Modifying chemoselectivity during oxidation of nitrogen...

Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...

Reexamination Certificate

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Reexamination Certificate

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06878821

ABSTRACT:
The invention concerns a method for chemoselective oxidation of an organic compound comprising several potentially oxidizable groups whereof at least one is a nitrogen group. Said method is characterised in that it consists in using at least a protic solvent, which is a good donor of hydrogen bonds, enabling to limit N-oxidation.

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Ravikumar et al, “Role of Hexafluoro-2-propanol in Selective Oxidation of Sulfide to Sulfoxide: Efficient Preparation of Glycosyl Sulfoxides” European Journal of Organic Chemistry, pp. 2937-2940 (1998).*
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