期刊
POLYCYCLIC AROMATIC COMPOUNDS
卷 36, 期 5, 页码 758-772出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10406638.2015.1053502
关键词
4-hydroxyquinolin-2(1H)-one; chromenoquinoline; ionic liquids; TsOH
资金
- Major Natural Science Foundation of Jiangsu Province [14KJA150004]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
A three-component reaction of benzaldehyde, 5,5-dimethyl-3-(arylamino)cyclohex-2-enone and 4-hydroxyquinolin-2(1H)-one gave a series of 3-((4,4-dimethyl-6-oxo-2-(arylamino) cyclohex-1-en-1-yl)(aryl)methyl)-4-hydroxyquinolin-2(1H)-one derivatives in ionic liquids at 80 degrees C under catalyst-free conditions. In the presence of TsOH at 140 degrees C, the same reaction provided an efficient method for the synthesis of 7-aryl-10,10-dimethyl-10,11-dihydro-5H-chromeno[3,2-c] quinoline-6,8(7H,9H)-dione derivatives in high yields while aromatic amine losing unexpectedly.
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