Total synthesis of the pyranocoumaronochromone lupinalbin H
摘要:
The pyranocoumaronochromone lupinalbin H was synthesized in three major steps, which involved preparation of 2'-hydroxygenistein by the Suzuki-Miyaura reaction, followed by oxidative cyclodehydrogenation into lupinalbin A. The final step was the regiospecific introduction of the dimethylpyran moiety to ring A of lupinalbin A via an aldol-type condensation with 3-methyl-2-butenal and 6 pi-electrocyclization. (C) 2011 Elsevier Ltd. All rights reserved.
Total synthesis of the pyranocoumaronochromone lupinalbin H
作者:Mamoalosi A. Selepe、Siegfried E. Drewes、Fanie R. van Heerden
DOI:10.1016/j.tet.2011.09.042
日期:2011.11
The pyranocoumaronochromone lupinalbin H was synthesized in three major steps, which involved preparation of 2'-hydroxygenistein by the Suzuki-Miyaura reaction, followed by oxidative cyclodehydrogenation into lupinalbin A. The final step was the regiospecific introduction of the dimethylpyran moiety to ring A of lupinalbin A via an aldol-type condensation with 3-methyl-2-butenal and 6 pi-electrocyclization. (C) 2011 Elsevier Ltd. All rights reserved.