Selective hydrogenation of cyclopentadiene to form cyclopentene

Chemistry of hydrocarbon compounds – Adding hydrogen to unsaturated bond of hydrocarbon – i.e.,... – Partial

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C07C 502

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active

041622715

ABSTRACT:
There is disclosed a process for the preparation of cyclopentene which comprises selectively hydrogenating cyclopentadiene in the liquid phase by contacting cyclopentadiene with hydrogen in the presence of a hydrogenation catalyst comprising a highly dispersed form of nickel in which an alcohol boiling above 99.degree. C. is employed in the reaction mixture.

REFERENCES:
patent: 2360555 (1944-10-01), Evans et al.
patent: 3022359 (1962-02-01), Wiese et al.
patent: 3937745 (1976-02-01), Wideman et al.

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