Photochemical studies on aromatic γ,δ-epoxy ketones: efficient synthesis of benzocyclobutanones and indanones
作者:Yutian Shao、Chao Yang、Weijun Gui、Yang Liu、Wujiong Xia
DOI:10.1039/c2cc17960a
日期:——
Irradiation of terminal aromatic gamma,delta-epoxy ketones with a 450 W UV lamp led to Norrish type II cyclization/semi-pinacol rearrangement cascade reaction which formed the benzocyclobutanones containing a full-carbon quaternary center, whereas irradiation of substituted aromatic gamma,delta-epoxy ketones led to the indanones through a photochemical epoxy rearrangement and 1,5-biradicals cyclization
用450 W紫外线灯照射末端芳香族γ-δ-环氧酮会导致Norrish II型环化/半频哪醇重排级联反应,从而形成含有全碳四元中心的苯并环丁酮,而辐照取代的芳香族γ-δ-酮环氧酮通过光化学环氧重排和1,5-双自由基环化串联反应生成茚满酮。