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Details for Patent: 5,969,166

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Summary for Patent: 5,969,166

Title: Epoxides produced by the oxidation of olefins with air or oxygen
Abstract:Catalysts for the selective epoxidization of olefins with atmospheric oxygen, processes for their preparation and processes for the preparation of epoxides by oxidation of olefins with air or oxygen. Compounds of the formula (1) as catalysts for the selective epoxidization of alkenes in which the indices x, y and z have the following meaning: x is a whole number from 1 to 3, y is a whole number from 1 to 2x+1, y being selected so that the sum of x+z gives a metal oxidation number of +5 (vanadium) or +6 (molybdenum, ruthenium); z is a whole number in the range from 2 to 2x; M is molybdenum, ruthenium or vanadium and L is an N, 0 or S donor ligand. Heterogeneous catalysts for the selective oxidation of olefins in the presence of oxygen, comprising an inorganic or organic support material and compounds of the formula (1), and a process for the selective epoxidization of alkenes of the formula ##STR1## with atmospheric oxygen in the presence of a catalyst of the formula (1) are also described.
Inventor(s): Scharbert; Bernd (Frankfurt, DE), Lobmaier; Gerhard (Gersthofen, DE), Herrmann; Wolfgang Anton (Freising, DE)
Assignee: Hoechst Aktiengesellschaft (Frankfurt, DE)
Application Number:08/860,261
Patent Claim Types:
see list of patent claims
Compound; Process;
Patent Metrics:
Source: PatentQuant.com
Field: Organic fine chemistry
Back Citations: 8th percentile
Forward Citations: 2nd percentile

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Premature patent expiration for: 5,969,166

Expiration due to failure to pay maintenance fee

Patent Number Expiration Date
5,969,166 October 20, 2003

Foreign Priority and PCT Information for Patent: 5,969,166

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany44 47 233Dec 09, 1904
Germany44 47 231Dec 30, 1994
Germany44 47 232Dec 30, 1994
PCT Information
PCT FiledDecember 19, 1995PCT Application Number:PCT/EP95/05027
PCT Publication Date:July 11, 1996PCT Publication Number: WO96/20788

International Patent Family for Patent: 5,969,166

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany4447232<disabled in preview>
Germany4447233<disabled in preview>
Germany4447231<disabled in preview>
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