Hypervalent iodine(<scp>iii</scp>)-mediated oxidation of aldoximes to N-acetoxy or N-hydroxy amides
作者:Harisadhan Ghosh、Bhisma K. Patel
DOI:10.1039/b917096k
日期:——
hypervalent iodine(III) reagents (diacetoxyiodo)benzene (DIB) or Koser's reagent [hydroxy(tosyloxy)iodo]benzene (HTIB) gave, respectively, N-acetoxy or N-hydroxy amides in good yields rather than the expected nitrile oxide dimerised product oxadiazole-N-oxides reported to be formed with other oxidising and hypervalent iodinereagents. The acetate or the hydroxyl group of DIB or HTIB attacks on the aryl/alkylnitrile