Dimerization of olefins using tantalum and niobium catalysts

Details Dimerization of olefins using tantalum and niobium catalysts Dimerization of olefins using tantalum and niobium catalysts

1979-07-02

1981-01-13

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

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

585520, C07C 226

Patent

active

042451310

ABSTRACT:
Tantalum and niobium catalysts or catalyst precursors of the formula: ##STR1## wherein R is cyclopentadienyl, which can be substituted with methyl up to five positions, or neopentylidene, R.sup.1 is neopentyl or benzyl, n is 0 or 1, R.sup.2 is neopentylidene, benzylidene, tetramethylene, or 2,3-dimethyltetramethylene, A is halo or a moiety of the formula YR.sup.3 R.sup.4 R.sup.5 wherein Y is a group 5 element including N, P, As, Sb and Bi and R.sup.3, R.sup.4, R.sup.5 can be the same or different and are C.sub.1 -C.sub.4 alkyl, aralkyl such as naphthyl, neophyl, tolyl or xylyl, aryl such as benzyl or phenyl or bipyridyl and Z is tantalum or niobium. The compounds selectively dimerize 1-olefins to 1-butenes; m=1 or 2.

REFERENCES:
patent: 3932477 (1976-01-01), Schrock
patent: 3933876 (1976-01-01), Tebbe
patent: 3988332 (1976-10-01), Schrock
patent: 3992472 (1976-11-01), Urry
patent: 4021429 (1977-05-01), Schrock
patent: 4197419 (1980-04-01), Schrock

Affiliated with

Also associated with

Rating

Dimerization of olefins using tantalum and niobium catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dimerization of olefins using tantalum and niobium catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dimerization of olefins using tantalum and niobium catalysts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2232834