer

Carl Metzger

Erhard Weber

Hans-Joachim Santel

Hans-Jochem Riebel

Hans-Ludwig Elbe

Peter Babczinski

Eckart Kranz

Thomas Schmidt

Hermann Arold

Claus Stolzer

Carl Fedtke

Herbicidally active novel nicotinic acid derivatives of the formula ##STR1## in which X represents hydroxyl, alkoxy or the radical --OM, wherein

Certain 2-(5-hydrocarbyl or aryl-1-alkyl-pyrazol-3-yl)-nicotinic acid

Herbicidal compositions comprising ##STR1## and as a synergist an amide of the formula ##STR2## in which R is halogenoalkyl.

Herbicidal compositions of triazinone or triazinedione derivatives and

N-(Alkenyl)-chloroacetanilides of the formula ##STR1## in which R.sup.1 represents a hydrogen atom or an alkyl group,

Novel N-(1-alkenyl)-chloroacetanilides as herbicides and plant growth

The invention relates to new N-substituted halogenoacetanilides of the general formula ##STR1## in which R represents an optionally substituted N-containing heterocyclic radical,

Composition and method for combating weeds using an N-imidazolylmethyl

N-substituted halogenoacetanilides and their use as herbicides

Novel N-Diazolylalkyl-haloacetanilides of the formula ##STR1## wherein A is oxygen, sulphur or the grouping &lt;NR,

N-Diazolyalkyl-haloacetanilide compounds and herbicidal compositions

Process for the preparation of pyrazole from hydrazine hydrate and acrolein comprising reacting hydrazine hydrate with acrolein in an aqueous-organic medium at a temperature between 20.degree.-80.degree. C. and then oxidizing the 2-pyrazoline formed, of the formula ##STR1## either directly or after first being isolated, with chlorine or an alkali metal hypochlorite or an alkaline earth metal hypochlorite and water or an aqueous-organic medium at a temperature between 0.degree. and 60.degree. C.

Process for the preparation of pyrazole

Process for the preparation of pyrazole by heating a pyrazoline derivative of the general formula ##STR1## in which R represents an optionally substituted phenyl radical, or an alkyl or halogenoalkyl radical, without the addition of an acid or base, at a temperature between 100.degree. and 200.degree. C. under a pressure between 1 mbar and 10 bars, optionally in the presence of a diluent.

Herbicidal substituted N-pyrazolylmethyl-haloacetanilide compounds of the formula ##STR1## wherein Hal is halogen;

Substituted pyrazolylmethyl-haloacetanilide compounds and herbicidal

Novel N-Diazolylalkyl-haloacetanilides of the formula ##STR1## wherein A is oxygen, sulphur or the grouping &gt;NR, wherein

N-Diazolylalkyl-haloacetanilide compounds and herbicidal compositions

N-pyrimidinylmethyl-haloacetanilides of the general formula ##STR1## in which R.sup.1 represents hydrogen or alkyl,

N-Pyrimidinylmethyl-haloacetanilide compounds and herbicidal compositions

Novel N-(2,5-diazolyl)-alkyl-halogenoacetanilides of the general formmula ##STR1## in which A represents oxygen, sulphur or the grouping &gt;NR, wherein

N-(2,5-Diazolyl)-alkyl-haloacetanilides, compounds and herbicidal

Herbicidal compositions containing as active ingredients (1) 3-(3,4-dichlorophenyl)-1,1-dimethylurea of the formula ##STR1## and (2) at least one N-substituted halogenoacetanilide of the general formula ##STR2## in which R.sup.1 represents methyl or ethyl,

Herbicidal compositions

Novel N-azolylalkyl-aniline compound of the formula ##STR1## in which A is oxygen, sulfur or the radical &gt;NR.sup.2,

N-Azolylalkyl-anilines

In the reaction of 1-chloro-3,3-dimethylbutan-2-one with a phenol to form an ether-ketone, halogenating it to form a halogenoether-ketone and reacting it with imidazole or 1,2,4-triazole to form a 1-azolyl-3,3-dimethyl-1-phenoxybutan-2-one of the formula ##STR1## in which X is N or CH,

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Wuppertal, Germany

Rudolf Thomas