AlCl3 supported on nano silica as an efficient catalyst for the preparation of coumarin

Journal of Chemical Reactivity and Synthesis

مقاله 8، دوره 2، شماره 2، مرداد 2012، صفحه 58-61   

نوع مقاله: Research Article

نویسندگان

Leila Sarami¹؛ Elham Tahanpesar^{* 2}

¹Department of Chemistry, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran

²Department of Chemistry, Khouzestan Science and Research Branch, Islamic Azad University, Ahvaz, Iran

چکیده

The Pechmann condensation has been used as a simple and efficient method for the preparation of coumarin derivatives, which phenols and ethyl acetoacetate were reacted in the presence of AlCl₃ supported on nano silica as an efficient catalyst at 110 ^oC under solvent free condition to form products with good to excellent yield (55 -90%), which are identified by spectroscopic method ( FT-IR, NMR) and melting points and compared with reference samples.

کلیدواژه‌ها

Pechmann condensation؛ AlCl3/SiO2NPs؛ coumarin؛ phenols