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46.5.5 1,3-Dienes Having Endocyclic and Exocyclic Double Bonds

DOI: 10.1055/sos-SD-046-00090

Gandon, V.; Thorimbert, S.; Malacria, M.Science of Synthesis, (200946227.

Methylenecycloalkenes can be prepared from cyclic enones by alkenation, and some approaches involve the transition-metal-catalyzed cycloisomerization of enynes or al­len­ynes; in this type of chemistry platinum- and gold-catalyzed reactions are most frequently encountered.