Diels–Alder Reaction of 1,3-Diarylbenzo[c]furans with Thiophene S,S-Dioxide/Indenone Derivatives: A Facile Preparation of Substituted Dibenzothiophene S,S-Dioxides and Fluorenones

One
pot syntheses of substituted dibenzothiophene S,S-dioxides and fluorenones were successfully achieved
by Diels–Alder reaction of benzo­[c]­furans
with thiophene S,S-dioxides and
indenones, respectively. Photophysical properties of representative
seven- and nine-membered dibenzothiophene S,S-dioxide acenes were also reported.

通过苯并[c]呋喃与噻吩S,S-二氧化物以及 indenones 分别发生的狄尔斯-阿尔德反应，成功合成了取代的二苯并噻吩S,S-二氧化物和氟化酮。同时，还报道了代表性七元和九元二苯并噻吩S,S-二氧化物芳烃的光物理性质。