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The results of the recovery of both aldehyde and ketone carbonyl functionalities from the oxime derivatives in aromatic carbonyl compounds using tetrapyridine silver(II) peroxydisulfate [Ag(py)4S2O8] as a stable, mild, and efficient oxidizing agent is reported. Yields in excess of 85% were achieved at room temperature in both acetonitrile and aqueous media, making the method versatile and suitable for a wide range of aromatic carbonyl oximes. [ABSTRACT FROM AUTHOR]

Zinc dichromate trihydrate (ZnCr 2 O 7 ·3H 2 O) is an efficient reagent for the immediate deprotection of aromatic and aliphatic silyl and pyranyl ethers into their corresponding carbonyl compounds in high yields at room temperature under solvent-free conditions. [ABSTRACT FROM AUTHOR]

Zinc dichromate trihydrate (ZnCr2O7 · 3H2O) is an efficient oxidizing agent for the immediate deprotection of 1,3-dithianes, 1,3-dithiolanes, and dibutyl dithioacetals to their corresponding carbonyl compounds in non-aqueous and aprotic conditions at room temperature. [ABSTRACT FROM AUTHOR]

Solid silica chloride/KMnO 4 system oxidizes effectively aromatic and aliphatic cyclic thioacetals (1,3-dithiolanes, 1,3-dithianes) and silyl and pyranyl ethers into their corresponding carbonyl compounds in dry CH 3 CN at room temperature in high yields. Over-oxidation of aldehydes to carboxylic acids has not been observed by this system. In the absence of silica chloride, KMnO 4 in dry CH 3 CN is an ineffective reagent for these oxidations. [ABSTRACT FROM AUTHOR]