Process for preparing 5-ethylidene-2-norbornene

Details Process for preparing 5-ethylidene-2-norbornene Process for preparing 5-ethylidene-2-norbornene

1986-08-15

1988-01-19

Pal, Asok

Chemistry of hydrocarbon compounds

Alicyclic compound synthesis

By double-bond shift

585363, C07C 525

Patent

active

047206012

ABSTRACT:
5-Ethylidene-2-norbornene is effectively prepared by isomerization 5-vinyl-2-norbornene in the presence of at least one catalyst selected from a group consisting of a solid base catalyst which is prepared by reacting alumina and an alkali metal hydroxide at a temperature of 200.degree. to 500.degree. C. and then reacting the reaction produce with an alkali metal at a temperature of 180.degree. to 350.degree. C. and a solid base catalyst which is prepared by reacting water-containing alumina and an alkali metal in such an amount that corresponds to a molar equivalent of water contained in alumina at a temperature in a range between a melting point of the alkali metal and 500.degree. C. and then reacting the reaction product with an alkali metal at a temperature of 180.degree. to 350.degree. C.

REFERENCES:
patent: 3897509 (1975-07-01), Nagase et al.

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