Parallel transformations of cyclohexene mediated by the Cp*W(NO) fragment |
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Authors: | Jin Xing Legzdins Peter Buschhaus Miriam S A |
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Institution: | Department of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1. |
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Abstract: | Hydrogenolysis of Cp*W(NO)(CH2CMe3)2 at room temperature in cyclohexene results in the formation of the intermediate 16e organometallic complex, Cp*W(NO)(eta2-cyclohexene)]. This intermediate leads to three parallel transformations of cyclohexene, namely (a) C-H activation of cyclohexene to form an eta3-cyclohexenyl hydrido complex, (b) combination of cyclohexene and H2 to form a cyclohexyl hydrido complex, and (c) coupling of two molecules of cyclohexene with concomitant loss of two hydrogen atoms to form a complex containing a novel eta1,eta3-(cyclohexyl)cyclohexenyl ligand. Single-crystal X-ray crystallographic analyses of products resulting from transformations (b) and (c) have been effected. |
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