The combination of P4S10 and hexamethyldisiloxane efficiently converts esters, lactones, amides, lactams, and ketones to their corresponding thiono derivatives. In the presence of elemental sulfur, 3-oxoesters are converted to dithiolethiones by this reagent. Yields are comparable to or superior to those obtained with Lawesson's reagent. The method has the advantage that reagent-derived byproducts
P4S10和六甲基二
硅氧烷的组合可将酯,内酯,酰胺,内酰胺和酮有效地转化为其相应的
硫代衍
生物。在元素
硫的存在下,该试剂将3-氧代酯转化为二
硫代
硫酮。产率与使用
劳森试剂获得的产率相当或更高。该方法的优点在于,可以通过简单的
水解后处理或通过
硅胶过滤而不是通过
劳氏试剂所要求的色谱法来除去试剂衍生的副产物。