Patent ID: 9056881
Filing Date: 2015-06-16
Classification: C07F

Abstract:
1. A process for preparing a phosphinic acid ester of formula (I) where n in each case, independently of one another, denotes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12, y in each case, independently of one another, denotes 0, 1, 2, 3 or 4, R denotes unsubstituted or substituted phenyl, a straight-chain or branched, unfluorinated or partially fluorinated or deuterated alkyl group having 1 to 30 C atoms or a straight-chain or branched, unfluorinated or partially fluorinated alkenyl or alkynyl group having 3 to 30 C atoms, where R may be partially substituted by halogen and/or partially substituted by —OH, —C(O)OH, N(CH R′ in each case, independently of one another, denotes H, a straight-chain or branched, unfluorinated or partially fluorinated alkyl group having 1 to 18 C atoms, saturated C comprising reacting a phosphine oxide of formula (II) where n and y have a meanings indicated for formula (I), with an alcohol or phenol R—OH in the presence of alkali-metal fluoride or tetraalkylammonium fluoride, where R has a meaning indicated for formula (I), where the water content in the reaction is in total a maximum of 1000 ppm and where alkyl in tetraalkylammonium in each case, independently of one another, denotes a straight-chain or branched alkyl group having 1 to 10 C atoms.