Process for the catalytic cyclodimerization of cyclic olefins

Details Process for the catalytic cyclodimerization of cyclic olefins Process for the catalytic cyclodimerization of cyclic olefins

1993-12-09

1996-08-13

Achutamurthy, P.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

585 20, 585361, 585520, C07C 200

Patent

active

055457908

ABSTRACT:
A catalytic process for the dimerization of norbornene and/or norbornadiene using a reduced valence state Group VIB metal oxide as the catalyst, preferably Cr(II) on a porous support such as silica. The product norbornene dimer or norbornadiene dimer is obtained in high yield and high stereospecificity at greater than 90 weight percent of the exo-trans-exo stereoisomer. The norbornene dimer is useful as a high energy density fuel. The norbornadiene dimer can be further functionalized to yield novel chemical intermediates or polymerized or copolymerized with other olefins. The norbornadiene dimer can also be hydrogenated for high energy fuel applications.

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