Patent ID: 8604108
Filing Date: 2013-12-10
Classification: C07F,C08K,C09K

Abstract:
1. A method for producing monohydroxy-functionalized dialkylphosphinic acids, esters or salts by means of acroleins, comprising the steps of: a) reacting a phosphinic acid source (I) with olefins (IV) in the presence of a catalyst A to form an alkylphosphonous acid, salt or ester (II) b) reacting the alkyllphosphonous acid, salt or ester (II) with an acrolein (V) in the presence of a catalyst B to form a monofunctionalized dialkylphosphinic acid derivative (VI) and c) reacting the monofunctionalized dialkylphosphinic acid derivative (VI) with a reducing agent or in the presence of a catalyst C with hydrogen monohydroxy-functionalized dialkylphosphinic acid derivative (III) where R