4.7 Article

Rhodium-catalyzed enantio- and diastereoselective intramolecular [2+2+2] cycloaddition of unsymmetrical dienynes

Journal

CHEMICAL COMMUNICATIONS
Volume -, Issue 32, Pages 3804-3806

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/b804294b

Keywords

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Funding

  1. Ministry of Education, Culture, Sports, Science and Technology Japan [19350046, 20675002]

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A cationic rhodium(I)/(R)-H-8-BINAP or (R)-Segphos complex catalyzes an intramolecular 12 + 2 + 21 cycloaddition of unsymmetrical dienynes, leading to fused tri- and tetracyclic cyclohexenes bearing two tertiary or quaternary carbon centers in high yields with high enantio- and diastereoselectivity.

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