Novel domino reactions for the efficient synthesis of 5,6-dihydro-1,4,2-oxathiazines
作者:Sundaravel Vivek Kumar、Subbu Perumal
DOI:10.1016/j.tetlet.2014.05.062
日期:2014.7
A facile efficientsynthesis of novel 3-aryl-5,6-dihydro-1,4,2-oxathiazin-6-ols from the reaction of (E)-N-hydroxyarylimidoyl chlorides and 1,4-dithiane-2,5-diol in the presence of triethylamine is described. This transformation presumably proceeds via in situ generation of 2-mercaptoacetaldehyde and nitrile oxide and their concomitant [3+3] annulation.