BF<sub>3</sub>
⋅OEt<sub>2</sub>
-Promoted Annulation for Substituted 2-Arylpyridines as Potent UV Filters and Antibacterial Agents
作者:Sabera Sultana、Shizuka Mei Bautista Maezono、Muhammad Saeed Akhtar、Jae-Jin Shim、Young-Jung Wee、Sung Hong Kim、Yong Rok Lee
DOI:10.1002/adsc.201701137
日期:2018.2.15
efficient BF3⋅OEt2 mediated methodology for the construction of diverse 2‐phenylpyridines bearing benzophenone moieties from readily available 3‐formylchromones and phenylacetylenes in wet acetonitrile was developed. The nitrogen source for the pyridine construction was derived from acetonitrile. This one‐potprotocol proceeds via [3+2+1] annulation through cascade nucleophilic addition, hydrolysis, Michael‐type