Thio-Sugars.IV.Synthesis of Carbohydrate 1, 3-Glycol (Six-Membered) Thionocarbonates and Their Attempted O-S Rearrangement
Access this Article
Search this Article
Four six-membered cyclic thionocarbonates (two sec-sec and two prim-sec) were prepared and their radical-promoted O-S rearrangement reaction was examined. The results revealed that the reaction in six-membered rings is difficult compared with the simple rearrangement in five-membered rings. In the course of syntheses of the substrates, interesting acyl migration during the stannylation process occurred.