Process for the preparation of dialkylphosphinic mono-functionalized with carboxy and esters and salts by vinyl esters of a carboxylic acid acids and their use

摘要

Process for the preparation of dialkylphosphinic mono-functionalized carboxy acids, and susésteres and salts, characterized in that is reacted a) a phosphinic acid source (I) with olefins (IV) in the presence of a catalyst A for give alkylphosphonous acid, or / or their salts or esters (II) b) the alkylphosphonous acid or / or their salts or esters (II) resulting thereby, is reacted withan ester vinylic carboxylic acid (V) in the presence of a catalyst B to give the acid derivative dialkylphosphinic mono-functionalized (VI) c) the acid derivative dialkylphosphinic mono-functionalized (VI) is chemically converted in the presence of uncatalizador C in acid derivative dialkylphosphinic mono-functionalized (VII) d} acid derivative dialkylphosphinic mono-functionalized (VII) is reacted with an oxidizing agent ocon an oxidizing agent and water or in the presence of catalysed r D with oxygen and water to the acid-functionalized dialquilfosfínicomono carboxy (III)