Tantalum catalysts for the dimerization of olefins

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

1987-07-17

1988-09-20

Garvin, Patrick P.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

502150, 502152, 502154, 502158, 502171, 502246, 585511, B01J 2320

Patent

active

047727349

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
"Substituted Biscyclopentadienyl Tantale Complexes; Synthesis and Reactivity of Dichlorides, TRI-and Monohydrides", LeBlanc et al., C. R. Acad. SC. Paris, t. 295 (8 Nov. 1982), Serdes II pp. 795-797.
P. A. Belmonte et al., Journal of the American Chemical Soc., 105, 2643-2650 (1983).
S. Muthukumaru Pillai et al., Chemical Reviews, 86, 353-399 (1986).
B. Bogdanovic, Advances in Organometallic Chemistry, 17, 105-140, (1979).
S. J. McLain et al., Journal of the American Chemical Society, 101, 4558-4570 (1979).
S. J. McLain et al., Journal of the American Chemical Society, 102, 5610-5618 (1980).

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