Ruthenium-catalyzed cycloisomerization of cis-3-en-1-ynes to cyclopentadiene and related derivatives through a 1,5-sigmatropic hydrogen shift of ruthenium-vinylidene intermediates |
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| Authors: | Datta Swarup Odedra Arjan Liu Rai-Shung |
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| Institution: | Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan, ROC. |
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| Abstract: | We report a new ruthenium-catalyzed cycloisomerization of unactivated cis-3-en-1-ynes, which produces substituted cyclopentadiene and related derivatives. The mechanism of this cyclization is proposed to involve a 1,5]-sigmatropic hydrogen shift of ruthenium-vinylidene intermediates on the basis of deuterium-labeling experiments. |
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