4-Alkoxycarbonyl- and Aminocarbonyl-Substituted Isoxazoles as Masked Acrylates and Acrylamides in the Asymmetric Synthesis of Δ<sup>2</sup>-Isoxazolines
作者:Connie K. Y. Lee、Anthony J. Herlt、Gregory W. Simpson、Anthony C. Willis、Christopher J. Easton
DOI:10.1021/jo0602569
日期:2006.4.1
treatment with sodium borohydride and sodium trifluoroacetoxyborohydride, respectively. They are also alkylated at C5 through sonication with secondary and tertiary alkyl iodides in the presence of zinc dust and copper(I) iodide. These reactions are analogous to those observed with acrylates and acrylamides. The behavior is characteristic of the 4-substituted isoxazoles but not the 5-substituted regioisomers