Direct use of hydroxyl ions as an oxygen source for oxidation of isoquinolinium salts to isoquinolinones in water solution. (30th January 2023)

• Record Type: Journal Article
• Authors: Xu, Daqian; Wang, Lixian; Yao, Fangzheng; Shi, Mingrui; Xie, Min; Li, Tao; Nie, Rong; Gou, Hao; Zhao, Guohu; Sun, Wei
• Is Part Of: New journal of chemistry. Volume 47:Number 8(2023)
• Page Start: 3921
• Page End: 3927
• Publication Date: 2023-01-30
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/d2nj06140f
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : Herein we reported the direct use of hydroxyl ions as an oxygen source for oxidation of isoquinolinium salts to isoquinolinones in water solution. Abstract : Environmentally friendly synthesis of isoquinolinones and quinolinones has been achieved in water solution by oxidation of isoquinolinium and quinolinium salts using oxygen under mild conditions. This reaction is compatible with numerous isoquinolinium and quinolinium salts. The results of the isotope labeling experiment (using 18 O2 and H2 18 O) suggest that OH − is the oxygen source of the forming products, and oxygen serves as the oxidant. Moreover, this method can be used to synthesize bioactive molecules such as a topoisomerase I inhibitor.