- Oxidation of N-heterocycles by H2O2 catalyzed by a Mn-porphyrin: An easy access to N-oxides under mild conditions
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A variety of N-heteroaromatic compounds were converted into their corresponding N-oxides with good yields and with high chemoselectivity in tile presence of hydrogen peroxide as oxygen donor and a catalytic amount of Mn-porphyrin. The scope and limitation of this method are discussed.
- Thellend,Battioni,Sanderson,Mansuy
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p. 1387 - 1388
(2007/10/03)
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- FURTHER FUNCTIONAL GROUP OXIDATIONS USING SODIUM PERBORATE
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Sodium perborate in acetic acid is an effective reagent for the oxidation of aromatic aldehydes to carboxylic acids, iodoarenes to (diacetoxyiodo)arenes, azines to N-oxides, and various types of sulfur heterocycles to S,S-dioxides.Nitriles are unaffected by the reagent in acetic acid, but undergo smooth hydration to amides when aqueous methanol is employed as solvent.
- McKillop, Alexander,Kemp, Duncan
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p. 3299 - 3306
(2007/10/02)
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