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:
Jan. 04, 2011
Filed:
Apr. 19, 2006
Martin Kesselgruber, Basel, CH;
Marc Thommen, Nuglar, CH;
Matthias Lotz, Basel, CH;
Umicore AG & Co., KG, Hanau-Wolfgang, DE;
Abstract
A compound of the formula I or I', where the radicals Rare each, independently of one another, a hydrogen atom or C-C-alkyl and R′is C-C-alkyl; Xand Xare each, independently of one another, a sec-phosphino group; Ris (1) hydrogen, (2) RRRSi—, (3) C-C-acyl substituted with halogen, hydroxyl, C-C-alkoxy or RRN—, or (4) R—X—C(O)—; R, Rand Rare each, independently of one another, C-C-alkyl, unsubstituted or C-C-alkyl- or C-C-alkoxy-substituted C-C-aryl or C-C-aralkyl; Rand Rare each, independently of one another, hydrogen, C-C-alkyl, C-C-cycloalkyl, C-C-aryl or C-C-aralkyl, or Rand Rtogether are trimethylene, tetramethylene, pentamethylene or 3-oxapentylene; Ris C-C-alkyl, unsubstituted or C-C-alkyl- or C-C-alkoxy-substituted C-C-cycloalkyl, C-C-aryl or C-C-aralkyl; Xis —O— or —NH—; T is C-bonded C-C-heteroarylene; v is 0 or an integer from 1 to 4; Xin the heteroring of the heteroarylene is bound in the ortho position relative to the T—C* bond; and * indicates a mixture of racemic or enantiomerically pure diastereomers or pure racemic or enantiomerically pure diastereomers.