A mild, expedient, one-pot trifluoromethanesulfonic anhydride mediated synthesis of N-arylimidates
作者： Mehdi Ghandi , Saleh Salahi , Mohammad Hasani
DOI: 10.1016/J.TETLET.2010.11.019
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摘要: Abstract The direct transformation of various secondary amides into N-arylimidates via mild electrophilic amide activation with trifluoromethanesulfonic anhydride (Tf2O) in the presence 2-chloropyridine (2-ClPyr) is described. Low-temperature followed by C–O bond formation 2-naphthol provides desired short overall reaction times. In contrast, oxindole proceeds a C–C to give 1-(1H-indol-2-yl)naphthalene-2-ol.
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