A green approach for highly regioselective syntheses of furo[3,2-h]quinolines in aqueous medium
作者:Swarbhanu Sarkar、Rammyani Pal、Nivedita Chatterjee、Samrat Dutta、Subhendu Naskar、Asish Kumar Sen
DOI:10.1016/j.tetlet.2013.05.038
日期:2013.7
An environmentally benign, high yielding, and operationally simple protocol has been developed for the regioselective synthesis of furo[3,2-h]quinolines in aqueous micellar medium involving Cu-free domino Sonogashira reaction followed by 5-endo-dig-cyclization of substituted 8-hydroxyquinolines and terminal allcyne by using Pd(C6H5CN)Cl-2 as catalyst and 2-pyridinecarboxaldehyde methylphenyl hydrazone as ligand under aerobic condition. (C) 2013 Elsevier Ltd. All rights reserved.