Fatemeh Noori Sadeh - Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, P.O. Box ۹۸۱۳۵-۶۷۴, Zahedan, Iran
Mojtaba Lashkari - Faculty of Sciences, Velayat University, Iranshahr, Iran
Nourallah Hazeri - Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, Zahedan ۹۸۱۳۵-۶۷۴, Iran
Malek Taher Maghsoodlou - Department of Chemistry, Faculty of Sciences, University of Sistan and Baluchestan, P.O. Box ۹۸۱۳۵-۶۷۴, Zahedan, Iran

An environmentally friendly, one-pot, three-component synthesis of ۸,۱۰-dimethyl-۱۲-aryl-۱۲H-naphtho[۱′,۲′:۵,۶]pyrano[۲,۳-d]pyrimidine-۹,۱۱-diones was achieved via coupling aromatic of aldehydes, β-naphthol and ۶-amino-۱,۳-dimethyl uracil in the presence of formic acid as a catalyst under solvent-free conditions at ۹۰ °C. This method has several advantages, such as efficiency, good yield, short reaction time, cleaner reaction profiles, ease of product isolation, operational simplicity and inexpensive, effective and catalyst.

Naphtho[۱′, ۲′:۵, ۶]pyrano[۲, ۳-d]pyrimidine, Aldehyde, β-Naphthol, ۶-Amino-۱, ۳-dimethyl uracil, Formic acid