Synthesis of alkyl N-(4-nitrophenyl)-3/2-oxomorpholine-2/3-carboxylates by rhodium(II) acetate catalyzed O–H and N–H carbene insertion
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Add time:08/23/2019 Source:sciencedirect.com
The synthesis of methyl N-(4-nitrophenyl)-3-oxomorpholine-2-carboxylate and ethyl N-(4-nitrophenyl)-2-oxomorpholine-3-carboxylate, via rhodium(II) acetate catalyzed intermolecular O–H and intramolecular N–H carbene insertion, is described. The products represent new and versatile building blocks for the synthesis of bioactive compounds of pharmaceutical interest.
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