unusual benzofuran synthesis from 2,6-disubstituted phenols and alkynyl sulfoxides is disclosed. Various highly substituted benzofurans were synthesized via the charge-accelerated [3,3]-sigmatropic rearrangement and subsequent substituent migration. Multiaryl-substituted benzofurans and fully substituted benzofurans were prepared on the basis of the unique reaction mechanism.
公开了一种由2,6-二取代
苯酚和炔基亚砜合成
苯并呋喃的不寻常方法。通过电荷加速的[3,3]-σ重排和随后的取代基迁移合成了各种高度取代的
苯并呋喃。基于独特的反应机理,制备了多芳基取代
苯并呋喃和全取代
苯并呋喃。