Utilization of Sugars in Organic Synthesis. Part XXXIV. Thio-Sugars. IV. Synthesis of Carbohydrate 1,3-Glycol (Six-Membered) Thionocarbonates and Their Attempted O-S Rearrangement.
作者:Yoshisuke TSUDA、Shinsuke NOGUCHI、Hideki NIINO
DOI:10.1248/cpb.49.1210
日期:——
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