Total Synthesis of the Biscarbazole Alkaloids Murrafoline A-D by a Domino Sonogashira Coupling/Claisen Rearrangement/Electrocyclization Reaction
作者:V. Pavan Kumar、Konstanze K. Gruner、Olga Kataeva、Hans-Joachim Knölker
DOI:10.1002/anie.201305993
日期:2013.10.11
at a time? Aryl–pyran‐linked biscarbazole alkaloids of the murrafoline group (see crystal structure of murrafoline A; dark gray: C, red: O, blue: N) were accessed readily by a novel domino reaction sequence involving Sonogashira coupling, a Claisenrearrangement, and electrocyclization. The one‐pot procedure enables the straightforward synthesis of these structurally challenging alkaloids in only a