Synthesis of New Substituted Chromen[4,3-c]pyrazol-4-ones and Their Antioxidant Activities
A series of new coumarin derivatives 4 containing a 4-arylbut-3-en-2-one moiety were synthesized by condensation of 3-acetylcoumarin 1 with aryl aldehydes 2 in chloroform in the presence of piperidine. The interactions of 3-formyl-4-chlorocoumarin (3) with nitrogen-containg nucleophiles leading to t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2011-12-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/16/12/10292/ |