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Cobalt-mediated cyclotrimerization and cycloisomerization reactions. Synthetic applications
1999
Pure and Applied Chemistry
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This article reviews our contribution in the ®eld of the cobalt(I)-mediated cyclizations. The use of new unsaturated partners such as allenes extend the scope and the utility of the previously developed intramolecular [222] cyclotrimerization. The presence of chiral auxiliaries induced high level of diastereoselectivity in the enediynes cyclization. The discovery of cobalt(I) catalyzed ene-type reaction allows to propose an ef®cient route to the basic skeleton of tetracyclic diterpenes via a
doi:10.1351/pac199971081463
fatcat:6xbs4fgexnf4tmyrb5vmwaabou