J IRAN CHEM SOC
Acknowledgments The authors gratefully acknowledge partial
support of this work by the Research Affairs Office of Bu-Ali Sina
University and Center of Excellence in Development of Chemical
Method (CEDCM), Hamedan, I.R. Iran.
(Table 2, compounds 1b, 1e, 1i, and 1l). Various enolizable
ketones including acetophenones bearing electron-releas-
ing substituents, electron-withdrawing substituents, and
halogens on the aromatic ring were also condensed with
aldehydes, acetonitrile and acetyl chloride in the presence
of nano-sphere silica sulfuric acid to afford the corre-
sponding b-acetamido ketones in high yields within rela-
tively short reaction times.
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