作者:Konrad Kepski、Craig R. Rice、Wesley J. Moran
DOI:10.1021/acs.orglett.9b02540
日期:2019.9.6
A convenient, highly regioselective synthesis of five-membered cyclic vinyl(aryl)iodonium salts directly from β-iodostyrenes is presented. An X-ray crystal structure confirms the identity of these heterocycles. These λ3-iodanes can be converted rapidly into functionalized arylacetylenes by treatment with mild base or undergo SNV reactions with nonbasic nucleophiles.
提出了一种直接从β-碘苯乙烯中方便地,高度区域选择性地合成五元环乙烯基(芳基)碘鎓盐的方法。X射线晶体结构证实了这些杂环的身份。通过用温和的碱处理,这些λ3-碘化物可以迅速转化为官能化的芳基乙炔,或与非碱性亲核试剂进行SNV反应。