Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 136, Issue 21, Pages 7627-7630Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja504048u
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- Ministry of Education, Culture, Sports, Science and Technology (Japan) [25105714]
- ACT-C from the Japan Science and Technology Agency (Japan)
- Grants-in-Aid for Scientific Research [25105714] Funding Source: KAKEN
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It has been established that a cationic Rh(I)/(S)-Segphos or (S)-DTBM-Segphos complex and benzoic acid catalyze the enantioselective cycloisomerization of 1,6-enynes, possessing carbonyl groups at the enyne linkage, to 2-alkylidenebicyclo[3.1.0]hexanes. The present cycloisomerization may involve site selective gamma-hydrogen elimination. The one-pot enantioselective cycloisomerization and lactonization of 1,6-enynes, leading to bicyclic lactones, has also been accomplished.
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