270 J. Chin. Chem. Soc., Vol. 50, No. 2, 2003
Zeynizadeh and Zahmatkesh
new stable ligand-metal borohydride which easily and effi-
ciently reduces aliphatic, aromatic and heteroaryl nitro com-
pounds to their corresponding amines. Excellent chemo-
selectivity was observed for the reduction of aliphatic nitro
compounds in the presence of the aromatic compounds. Easy
preparation of the reagent, a new potentiality of zinc borohy-
dride for the reduction of nitro compounds, mild reaction
condition, high yield of the products and easy work-up of the
reaction mixture, make (Py)Zn(BH4)2 a synthetically useful
reagent to the present methodologies for the reduction of a
variety of nitro compounds.
ACKNOWLEDGEMENT
The authors are grateful for the partial support of this
work by Urmia University Research Council.
Received June 4, 2002.
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EXPERIMENTAL SECTION
General
All products were characterized by a comparison of
1
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Reduction of Nitrobenzene with [(Py)Zn(BH4)2]: A Typi-
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