Regioselective (Diacetoxyiodo)benzene-Promoted Halocyclization of Unfunctionalized Olefins
作者:Gong-Qing Liu、Yue-Ming Li
DOI:10.1021/jo501739j
日期:2014.11.7
A metal-free method for intramolecular halocyclization of unfunctionalized olefins was detailed. (Diacetoxyiodo)benzene (PIDA) was very effective for haloamidation, haloetherification, and halolactonization of unfunctionalized olefins. In the presence of 1.1 equiv of PIDA and suitable halogen sources, a variety of unfunctionalized olefins could be converted to the corresponding 1,2-bifunctional cyclic
详细介绍了一种用于非官能化烯烃分子内卤代化的无金属方法。(二乙酰氧基碘)苯(PIDA)对于未官能化烯烃的卤代酰胺化,卤代醚化和卤代内酯化非常有效。在存在1.1当量的PIDA和合适的卤素源的情况下,可以将各种未官能化的烯烃以良好或优异的分离产率转化为相应的1,2-双官能环状骨架,并且可以高收率获得生物学上有意义的化合物的关键中间体通过亲核取代由此获得的卤代环化产物在温和条件下获得收率。