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 efficient synthesis 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.
从(E)-N-羟基芳基酰氯与1,4-二硫杂环丁-2,5-的反应轻松合成新型3-芳基-5,6-二氢-1,4,2-恶噻嗪-6-醇描述了在三乙胺存在下的二醇。据推测,这种转化是通过原位产生2-巯基乙醛和一氧化氮及其伴随的[3 + 3]环化反应进行的。