Friedel–Crafts approach to the one-pot synthesis of methoxy-substituted thioxanthylium salts
Autor: | Mami Kishimoto, Kiyoshi Honda, Kenta Tanaka, Yujiro Hoshino, Yuta Tanaka |
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Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
thioxanthylium salt
Chemistry One-pot synthesis Organic Chemistry metal-free conditions Photochemistry Spectral line Full Research Paper Red shift lcsh:QD241-441 lcsh:Organic chemistry photoredox catalyst one-pot synthesis Molecule lcsh:Q Absorption (chemistry) lcsh:Science Friedel–Crafts reaction friedel–crafts reaction |
Zdroj: | Beilstein Journal of Organic Chemistry, Vol 15, Iss 1, Pp 2105-2112 (2019) Beilstein Journal of Organic Chemistry |
ISSN: | 1860-5397 |
Popis: | An efficient synthesis of methoxy-substituted thioxanthylium salts has been developed. The reaction of diaryl sulfides with benzoyl chlorides in the presence of TfOH smoothly proceeded to give the desired thioxanthylium salts in good yields. In their UV–vis spectra, the maximum absorption wavelengths of methoxy-functionalized thioxanthylium salts were observed at around 460 nm, which show a drastic red shift compared to the parent thioxanthylium salts. The present reaction provides a versatile access to functionalized thioxanthylium salts, and therefore it constitutes a promising tool for the synthesis of biologically and photochemically active molecules. |
Databáze: | OpenAIRE |
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