title: Silica tungstic acid as an efficient and reusable catalyst for the one-pot synthesis of 2-amino-4H-chromene derivatives.
abstract: Silica tungstic acid (STA) has been found to be an efficient and reusable solid acid catalyst for the synthesis of 2-amino-4H-chromenes via the three-component reaction of aromatic aldehydes, malononitrile, and β-naphthol. STA as a novel solid acid was characterized by X-ray fluorescence, X-ray diffraction, and Fourier transform infrared spectroscopy.
authors.forename: Mahnaz
authors.initials: M
authors.lastname: Farahi
authors.forename: Bahador
authors.initials: B
authors.lastname: Karami
authors.forename: Samambar
authors.initials: S
authors.lastname: Alipour
authors.forename: Leila Taghavi
authors.initials: LT
authors.lastname: Moghadam