Intramolecular Fluorocyclizations of Unsaturated Carboxylic Acids with a Stable Hypervalent Fluoroiodane Reagent
作者:Gemma C. Geary、Eric G. Hope、Alison M. Stuart
DOI:10.1002/anie.201507790
日期:2015.12
A new class of fluorinated lactones was prepared by the intramolecular fluorocyclizations of unsaturated carboxylic acids by using the stable fluoroiodane reagent in combination with AgBF4. This unique reaction incorporates a cyclization, an aryl migration, and a fluorination all in one step. The fluoroiodane reagent, prepared easily from fluoride, can also be used without a metal catalyst to give
稳定的氟碘试剂与AgBF 4结合,通过对不饱和羧酸进行分子内氟环化制备了一类新型的氟化内酯。这一独特的反应可一步完成环化,芳基迁移和氟化反应。氟碘试剂很容易从氟化物中制备,也可以在没有金属催化剂的情况下使用,仅在1小时内即可获得中等收率,因此证明它是开发用于PET成像的新型18 F标记放射性示踪剂的合适试剂。