作者:Melder, Julian J.、Witzel, Sina、Terres, Sophia、de Bary, Philippe、Krohne, Lukas、Rudolph, Matthias、Hashmi, K.A. Stephen
DOI:10.1021/acs.orglett.4c01626
日期:——
light-mediated cyclization reaction initiated by an atom transfer radical addition (ATRA) of haloalkanes onto alkenes was exploited for the synthesis of functionalized dihydrobenzofurans. Initial investigation indicated that the dimeric gold catalyst [Au2(μ-dppm)2Cl2] can effectively be used for intermolecular ATRA reactions. Further, the reactivity was applied in a cascade-like cyclization for the preparation
利用卤代烷烃在烯烃上的原子转移自由基加成 (ATRA) 引发的光介导环化反应来合成官能化二氢苯并呋喃。初步研究表明二聚金催化剂[Au 2 (μ-dppm) 2 Cl 2 ]可以有效地用于分子间ATRA反应。此外,该反应性应用于级联环化反应以制备二氢苯并呋喃衍生物。通过所提出的光化学方法,可以在温和条件下直接从邻烯丙基酚实现官能化,产率高达 96%。