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Cobalt-Catalyzed Diastereoselective Reductive [3 + 2] Cycloaddition of Allenes and Enones

Hong-Tai Chang, Thiruvellore Thatai Jayanth, and Chien-Hong Cheng*

*Department of Chemistry, National Tsing Hua University, Hsinchu 30043, Taiwan, Email:

H.-T. Chang, T. T. Jayanth, C.-H. Cheng, J. Am. Chem. Soc., 2007, 129, 4166-4167.

DOI: 10.1021/ja0710196


The CoI2(dppe)-catalyzed diastereoselective reductive [3 + 2] cycloaddition of allenes and enones gives cyclopentanols in very good yields in the presence of zinc, zinc iodide, and water.

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Key Words

Cyclopentanols, Zinc

ID: J48-Y2007-1190