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Synthesis 2005(10): 1675-1681
DOI: 10.1055/s-2005-865285
DOI: 10.1055/s-2005-865285
PAPER
© Georg Thieme Verlag Stuttgart · New York
Synthesis of α-Hydroxy-β-triflamido Carboxylic Esters through Ring-Opening of Alkoxycarbonyl Oxiranes
Further Information
Received
7 December 2004
Publication Date:
07 April 2005 (online)
Publication History
Publication Date:
07 April 2005 (online)

Abstract
The oxirane ring of 3-alkyl- and 3-arylglycidic esters has been opened with trifluoromethanesulfonamide (TfNH2) under solid-liquid heterogeneous conditions. The corresponding α-hydroxy-β-triflamido esters were produced in good yields, in a regio- and stereoselective fashion. Several reaction parameters, such as the nature of the base, the presence of a phase transfer catalyst and/or a solvent have been examined.
Key words
regioselectivity - stereoselectivity - ring-opening - epoxides - amino acids
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