Borealis Ag

Igm Group B.v.

Kai Uwe Luckner

Reinhard Sommerlade

Reinhard H Sommerlade

The present invention refers to a process for the preparation of a bis(acyl)phosphinic acid silyl ester of the general formula (I), wherein R, R, R, R, R, R, R, R, Rand Rare the same or different and are independently selected from H, halogen, linear or branched C-C-alkyl, linear or branched C-C-alkenyl, C-C-alkoxy, C-C-alkenyloxy, C-C-cycloalkyl, C-C-aryl, C-C-cycloalkoxy, C-C-arylalkoxy, C-C-alkenylarylalkoxy, nitro-, C-C-arylsulfonyl, 4-alkylarylsulfonyl, C-C-alkylcarboxy, C-C-alkoxycarbonyl, SR, NHRor NRRwith Rand Rbeing independently selected from H, linear or branched C-C-alkyl, linear or branched C-C-alkenyl and C-C-cycloalkyl, and an O-, S- or N-containing 5- or 6-membered heterocyclic ring; Ris OSiRRRwith R, Rand Rbeing independently selected from linear or branched C-C-alkyl or C-C-aryl; as well as the bis(acyl)phosphinic acid silyl ester and the bis(acyl)phosphinic acid obtained by the process. 

Growing community of inventors

Inzlingen, Germany

Kai Uwe Luckner