Abstract:
A Pd nanoparticle decorated nanocrystalline ZSM-5 catalyst was prepared for one-pot tandem reactions. The
catalyst was characterized by the complementary combination of X-ray diffraction, N2-adsorption, electron
microscopy, and NH3-temperature programmed desorption techniques. The catalyst was investigated in
the one-pot tandem conversion of benzyl alcohol to 1,3-diphenyl-3-(phenylamino)propan-1-one, (E)-
chalcone, and 2,3-dihydro-1,5-benzothiazepine. 1,3-Diphenyl-3-(phenylamino)propan-1-one and (E)-
chalcone were prepared by two step tandem reactions from benzyl alcohol, whereas 2,3-dihydro-1,5-
benzothiazepine was prepared by a three step tandem reaction from benzyl alcohol. A recycling study
shows that no significant decrease in the catalytic activity was observed even after three recycles. To the
best of our knowledge, this is the first report which deals with such a simple route to prepare 2,3-dihydro-
1,5-benzothiazepines in a one-pot tandem methodology from benzyl alcohol.
