9-phenyl-10-methylacridinium: a highly efficient and reusable organocatalyst for mild aromatization of 1,4-dihydropyridines by molecular oxygen.
The mild, efficient, and general aerobic aromatization of Hantzsch 1,4-dihydropyridines was realized at room temperature with 5 mol % of 9-phenyl-10-methylacridinium perchlorate as the photocatalyst, which could be easily recovered and reused.
Fang
Xinqiang
X
Joint Laboratory of Green Synthetic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China.
Liu
You-Cheng
YC
Li
Chaozhong
C
D000166:Acridines / Q000737:chemistry*; D002384:Catalysis; D004095:Dihydropyridines / Q000737:chemistry*; D015394:Molecular Structure; D010100:Oxygen / Q000737:chemistry*; D010472:Perchlorates / Q000737:chemistry*; D013237:Stereoisomerism
C521006:9-phenyl-10-methylacridinium perchlorate; D000166:Acridines; D004095:Dihydropyridines; D010472:Perchlorates; C038806:1,4-dihydropyridine; D010100:Oxygen