Synthesis and unusual [2+2] cycloaddition reactions of haloacetylenes activated with the trifluoroacetyl group |
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| Authors: | A. B. Koldobskii N. P. Tsvetkov P. V. Verteletskii I. A. Godovikov V. N. Kalinin |
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| Affiliation: | 1.A. N. Nesmeyanov Institute of Organoelement Compounds,Russian Academy of Sciences,Moscow,Russian Federation;2.Department of Chemistry,M. V. Lomonosov Moscow State University,Moscow,Russian Federation |
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| Abstract: | Halogenated trifluoroacetylacetylenes have been synthesized for the first time. It was shown that they undergo formally forbidden by the orbital-symmetry rules [2+2] cycloaddition reactions with nonactivated alkenes in the absence of light and catalyst. A possible mechanism for this transformation is suggested. |
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