Metathesis catalysts

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...

Reexamination Certificate

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Details

C502S152000, C502S167000, C502S155000, C526S072000, C526S281000

Reexamination Certificate

active

07612008

ABSTRACT:
The invention relates to polymeric transition metal catalysts, to processes for preparing them, to intermediates and also to the use of the transition metal catalysts as catalysts in organic reactions, in particular in olefin metathesis reactions.

REFERENCES:
patent: 4839322 (1989-06-01), Yodice
patent: 4883851 (1989-11-01), Grubbs et al.
patent: 5854299 (1998-12-01), Muhlebach et al.
patent: 32 26 865 (1984-01-01), None
patent: 400 903 (1990-05-01), None
patent: 2 238 791 (1991-06-01), None
patent: 02/14376 (2002-02-01), None
patent: WO 02/14376 (2002-02-01), None
DATABASE WPI Section Ch, Week 198708 Derwent Publications Ltd., London, GB: Class A26, AN 1987-054598, XP002265197 & JP 62 011720 A (Mitsui Toatsu Chem Inc) Jan. 20, 1987 Zusammenfassung.
T.M. Tmka, R.H. Grubbs, Acc. Chem. Res. 2001, 34, 18-29, “The Development of L2X2Ru=CHR Olefin Metathesis Catalysts: An Organometallic Success Story”.
Van Veldhuizen et al., J. Am. Chem. Soc. 2002, 124, 4954-4955, “A Recycable Chiral Ru Catalysts for Enantioselective Olefin Metathesis. Efficient Catalytic Asymmetric Ring-Opening/Cross Metathesis in Air”: Supporting info pp. 1-32.
Gessler et al., Tetrahedron Letters 41 (month unavailable) (2000) 9973-9976; “Synthesis and metathesis reactions of a phosphine-free dihydroimidazole carbene ruthenium complex”.

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