Modified supported metathesis catalysts

Details Modified supported metathesis catalysts Modified supported metathesis catalysts

2006-12-05

2006-12-05

Wood, Elizabeth D. (Department: 1755)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By alkyl transfer, e.g., disproportionation, etc.

C585S647000, C585S353000, C585S354000

Reexamination Certificate

active

07145050

ABSTRACT:
The invention relates to modified supported catalysts based on Re2O7/γ-Al2O3for use in the preparation of cycloalkadienes in a metathesis reaction, a process for preparing cycloalkadienes in the presence of these supported catalysts and the use of the resulting cycloalkadienes for the preparation of fragrances.

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J.C. Mol, Olefin Metathesis Over Supported Rhenium Catalysts, 1999, vol. 51, pp. 289-299, paragraphs 3.1.1, 3.1.3 and 03.2, no month.
J. Hietala et al, The Surface Acidity of Pure and Modified Aluminas in Re/A1203 Metathesis Catalysts as Studied by 1H MAS NMR Spectroscopy and Its Importance in the Ethenolysis od 1,5-Cyclooctadiene, 1984, vol. 150, pp. 46-55, examples 14-18, 21 and 22, table 1, pp. 26 and 47, no month.
Kawai et al, Metathesis of N-Alkenes Over a CsN03-Re207-A1203 Catalyst, 1988, vol. 46, pp. 157-172, p. 158, no month.
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