Palladium-Catalyzed [3 + 2] Intramolecular Cycloaddition of Alk-5-enylidenecyclopropanes

2006 Cyclopentane derivatives Q 0030 Palladium-Catalyzed [3 + 2] Intramolecular Cycloaddition of Alk-5-enylidenecy— The title compounds undergo a mild and stereoselective [3 + 2] intra21- 064 clopropanes. molecular cycloaddition upon treatment with appropriate palladium catalysts to give bicyclo[3.3.0]octane systems with three stereocenters. — (GULIAS, M.; GARCIA, R.; DELGADO, A.; CASTEDO, L.; MASCARENAS*, J. L.; J. Am. Chem. Soc. 128 (2006) 2, 384-385; Dep. Quim. Org., Fac. Quim., Univ. Santiago de Compostela, E-15782 Santiago de Compostela, Spain; Eng.) — Bartels