title: TBAI-catalyzed oxidative coupling of aminopyridines with β-keto esters and 1,3-diones-synthesis of imidazo[1,2-a]pyridines.
abstract: TBAI could catalyze the direct oxidative C-N coupling of 2-aminopyridines with β-keto esters and 1,3-diones, which affords imidazo[1,2-a]pyridines as the products. The reaction was realized under metal-free conditions by using tert-butyl hydroperoxide (TBHP) as the oxidant.
authors: State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, PR China.
authors: Lijuan
authors: L
authors: Ma
authors: Xianpei
authors: X
authors: Wang
authors: Wei
authors: W
authors: Yu
authors: Bing
authors: B
authors: Han
mesh_terms: D000631:Aminopyridines / Q000737:chemistry*; D002384:Catalysis; D004952:Esters; D007093:Imidazoles / Q000138:chemical synthesis* / Q000737:chemistry*; D007659:Ketones / Q000737:chemistry*; D010084:Oxidation-Reduction; D000644:Quaternary Ammonium Compounds / Q000737:chemistry*
chemical_list: D000631:Aminopyridines; D004952:Esters; D007093:Imidazoles; D007659:Ketones; D000644:Quaternary Ammonium Compounds; C009405:tetrabutylammonium