Metathesis catalysts

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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Details

Other Related Categories

C548S262200, C548S300100, C560S008000

Type

Reexamination Certificate

Status

active

Patent number

10901785

Description

ABSTRACT:
The present invention relates to new compounds of formula 1, the preparation thereof, intermediate products for preparing them and the use of the compounds of formula 1 as catalysts in various metathesis reactionsThe new metathesis catalysts, which are obtained from readily accessible preliminary products, have a high activity and can be used for all kinds of metathesis reactions.

REFERENCES:
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patent: 2004/0127350 (2004-07-01), Grela
patent: 59118721 (1984-07-01), None
patent: WO0214376 (2002-02-01), None
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Tietze, Lutz, F.; Intra- and Intermolecular Hetero-Diels-Alder Reactions of Alkylidene-and Benzylidenepyrazolones and Benzylideneisoxazolones, Investigations toward the Conformation of the Transition State, J. Org. Chem. vol. 53 No. 4, 1998 (pp. 810-820).
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Nippon Zeon, C., Ltd., Japan; Addition reactions of unsaturated compounds; Japan Kokai Tokkyo Chemical Abstracts 102:8602 for JP 59 118721 (1984).
Wakamatsu, H., Ein hochaktiver und luftstabiler Rutheniumkomplex fur die Olefinmetathese; Agnew. Chem 2002, 114, No. 5, 832-834.
Wakamatsu, H., A New Highly Efficient Ruthenium Metathesis Catalyst; Agnew. Chem 2002, 114, No. 13, 2509-2511.
Grela, K., A Highly Efficient Ruthenium Catalyst for Methathesis Reactions; Agnew. Chem 2002, 114, No. 21, 4210-4212.
Dieter Arlt; Novel Ruthenium Catalyst; U.S. Appl. No. 11/004,113, filed Dec. 3, 2004.

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