Abstract
An efficient and regioselective O-alkylation of amides with a variety of electrophiles in the presence of silver nanoparticles is reported as part of our recent research on building blocks for synthesis of natural products. The nano-silver catalyst initiates O-alkylation of the amides by heteroalkyl halides. Reaction of equimolar 3-acetyl-6-chloro-4-phenylquinolin-2(1H)-one and 2-chloro-3-(chloromethyl)quinolines in the presence of silver nanoparticles in DMSO solution under reflux condition leads to the formation of 1-{1-[2-chloroquinolin-3-yl)methoxy]-6-chloro-4-phenylquinolin-3-yl}ethanones.
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Acknowledgments
This study was supported by Department of Science and Technology Government of India (grant no. SR/FTP/CS-99/2006). We also acknowledge IISc, Bangalore, for providing the NMR facility.
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Gund, M., Mohana Roopan, S., Nawaz Khan, FR. et al. Regioselective O-alkylation: synthesis of 1-{2-[(2-chloroquinolin-3-yl)methoxy]-6-chloro-4-phenylquinolin-3-yl}ethanones. Res Chem Intermed 38, 1111–1118 (2012). https://doi.org/10.1007/s11164-011-0447-z
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DOI: https://doi.org/10.1007/s11164-011-0447-z