Z‐Selective Copper(I)‐Catalyzed Alkyne Semihydrogenation with Tethered Cu–Alkoxide Complexes |
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| Authors: | Felix Pape Niklas O Thiel Dr Johannes F Teichert |
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| Institution: | Institut für Chemie, Technische Universtit?t Berlin, Stra?e des 17. Juni 115, 10623 Berlin (Germany) |
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| Abstract: | A highly stereoselective alkyne semihydrogenation with copper(I) complexes is reported. Copper–N‐heterocyclic carbene complex catalysts, bearing an intramolecular Cu?O bond, allow for the direct transfer of both hydrogen atoms from dihydrogen to the alkyne. The corresponding alkenes can be isolated with high Z selectivity and negligible overreduction to the alkane. |
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| Keywords: | alkynes copper homogeneous catalysis hydrogenation stereoselectivity |
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