A novel poly(ethyleneoxide)-based magnetic nanocomposite catalyst for highly efficient multicomponent synthesis of pyran derivatives. Issue 4 (2nd October 2018)

• Record Type: Journal Article
• Authors: Maleki, Ali; Azizi, Mojtaba; Emdadi, Zeynab
• Is Part Of: Green chemistry letters and reviews. Volume 11:Issue 4(2018)
• Page Start: 573
• Page End: 582
• Publication Date: 2018-10-02
• Subjects: Nanocatalyst -- multicomponent reaction -- Fe3O4/PEO/SO3H -- pyran -- green chemistry; Green chemistry -- Periodicals; 540
• DOI: 10.1080/17518253.2018.1547795
• Languages: English
• ISSNs: 1751-8253

Abstract

ABSTRACT: In the present work, a new magnetically recyclable nanocomposite catalyst was designed, prepared, and characterized by Fourier transform infrared (FT-IR) spectroscopy, field-emission scanning electron microscopy (FE-SEM) images, X-ray diffraction (XRD) pattern, energy-dispersive X-ray (EDX), vibrating sample magnetometer (VSM), and transmission electron microscopy (TEM) analyses. Then, the catalytic activity of the prepared Fe3 O4 /PEO/SO3 H nanocatalyst was examined on multicomponent synthesis of 2-amino-3-cyano-4H-pyranes. Short reaction time, room temperature, good-to-excellent yields, easy catalyst separation and catalyst reusability, environmentally benign and efficient conditions are some advantages of this green protocol. GRAPHICAL ABSTRACT: