A novel intramolecular oxidative coupling reaction has been established to prepare benzofuran derivatives via direct C(sp2)–H functionalization for the formation of C–O bonds. This transformation is mediated by I2/TBHP/NaN3 under metal-free conditions and a catalytic amount of NaN3 plays a crucial role in the reaction.
已建立一种新型分子内氧化偶联反应,用于通过直接C(sp²)–H官能化形成C–O键制备苯并呋喃衍生物。此转化在无金属条件下由I₂/TBHP/NaN₃介导,而催化量的NaN₃在反应中起着关键作用。