Seven-Membered Rings through Metal-Free Rearrangement Mediated by Hypervalent Iodine
作者:Siguara Silva、Adriana Torre、João de Carvalho、Ana Ruiz、Luiz Silva
DOI:10.3390/molecules20011475
日期:——
for the synthesis of carbocycles and of heterocycles bearing seven- and eight-membered rings is described. The strategy is based on ring expansion of 1-vinylcycloalkanols (or the corresponding silyl or methyl ether) mediated by the hypervalent iodine reagent HTIB (PhI(OH)OTs). Reaction conditions can be easily adjusted to give ring expansion products bearing different functional groups. A route to medium-ring
描述了一种用于合成碳环和带有七元环和八元环的杂环的通用且无金属的方法。该策略基于由高价碘试剂 HTIB (PhI(OH)OTs) 介导的 1-乙烯基环烷醇(或相应的甲硅烷基或甲基醚)的扩环。可以很容易地调整反应条件,得到带有不同官能团的扩环产品。还开发了获得中环内酯的途径。