3,4-Dihydropyrano [C] chromene Synthesis Using Fe3O4@SiO2-SO3H Magnetic Nanocatalyst

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Zakarieie Masoumeh; Taherimehr Masoumeh

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Journal of Water and Environmental Nanotechnology Year:2024 | Volume:9 | Issue:3 Page(s): 327-339

Download Full-Text

View:

Download:

Cites:

Information Journal Paper

Title

3,4-Dihydropyrano [C] chromene Synthesis Using Fe3O4@SiO2-SO3H Magnetic Nanocatalyst

Author(s)

Zakarieie Masoumeh | Taherimehr Masoumeh | Issue Writer Certificate

Keywords

4-Hydroxycoumarin

Malononitrile

Aromatic aldehyde

nanocatalyst

Abstract

Synthesis of 4H-chromene and its derivatives has attracted great interest due to their biological and pharmacological activities. Here, a simple and practical method was employed for synthesizing 3,4-Dihydropyrano[c]chromene derivatives, which have found medicinal applications. This method involves reacting 4-Hydroxycoumarin and malonitrile with an Aromatic aldehyde in the presence of Fe3O4@SiO2-SO3H nanocatalyst and methanol as a green solvent. The prepared catalyst was characterized by FT-IR, XRD, BET, VSM, and SEM. The reaction was optimized for four variables of benzaldehyde derivatives, solvent type, temperature, and catalyst loading. The highest 3,4-Dihydropyrano [c]chromene yield of 98% was obtained with 1 mmol of 3-nitrobenzaldehyde and 0.05 g of Fe3O4@SiO2-SO3H at 80 °C in methanol solvent after 2h. Notably, the saturation magnetization of Fe3O4@SiO2-SO3H nanocomposites is sufficient for magnetic separation using an external magnet. This method yields excellent results with easy separation of catalyst. The recyclability test for five consecutive runs showed negligible loss in catalytic activity.

Multimedia

No record.

Cites

No record.

References