Journal of Organometallic Chemistry p. 213 - 220 (1985)
Update date:2022-08-11
Topics:
Chang, Biau-Hung
Lau, Chak-Po
Grubbs, Robert H.
Brubaker Jr., Carl H.
Polymer-attached CpNbCl4, CpNbCl3, CpNbCl2, Cp2Nb(BH4), CpTaCl4, (PhCH2)NbCl4 and (PhCH2)TaCl4 have been prepared. The reduction products of supported niobium and tantalum chlorides are active hydrogenation catalysts for olefins and for diphenylacetylene which was hydrogenated to 1,2-diphenylethane through intermediate stilbene. The similar reduction products have also been employed in catalytic isomerization of allylbenzene which is converted into a mixture of trans- and cis-propenylbenzene. Polymer-attached CpTaCl4, when treated with neopentyllithium, can effect dimerization of ethylene to give 1-butene.
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