Evaluating brominated thioxanthones as organo‐photocatalysts†. (13th July 2017)

• Record Type: Journal Article
• Authors: Iyer, Akila; Clay, Anthony; Jockusch, Steffen; Sivaguru, J.
• Other Names: Ihmels Heiko guestEditor.; Linker Torsten guestEditor.; Trofimov Aleksei guestEditor.
• Is Part Of: Journal of physical organic chemistry. Volume 30:Number 9(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-07-13
• Subjects: Chemistry, Physical organic -- Periodicals; 547.1
• DOI: 10.1002/poc.3738
• Languages: English
• ISSNs: 0894-3230

Abstract

Abstract: Bromination of the widely used triplet sensitizer thioxanthone extends the absorption spectrum into the visible range with only minor loss of lowest triplet state energy (3 kcal/mol for di‐bromination). Because of bromine substitution, a slight increase in triplet quantum yield was observed. The di‐brominated derivative was effective as organo‐photocatalyst in performing [2 + 2] cross‐photocycloaddition of acrylimide‐based compounds under visible light irradiation. Abstract : Bromination of the widely used triplet sensitizer thioxanthone extends the absorption spectrum into the visible range with only minor loss of lowest triplet state energy (3 kcal/mol for di‐bromination). The di‐brominated derivative was effective as organo‐photocatalyst in performing [2+2] cross photocycloaddition of acrylimide‐based compounds under visible light irradiation.