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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.:

US 9108996 B1

PDFFull Text
Date of Patent:
Aug. 18, 2015

Filed:

Mar. 13, 2013

Ruthenium-based metathesis catalysts and precursors for their preparation

Applicant:

Umicore Ag & Co. KG, Hanau, DE;

Inventors:

Herbert Plenio, Bensheim, DE;

Lars Peeck, Butzbach, DE;

Assignee:

UMICORE AG & CO. KG, Hanau, DE;

Attorney:

Smith, Gambrell & Russell, LLP

Primary Examiner:

Joseph Kosack

Int. Cl.
CPC ...
C07F 15/00 (2006.01); C07C 211/55 (2006.01); C08G 61/08 (2006.01); C07D 207/48 (2006.01); C07C 67/333 (2006.01); B01J 31/18 (2006.01); B01J 31/22 (2006.01); C07C 67/30 (2006.01); C07C 211/54 (2006.01); C07D 207/20 (2006.01);
U.S. Cl.
CPC ...
C07F 15/0046 (2013.01); B01J 31/181 (2013.01); B01J 31/2265 (2013.01); B01J 31/2295 (2013.01); C07C 67/30 (2013.01); C07C 67/333 (2013.01); C07C 211/54 (2013.01); C07C 211/55 (2013.01); C07D 207/20 (2013.01); C07D 207/48 (2013.01); C08G 61/08 (2013.01); B01J 2231/543 (2013.01); B01J 2531/821 (2013.01); C07C 2101/10 (2013.01); C08G 2261/418 (2013.01); C08G 2261/419 (2013.01);
Abstract

The invention is directed to ruthenium-based metathesis catalysts of the Hoveyda-Grubbs type. The new N-chelating diarylamino-based ruthenium catalysts described herein are stable in solid state and in solution and reveal rapid initiation behavior. Further, the corresponding N-substituted styrene precursor compounds are disclosed. The catalysts are prepared in a cross-metathesis reaction starting from N-substituted styrene precursors. The new Hoveyda-Grubbs type catalysts are suitable to catalyze ring-closing metathesis (RCM), cross metathesis (CM) and ring-opening metathesis polymerization (ROMP). Low catalyst loadings are sufficient to convert a wide range of substrates via metathesis reactions.

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