Basf Aktiengesellschaft

Badische Anilin- & Soda-Fabrik Aktiengesellschaft

Rolf Huber

Karl Kiehs

Heinrich Adolphi

Annegrit Baumann

Gerhard Hamprecht

Franz Merger

Adolf Fischer

Karl Keihs

New pyridazinonyl-(di)(thio)-phosphoric (phosphonic) acid esters of the formula ##STR1## where X and Y each denote oxygen or sulfur, R.sup.1 denotes linear or branched alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, mono- or dialkylamino of 1 to 4 carbon atoms in each alkyl, phenyl, or benzyl, R.sup.2 denotes linear or branched alkyl of 1 to 4 carbon atoms, phenyl or benzyl, R.sup.3 denotes linear or branched alkyl of 1 to 4 carbon atoms or phenyl, R.sup.4 denotes linear or branched alkyl of 1 to 4 carbon atoms, or R.sup.3 and R.sup.4, together with the oxygen and the carbon atom whose substituents they are, form a 5- or 6 membered saturated ring which may be substituted by alkyl of 1 to 4 carbon atoms, which are effective against pests, especially insects and Arachnida, pesticides containing these pyridazinonyl-(di)(thio)-phosphoric (phosphonic) acid esters as active ingredients, and a process for combating pests with these active ingredients. The present invention relates to new pyridazinonyl-(di) (thio)-phosphoric (phosphonic) acid esters, a process for their manufacture, and pesticides, especially insecticides and acaricides, containing these compounds as active ingredients.

Pyridazinonyl-(di)(thio)-phosphoric (phosphonic) acid esters as

New carbamates, a process for their manufacture by reaction of salts of pyrazolinediones with a carbamyl halide, and pesticides containing these new carbamates as active ingredients. The new carbamates may be used as insecticides and acaricides. They have an excellent action on sucking insects, especially aphids.

Insecticidal carbamates

Compounds of the formula: ##STR1## are disclosed which compound are used to prepare carbamates which are stated to have utility as plant protecting agents and insecticides.

Pyrocatechol ethers

New and valuable pyrocatechol derivatives and a process for their preparation. The pyrocatechol derivatives have the formula ##STR1## wherein: R denotes alkyl of from 1 to 4 carbon atoms which may be substituted with halogen; alkenyl having up to 4 carbon atoms which may be substituted with halogen; alkynyl having up to 5 carbon atoms which may be substituted with halogen; or benzyl;

Pyrocatechol derivatives

New O,O-dialkylphosphonic acid esters having a strong insecticidal action, insecticides containing these compounds as active ingredients, a method of controlling insects, and a method for the preparation of the active ingredients.

Method of controlling insects with O,O-dialkylphosphonic acid esters and

New and valuable substituted succinic acid oximidophosphoric esters having a strong insecticidal action, pesticides containing these compounds as active ingredients, a process for controlling pests with these compounds, and a process for their production.

Succinic acid oximidophosphoric ester insecticides

New and valuable carbamates containing alkoxy groups and a process for controlling pests with these compounds.

Carbamate

Succinic acid oximidophosphoric esters

New and Valuable substituted 2,1,3-benzothiadiazin-(4)-one-2,2-dioxides having a good herbicidal action and a process for controlling the growth of unwanted plants with these compounds.

Growing community of inventors

Ludwigshafen, Germany

Rolf Huber