Herein we report a mild and efficient method to synthesize chiral 3-aminosubstituted isothiazole sulfoxides taking advantage of (+)- and (-)-((8,8-dichlorocamphoryl)sulfonyl)oxaziridine under microwave irradiation. The determination of the absolute configuration of the chiral sulfoxide was achieved by theoretical calculation of the CD spectra. The reason for the observed stereoselectivity, was enlightened by means of analysis of our data using DFT calculations. (C) 2009 Elsevier Ltd. All rights reserved.
Facile palladium catalysed functionalisation of 1,2-isothiazoline-3-ones and the highly diastereoselective Diels-Alder reactions of 4-vinyl-1,2-isothiazoline-3-one-1-oxides
作者:Andrew S. Bell、Colin W.G. Fishwick、Jessica E. Reed
DOI:10.1016/s0040-4020(99)00716-4
日期:1999.10
convenient palladium catalysed method for the regioselective synthesis of a range of usefully functionalised, homochiral 4-substituted 1,2-isothiazoline-3-ones is reported. The totally diastereoselectiveDiels-Alder reactivity of semi-cyclic sulfoxide containing dienes, 4-vinyl-1,2-isothiazoline-3-one-1-oxides is discussed.