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Communication | Regular issue | Vol 53, No. 7, 2000, pp.1471-1474
Published online, 1st January, 1970
DOI: 10.3987/COM-00-8900
Suggestion of Unexpected Sulfur Dioxide Mechanism for Deoxygenations of Pyridine N -Oxides with Alkanesulfonyl Chlorides and Triethylamine

Yoshiki Morimoto,* Hajime Kurihara, Takamasa Shoji, and Takamasa Kinoshita

*Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan


The reaction mechanism for unusual deoxygenations of pyridine N-oxides with alkanesulfonyl chlorides and triethylamine was explored. Some experimental facts suggested that sulfur dioxide generated in the reaction system might be responsible for the deoxygenations without chlorinations of the pyridine nucleus.