Palladium mediated intramolecular multiple C–X/C–H cross coupling and C–H activation: synthesis of carbazole alkaloids calothrixin B and murrayaquinone A
Palladium mediated intramolecular multiple C–X/C–H cross coupling and C–H activation: synthesis of carbazole alkaloids calothrixin B and murrayaquinone A
Synthesis of murrayaquinone A and analogues via ring-closing C–H arylation
作者:Robin B. Bedford、John G. Bowen、Amanda L. Weeks
DOI:10.1016/j.tet.2013.02.055
日期:2013.6
A compact synthesis of Murrayaquinone A is reported, based on sequential Buchwald-Hartwig amination/annulative C-H activation followed by oxidation of the intermediate carbazole. The methodology can be readily extended to other analogues with electron-rich quinone rings. (C) 2013 Elsevier Ltd. All rights reserved.
Palladium mediated intramolecular multiple C–X/C–H cross coupling and C–H activation: synthesis of carbazole alkaloids calothrixin B and murrayaquinone A
作者:Srinivasan A. Kaliyaperumal、Shyamapada Banerjee、Syam Kumar U. K.
DOI:10.1039/c4ob00493k
日期:——
Straightforward palladium mediated syntheses of calothrixin B and murrayaquinone A are described.