A straightforward and efficient copper(I)/amino acid-catalyzed intramolecular Ullmann-type C-O coupling reaction has been developed. This protocol affords a facile methodology for the synthesis of a series of novel 2,4,5-substituted oxazoles from readily accessible N-acyl-2-bromo enamides under mild conditions.
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A concise approach to polysubstituted oxazoles from N-acyl-2-bromo enamides via a copper(I)/amino acid-catalyzed intramolecular C-O bond formation.
Org Biomol Chem
June 2014
College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan Province 450001, China.
A straightforward and efficient copper(I)/amino acid-catalyzed intramolecular Ullmann-type C-O coupling reaction has been developed. This protocol affords a facile methodology for the synthesis of a series of novel 2,4,5-substituted oxazoles from readily accessible N-acyl-2-bromo enamides under mild conditions.
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