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3-Acetylcoumarin undergoes condensation with aryl aldehydes in chloroform in the presence of piperidine to yield coumarin derivatives containing 4-arylbut-3-en-2-one moiety
A 1336 (OTTO) 3-Acetylcoumarin, 96% - Cas no 3949-36-8 used for isolation impurities in preparative separation.