The High-Intrinsic Diels−Alder Reactivity of (−)-Galiellalactone; Generating Four Quaternary Carbon Centers under Mild Conditions
作者:Franz von Nussbaum、Roman Hanke、Thomas Fahrig、Jordi Benet-Buchholz
DOI:10.1002/ejoc.200400137
日期:2004.7
out to be precursors of bis(dehydratogaliellalactone), a novel oligocyclic Diels−Alder product of complicated architecture. During this extraordinary Diels−Alder-type conversion fourquaternarycarboncenters were generated at room temperature undermildconditions in a regio- and stereoselective fashion. The novel Diels−Alder transformation was used for a stereoselective hetero-derivatization of the