Reactions of early-late heterobimetallics with oxiranes: New examples for cooperative reactivity |
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| Authors: | Attila Sisak Erzsébet Halmos |
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| Institution: | Research Group for Petrochemistry of the Hungarian Academy of Sciences, University of Veszprem, P.O. Box 151, H-8201 Veszprém, Hungary |
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| Abstract: | In the reaction of oxiranes and cobalt-containing early-late heterobimetallic (ELHB) compounds isolated or prepared in situ, acyl-cobalt complexes, Y3MEOCHRCH2C(O)Co(CO)4 (1, ME = Ti, Zr, Hf), were obtained. Some of the complexes 1 were isolated in form of their derivatives substituted on the cobalt atom with PPh3. We have demonstrated that the ELHB compounds containing Group 4 metals and silyl-cobalttetracarbonyls are analogous concerning their reactivity against oxiranes. The studied heterobimetallic systems mediated the rearrangement of terminal oxiranes to ketones. |
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| Keywords: | Early-late heterobimetallics Cooperative reactivity Oxiranes Acyl-tetracarbonylcobalts Ketone formation |
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