Z. Qian
2011
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Journal
Chemical Reagents
Abstract
3-Amino-4-methyl-6-methoxy-7-hydroxycoumarin was successfully synthesized via the Pechmann condensation of ethyl-acetaminoacetoacetate and 4-methoxyphen-1,3-diol catalyzed by para-toluenesulfonic acid(PTS) under solvent-free conditions.The product structures were confirmed by 1HNMR and MS.