Sulfamic-acid-catalyzed simple and efficient synthesis of 4-aryl-3-methyl-1-phenyl-1H-benzo[g]pyrazolo[3,4-b]quinoline-5,10-diones under solvent-free conditions |
| |
Authors: | Liqiang Wu Suying Ma Fulin Yan and Chunguang Yang |
| |
Institution: | (1) School of Pharmacy, Xinxiang Medical University, Xinxiang, 453003, Henan, People’s Republic of China |
| |
Abstract: | Abstract An efficient synthesis of 4-aryl-3-methyl-1-phenyl-1H-benzog]pyrazolo3,4-b]quinoline-5,10-diones from the three-component condensation reaction of 3-methyl-1-phenyl-1H-pyrazol-5-amine, aromatic aldehydes, and 2-hydroxy-1,4-naphthoquinone under solvent-free conditions in good to excellent
yields and short reaction times using sulfamic acid as heterogeneous acid catalyst has been investigated. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|