Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 53, Issue 37, Pages 9931-9935Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201406072
Keywords
catalysis; CH functionalization; enyne; oxidation; rhodium
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Funding
- EPSRC [EP/J018090/1]
- EPSRC [EP/I004769/2, EP/J018090/1, EP/I004769/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J018090/1, EP/I004769/2, EP/I004769/1] Funding Source: researchfish
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1,3-Enynes containing allylic hydrogens cis to the alkyne are shown to act as one-carbon partners, rather than two-carbon partners, in various rhodium-catalyzed oxidative annulations. The mechanism of these unexpected transformations is proposed to occur through double CH activation, involving a hitherto rare example of the 1,4-migration of a Rh-III species. This phenomenon is general across a variety of substrates, and provides a diverse range of heterocyclic products.
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