Hantzsch Ester as a Photosensitizer for the Visible-Light-Induced Debromination of Vicinal Dibromo Compounds

The debromination of vicinal dibromo compounds to generate alkenes usually requires harsh reaction conditions and the addition of catalysts. Just recently the visible‐light‐induced debromination of vicinal dibromo compounds emerged as a possible alternative to commonly used methods, but the substrat...

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Bibliographic Details
Published in:Chemistry : a European journal 2016-07, Vol.22 (28), p.9546-9550
Main Authors: Chen, Wenxin, Tao, Huachen, Huang, Wenhao, Wang, Guoqiang, Li, Shuhua, Cheng, Xu, Li, Guigen
Format: Article
Language:English
Subjects:
Alkenes
Catalysis
catalyst-free reactions
Catalysts
Chemistry
Compatibility
Conversion
debromination
Esters
Hantzsch ester
Photocatalysts
Substrates
visible light
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Summary:The debromination of vicinal dibromo compounds to generate alkenes usually requires harsh reaction conditions and the addition of catalysts. Just recently the visible‐light‐induced debromination of vicinal dibromo compounds emerged as a possible alternative to commonly used methods, but the substrate scope of this reaction is limited and a photocatalyst is necessary for the successful conversion of the starting compounds. A catalyst‐free visible‐light‐induced debromination of vicinal dibromo compounds with a base‐activated Hantzsch ester as photosensitizer is reported. The method has a wide substrate scope and a broad functional‐group compatibility. Turn all the lights on! The debromination of vicinal dibromo compounds to generate alkenes usually requires harsh reaction conditions and the addition of catalysts. A mild, catalyst‐free visible‐light‐induced debromination of vicinal dibromo compounds using a base‐activated Hantzsch ester as photosensitizer is presented. This method has a wide substrate scope and tolerates a broad range of functional groups.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201601819