A variety of functionalized sulfonium ylides were prepared in good yields through MnSO4-promoted S–O bond cleavage from activated alkynes and sulfoxides. Experimental results showed that the MnSO4 catalyst played important roles in accelerating the reaction and promoting the [1,3]-rearrangement of the S–O bond. Furthermore, the product was easily obtained on a gram scale by simple recrystallization
通过 MnSO 4促进活化的
炔烃和亚砜的 S-O 键断裂,以良好的收率制备了多种功能化的锍叶立德。实验结果表明,MnSO 4催化剂在加速反应和促进S-O键的[1,3]-重排方面发挥了重要作用。此外,无需柱层析,通过简单的重结晶即可轻松获得克级产品。得到的产物可以转化为新的锍叶立德,并与
炔烃进行环加成反应,得到三取代的
呋喃支架。