Chemical and Pharmaceutical Bulletin p. 1656 - 1657 (1998)
Update date:2022-08-12
Topics:
Nakagawa, Hiroshi
Higuchi, Tsunehiko
Kikuchi, Kazuya
Urano, Yasuteru
Nagano, Tetsuo
A new convenient method of deoxygenation of heteroaromatic N-oxides is described. Ruthenium porphyrin was used as a catalyst and this method expressed high yields for o-substituted pyridine N-oxides, quinoline N-oxide derivatives, acridine N-oxide, etc. under mild conditions. Moreover, nitro-, benzyloxy-, and ketone carbonyl groups, which can be affected by the usual deoxygenation methods such as catalytic hydrogenation or borane reduction, were retained.
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