中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
7-羟基-3-苯基-2H-苯并吡喃-2-酮 | 7-Hydroxy-3-phenyl-chromen-2-one | 6468-96-8 | C15H10O3 | 238.243 |
—— | acetic acid 2-oxo-3-phenyl-2H-chromen-7-yl ester | 6296-55-5 | C17H12O4 | 280.28 |
7-甲氧基香豆素 | 7-methoxycoumarin | 531-59-9 | C10H8O3 | 176.172 |
7-羟基香豆素 | 7-hydroxy-2H-chromen-2-one | 93-35-6 | C9H6O3 | 162.145 |
A highly efficient synthesis of 3-arylcoumarins by Pd-catalysed carbonylative cyclisation of salicylaldehydes with benzyl chlorides using
An efficient protocol for oxidative C-3 arylation of coumarins with arylhydrazine has been developed using potassium permanganate as an oxidant. The arylated coumarins with different electronic properties were obtained in moderate to good yields. The developed protocol for direct C-3 arylation of coumarins could be extended to quinolinones.