Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 13, Pages 3590-3593Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201612590
Keywords
annulation; C-H functionalization; cyclopentadienyl complexes; fulvenes; rhodium
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Funding
- ACT-C of JST (Japan)
- MEXT (Japan) [26102004]
- JSPS (Japan) [15H06201]
- Grants-in-Aid for Scientific Research [15H06201, 26102004] Funding Source: KAKEN
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It has been established that a RhI+/segphos complex catalyzes the [2+2+1] cycloaddition of 1,6-diynes with cyclopropylideneacetamides to give substituted fulvenes in good yields. The reductive complexation of the product fulvenes with RhCl3 in EtOH furnished the corresponding dinuclear cyclopentadienyl Rh-III complexes bearing a pendant amide moiety. These RhIII complexes were highly active catalysts for oxidative annulation and cyclization through C(sp(2))-H and C(sp(3))-H funct(i)onalization.
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