β-Keto 1,3-dithianes can be generated by the double conjugate addition of dithiols to propargylic ketones, esters and aldehydes in excellent yields. As masked 1,3-dicarbonyl systems these substrates can be converted to a range of functionalised oxygen-containing heterocycles that can be used in natural product synthesis.
β-酮
1,3-二噻烷可以通过二
硫醇与炔
丙酮、酯和醛的双共轭加成生成,产率极好。作为掩蔽的 1,3-二羰基系统,这些底物可以转化为一系列可用于
天然产物合成的官能化含氧杂环。