Tantalum catalysts for the dimerization of olefins

Details Tantalum catalysts for the dimerization of olefins Tantalum catalysts for the dimerization of olefins

1987-03-16

1988-01-05

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

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

502158, C07C 226

Patent

active

047177837

ABSTRACT:
1-Butenes are selectively produced via the dimerization of 1-olefins in the presence of novel organotantalum catalysts comprising tantalum and a silyl-substituted cyclopentadienyl moiety having the formula C.sub.5 H.sub.5-x (SiR.sup.6.sub.3).sub.x, wherein each R.sup.6 may be the same or different and is hydrogen, alkyl, cycloalkyl, aryl, aralkyl or alkoxy, and x is an integer from 1 to 5.

REFERENCES:
patent: 4197419 (1980-04-01), Schrock
patent: 4231947 (1980-11-01), Schrock
patent: 4245131 (1981-01-01), Schrock
B. Bogdanovic, Advances in Organometallic Chemistry, 17 (1979), pp. 105-140.
S. Muthukumaru Pillai et al., Chemical Reviews, 86 (1986), pp. 353-399, (see pp. 359-360, 365, 375).
S. J. McLain, C. D. Wood, and R. R. Schrock, Journal of the American Chemical Society, 101 (1979), pp. 4558-4570.
S. J. McLain, J. Sancho, and R. R. Schrock, Journal of the American Chemical Society, 102 (1980), pp. 5610-5618.
P. A. Belmonte, F. G. N. Cloke, and R. R. Schrock, Journal of the American Chemial Society, 105 (1983), pp. 2643-2650.

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