Synthesis 2005(10): 1675-1681  
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

Vittoria Lupi*a, Domenico Albanesea, Dario Landinia, Davide Scalettia, Michele Penso*b
a Dipartimento di Chimica Organica e Industriale, Università degli Studi di Milano, via Venezian 21, 20133 Milano, Italy
Fax: +39(02)50314159; e-Mail: vittoria.lupi@unimi.it;
b CNR- Istituto di Scienze e Tecnologie Molecolari (ISTM), via Golgi 19, 20133 Milano, Italy
e-Mail: michele.penso@istm.cnr.it;
Further Information

Publication History

Received 7 December 2004
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.