Abstract: A method of preparing a water-soluble or water-dispersible pesticidal composition is described. The pesticidal composition is prepared in a continuous process by intimately mixing a Bronsted acid precursor of the pesticidally active compound with a Bronsted base under reaction conditions in an extruder. The reaction is performed with minimal solvent and under conditions where the water of reaction volatilizes during the course of the reaction.

Abstract: An improved process is disclosed for the preparation of N-phosphonomethylglycine by the oxidation of N-phosphonomethyliminodiacetic acid. In the process N-phosphonomethyliminodiacetic acid is oxidized with a peroxide to form an intermediate, N-phosphonomethyliminodiacetic acid-N-oxide, and thereafter, adding a metabisulfite compound in the presence of a molybdenum compound to convert the intermediate to N-phosphonomethylglycine.

Abstract: A process is provided for producing N-phosphonomethylglycine by the oxidation of N-phosphonomethyliminodiacetic acid with a peroxide to form an intermediate N-phosphonomethyliminodiacetic acid-N-oxide. Thereafter, the N-phosphonomethyliminodiacetic acid-N-oxide is converted to N-phosphonomethylglycine by adding a catalytic amount of a metal selected from the group consisting of iron, zinc, aluminum, vanadium and copper, or a compound selected from the group consisting of water-soluble vanadium compounds, ferrous salts and cuprous salts.

Abstract: N-phosphonomethyl glycine is prepared by the reaction of glycine with an aqueous-alcoholic solution of formaldehyde in the presence of a base selected from the group consisting of alkali and alkaline-earth metal hydroxides, the reaction of the solution thus obtained with a trialkylphosphite and hydrolysis in an aqueous medium, with recovery of the N-phosphonomethyl glycine by crystallization.

Abstract: Disclosed are some new aminoethylphosphinic acid derivatives useful as antibacterial agents.

Abstract: A process is provided to produce N-phosphonomethylglycine by the oxidation of N-phosphonomethyliminodiacetic acid to form an intermediate N-phosphonomethyliminodiacetic acid-N-oxide with a peroxide in the presence of an effective amount of a catalyst selected from the group consisting of water-soluble tungsten compounds and a mixture of water-soluble tungsten compounds and a water-soluble molybdenum compound to form the intermediate, and thereafter converting the intermediate N-phosphonomethyliminodiacetic acid-N-oxide to N-phosphonomethylglycine.

Abstract: The invention relates to an improvement of a process for preparing N-phosphonomethyl-glycine by oxydation of N-phosphonomethyl-imino-diacetic acid in an aqueous sulphuric acidic medium with hydrogen peroxide.A characteristic feature is using a waste acid liquor as reaction medium formed as aqueous sulphuric acid and obtained after the separation of N-phosphonomethyl-glycine when carrying out oxydation. This solution is optionally diluted with water until a concentration of 12-18 weight % of sulphuric acid and 3-5 weight % of N-phosphonomethyl-glycine.

Abstract: A process for producing N-phosphonomethylglycine by the oxidation of N-phosphonomethyliminodiacetic acid using a molecular oxygen-containing gas in the presence of a transition metal catalyst.

Abstract: There is disclosed a process for producing the alkali metal salts of N-phosphonomethylglycine which comprises heating to an elevated temperature a di-alkali metal salt of N-alkyl-N-(2-hydroxyethyl)aminomethylphosphonic acid.

Abstract: A process for the production of N-phosphonomethylglycine comprising contacting N-phosphonomethyliminodiacetic acid with a molecular oxygen-containing gas in the presence of a catalyst selected from the group consisting of the salts and salt complexes of manganese, cobalt, iron, nickel, chromium, ruthenium, aluminum, moleybdenum, vanadium and cerium, and an effective amount of a dipyridyl compound.

Abstract: The present invention describes a novel compound, 2-azabicyclo[2.2.1]hept-5-ene-2-acetic acid, its preparation and the preparation of related compounds and the use of said compounds as intermediates for the preparation of N-phosphonomethylglycine.

Abstract: The invention relates to the preparation of N-phosphono-methyl-imino-diacetic acid from the calcium salt of imino-diacetic acid in a simplified synthesis. The process comprises in that the imino-diacetic acid calcium salt is heated with concentrated hydrochloric acid in a molar ratio of 2-3:1 at a temperature between 50.degree.-100.degree. C., the obtained imino-diacetic acid hydrogen-chloride is separated then dissolved in water and is reacted with phosphorous acid in a molar ratio of 1.0-1.2:1 calculated for imino-diacetic acid hydrogen chloride and with the aqueous solution of formaldehyde in a molar ratio of 1.0-1.4:1 under stirring, and the obtained product is isolated.

Abstract: N-phosphonomethylglycine can be produced by contacting N-phosphonomethyliminodiacetic acid with a molecular oxygen-containing gas in the presence of an effective amount of a catalyst selected from the group consisting of the salts and salt complexes of manganese and cobalt, and an effective amount of bromide ion.

Abstract: A process for producing N-phosphonomethylglycine by the oxidation of N-phosphonomethyliminodiacetic acid using a molecular oxygen-containing gas in the presence of a transition metal catalyst.

Abstract: A process is disclosed for the preparation of N-phosphonomethylglycine which comprises bringing together under reaction conditions glyoxylic acid or a derivative thereof and an N-acylaminomethylphosphonic acid represented by the formula ##STR1## wherein R is selected from the group consisting of alkyl having from one to about 6 carbon atoms, haloalkyl having from one to about six carbon atoms, benzyl and phenyl.

Abstract: The invention relates to a process for the preparation of N-phosphonomethylglycine of the formula I ##STR1## wherein a compound of the formula II or salts and esters thereof ##STR2## in which R.sub.1 and R.sub.2 denote hydroxyl or a hydrolyzable group and R.sub.3 denotes aryl, is reacted in a closed reaction vessel in the presence of a dehydrogenation catalyst and a hydrogenation catalyst with an alkali metal hydroxide or alkaline earth metal hydroxide in water as the solvent and, when the reaction has ended, a mineral acid is added to liberate N-phosponomethylglycine from its salt.