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:
Aug. 23, 2011
Filed:
Nov. 13, 2007
Detlef Selent, Rostock, DE;
Armin Boerner, Rostock, DE;
Burkard Kreidler, Recklinghausen, DE;
Dieter Hess, Marl, DE;
Klaus-diether Wiese, Haltern am See, DE;
Detlef Selent, Rostock, DE;
Armin Boerner, Rostock, DE;
Burkard Kreidler, Recklinghausen, DE;
Dieter Hess, Marl, DE;
Klaus-Diether Wiese, Haltern am See, DE;
Evonik Oxeno GmbH, Marl, DE;
Abstract
The invention relates to a bisphosphite of the formula I where X=a divalent substituted or unsubstituted bisalkylene or bisarylene radical, Y=a divalent substituted or unsubstituted bisarylene or bisalkylene radical, Z=oxygen or NR, and R, R, R, Rare identical or different, substituted or unsubstituted, linked, unlinked or fused aryl or heteroaryl radicals and Ris hydrogen or a substituted or unsubstituted alkyl or aryl radical, a process for preparing it and also the use of this phosphite in catalysis in particular in the catalytic hydroformylation of olefins or organic compounds having C—C double bonds.