Syntheses of Diarylethenes by Perylene-catalyzed Photodesulfonylation from Ethenyl Sulfones

Diarylethenes were obtained from the corresponding ethenyl sulfones by photocatalyzed desulfonylation using UV or blue LEDs. When perylene and i-Pr2NEt were used as a photocatalyst and a sacrificing reagent, respectively, this desulfonylation proceeded smoothly to afford the desired ethenes with the...

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Bibliographic Details
Published in:Chemistry letters 2020-04, Vol.49 (4), p.409-412
Main Authors: Watanabe, Hikaru, Takemoto, Mai, Adachi, Kazumasa, Okuda, Yasuhiro, Dakegata, Aki, Fukuyama, Takahide, Ryu, Ilhyong, Wakamatsu, Kan, Orita, Akihiro
Format: Article
Language:English
Subjects:
Functional groups
Reagents
Sulfones
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Summary:Diarylethenes were obtained from the corresponding ethenyl sulfones by photocatalyzed desulfonylation using UV or blue LEDs. When perylene and i-Pr2NEt were used as a photocatalyst and a sacrificing reagent, respectively, this desulfonylation proceeded smoothly to afford the desired ethenes with the functional groups such as chloro, alkoxy and heteroaromatic rings remaining untouched. The use of a flow photoreactor enabled this desulfonylation to proceed more rapidly to finish in an hour of residence time.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.200046