The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2020
Filed:
Jun. 27, 2018
Igm Group B.v., Waalwijk, NL;
Reinhard H. Sommerlade, Neuenburg am Rhein, DE;
Kai Uwe Luckner, Inzlingen, DE;
Abstract
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.