PROCESS FOR THE PREPARATION OF PHENOXYPROPIONIC ACIDS AND THEIR ALKALI METAL SALTS

Process for the preparation of (phenoxy-, benzyl- or pyridyloxy-)-phenoxypropionic acids by simultaneous addition of 2-chloropropionic acid (ester) and the double molar amount of an aqueous alkali hydroxide to a solution of a phenoxyphenol, benzylphenol or pyridyloxyphenol in a solvent forming an az...

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Bibliographische Detailangaben
Hauptverfasser:	KOCH, MANFRED, NESTLER, HANS J
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY FISHING FORESTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HUNTING METALLURGY ORGANIC CHEMISTRY PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TRAPPING
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Beschreibung
Zusammenfassung:	Process for the preparation of (phenoxy-, benzyl- or pyridyloxy-)-phenoxypropionic acids by simultaneous addition of 2-chloropropionic acid (ester) and the double molar amount of an aqueous alkali hydroxide to a solution of a phenoxyphenol, benzylphenol or pyridyloxyphenol in a solvent forming an azeotropic mixture with water, while continuously distilling off the water formed or introduced.