MeOTf-catalyzed formal [4 + 2] annulations of styrene oxides with alkynes leading to polysubstituted naphthalenes through sequential electrophilic cyclization/ring expansion
作者:Song Zou、Zeyu Zhang、Chao Chen、Chanjuan Xi
DOI:10.1016/j.cclet.2021.12.012
日期:2022.6
MeOTf-catalyzed formal [4 + 2] annulation of styrene oxides with alkynes to afford polysubstituted naphthalenes has been realized, which undergoes sequential electrophilic cyclization/ring expansion. A range of substrates were tolerated in the formation of naphthalene derivatives with high regioselectivity in satisfactory yields. The reaction could also be carried out on gram scale.
已经实现了 MeOTf 催化的氧化苯乙烯与炔烃的形式 [4 + 2] 环化以提供多取代的萘,其经历顺序的亲电环化/扩环。一系列底物在萘衍生物的形成过程中具有高区域选择性和令人满意的收率。该反应也可以以克级进行。