An efficient intermolecular [Pd]-catalyzed C–C and intramolecular [Cu]-catalyzed C–O bonds formation: synthesis of functionalized flavans and benzoxepine
作者:B. Suchand、J. Krishna、B. Venkat Ramulu、D. Dibyendu、A. Gopi Krishna Reddy、L. Mahendar、G. Satyanarayana
DOI:10.1016/j.tetlet.2012.05.050
日期:2012.7
An efficient three-step strategy for the synthesis of functionalized flavans, starting from readily available 2-bromoiodobenzenes and aryl vinyl alcohols, is presented and successfully extended to benzoxepine. An intermolecular [Pd]-catalyzed C-C and an intramolecular [Cu]-catalyzed C-O bond formations have been employed as key transformations of the strategy. (C) 2012 Elsevier Ltd. All rights reserved.