Tetrahedron p. 5113 - 5128 (1999)
Update date:2022-07-31
Topics:
Renaud, Jean-Luc
Aubert, Corinne
Malacria, Max
The preparation of δ-substituted ε-acetylenic β-ketoesters is fully described. Their cobalt-mediated Conia-ene reactions led to variously functionalized methylenecyclopentanes in high yields land with a moderate control of the 1,4 diastereoselectivity. A sequence involving the cobalt- mediated ene and Pauson-Khand reactions is presented and allowed the construction of the angular triquinane framework.
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