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 Claisen rearrangement, and electrocyclization. The one‐pot procedure enables the straightforward synthesis of these structurally challenging alkaloids in only a
为什么每次只迈出一步?通过涉及Sonogashira偶联,克莱森重排和电环化。一锅法操作仅需几个步骤即可直接合成这些结构上具有挑战性的生物碱。