Nucleophilic attack of intramolecular hydroxyl groups on electron-rich aromatics using hypervalent iodine(III) oxidation
作者:Kayoko Hata、Hiromi Hamamoto、Yukiko Shiozaki、Simon B. Cämmerer、Yasuyuki Kita
DOI:10.1016/j.tet.2007.02.118
日期:2007.5
The hypervalent iodine(III) reagent, phenyliodine bis(trifluoroacetate) (PIFA)-mediated oxidative nucleophilic substitution of electron-rich aromatics involving aromatic cation radical intermediates was utilized in the direct aromatic carbon–oxygen bond formation reaction, and a novel and simple synthetic method for chroman derivatives was developed. As an extension of this methodology, a facile access
高价碘试剂(IIIFA),苯碘酸双(三氟乙酸盐)(PIFA)介导的涉及芳香族阳离子自由基中间体的富电子芳族化合物的氧化亲核取代反应被用于直接的芳族碳-氧键形成反应中,以及一种新颖而简单的合成方法开发了苯并二氢吡喃衍生物的方法。作为该方法的扩展,还可以轻松获得螺二烯酮衍生物。