Angewandte
Chemie
gel column was analyzed by HPLC for conversion of 4-picoline to 4-
Rao, B. Sain, P. S. N. Murthy, G. C. Joshi, T. S. R. Prasada Rao,
picoline N-oxide.
Stud. Surf. Sci. Catal. 1998, 113, 921.
[19] As suggested by one of the referees, we carried out experiments
on the oxidation of a secondary amine (dicyclohexylamine) and
a primary amine (4-methoxyaniline) with complex 1 as the
catalyst under similar conditions and observed the formation of
dicyclohexyl nitrone and 4-nitroanisole, respectively. However,
olefins (norbornylene and styrene) did not react under similar
conditions.
Received: October 1, 2002 [Z50272]
Keywords: cobalt · homogeneous catalysis · N oxides ·
.
oxidation · Schiff bases
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Angew. Chem. Int. Ed. 2003, 42, No. 11
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