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Various new substituted naphthopyrane compounds were synthesized through a one-pot condensation of substituted benzaldehydes with beta-naphthol and 1, 3-dione compounds in the presence of Cu(OTf)2 using ultrasonic irradiation and conventional heating. The structures of the obtained new compounds have been clarified by spectroscopic methods (FTIR, 1H NMR, 13C NMR, and GC-MS) after the purification processes.

Produktbeschreibung
Various new substituted naphthopyrane compounds were synthesized through a one-pot condensation of substituted benzaldehydes with beta-naphthol and 1, 3-dione compounds in the presence of Cu(OTf)2 using ultrasonic irradiation and conventional heating. The structures of the obtained new compounds have been clarified by spectroscopic methods (FTIR, 1H NMR, 13C NMR, and GC-MS) after the purification processes.
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Autorenporträt
Tamrat Yimenu ZELEKEBSc degree in Haramaya University, Dire Dawa, Ethiopia and MSc in Organic Chemistry from Yildiz Technical University, Istanbul, Turkey. Hossäen, SNNPR, Ethiopia E-mail: yimanutamrat@yahoo.com