Efficient one-pot synthesis of 1,3-diaryl-3H-benzo[f]chromenes using ferric hydrogensulfate
作者:Hossein Eshghi、Gholam Hossein Zohuri、Saman Damavandi、Mohammad Vakili
DOI:10.1016/j.cclet.2010.07.007
日期:2010.12
An efficient and easy method for one-pot three-component synthesis of 1,3-disubstituted-3H-benzo[f]chromenes by the condensation of naphtol, aromatic aldehyde derivatives and phenylacetylene in the presence of ferric hydrogensulfate [Fe(HSO4)(3)], has been described. The catalyst displayed high activity which afforded the corresponding 1,3-disubstituted-3H-benzo[f]chromenes in satisfying yields. Alkyl-substituted phenols were examined and the corresponding benzopyran derivatives were synthesized in moderate yields. Heterogeneous nature of the using catalyst made it reusable for further chemical reactions. (C) 2010 Hossein Eshghi. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.