作者:Yannick Vallée、Serge Masson、Jean-Louis Ripoll
DOI:10.1016/s0040-4020(01)90527-7
日期:1990.1
The retro-Diels-Alder reaction under flash vacuum thermolysis (FVT) conditions was applied to the synthesis of simple unstabilized thioketenes. Alternatively, these reactive thiocarbonyl compounds were obtained by FVT elimination of methyltrimethylsilyl sulfide from silylated ketene dithioacetals (and for thioketene itself from methyl trimethylsilyl dithioacetate). A synthesis of propadienethione associating
在快速真空热解(FVT)条件下的逆Diels-Alder反应应用于合成简单的不稳定的硫代乙烯酮。或者,这些反应性硫代羰基化合物可通过FVT从甲硅烷基化的烯酮二硫缩醛中除去甲基三甲基甲硅烷基硫化物而获得(对于硫代烯酮本身,则是从三甲基甲硅烷基二硫代乙酸甲酯中获得)。还报道了结合这两个热解过程的丙二烯硫酮的合成。通过低温红外光谱法鉴定热分解产物,并立即用气态二甲胺淬灭,得到相应的硫代酰胺。在丙二烯硫酮的情况下,观察到与原位形成的甲硫醇的进一步反应。