Strontium arsenate pyrochlore and its doped sample (Sr2As2EuxO7+δ) as recyclable heterogeneous catalysts in one-pot, three-component synthesis of 2-amino-4H-chromene derivatives under microwave irradiation.

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.

Kafi Ahmadi Leila; Khademinia Shahin; Poursattar Ahmad

Educational Videos and Scientific Workshops

Scientific Information Database

ISSN: 2588-4824

Journal Paper

Paper Information

Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2023 | Volume:42 | Issue:1 Page(s): 111-123

Download Full-Text

Persian Verion

View:

Download:

Cites:

Information Journal Paper

Title

Strontium arsenate pyrochlore and its doped sample (Sr2As2EuxO7+δ) as recyclable heterogeneous catalysts in one-pot, three-component synthesis of 2-amino-4H-chromene derivatives under microwave irradiation.

Author(s)

Kafi Ahmadi Leila | Khademinia Shahin | Poursattar Ahmad | Issue Writer Certificate

Keywords

Sr2As2O7Q4

Sr2As2EuxO7+δQ4

catalystQ4

Microwave irradiationQ4

2-amino-4H-Chromene derivativesQ4

Abstract

In this paper, a very effective method for the synthesis of 2-amino-4H-Chromene derivatives has been reported. These derivatives were obtained during a one-pot, three-component condensation reaction between aromatic aldehydes, malononitrile and β-naphthol in the presence of water as an environmentally friendly solvent and under Microwave irradiation using heterogeneous nanocatalysts Sr2As2O7 and Sr2As2EuxO7+δ. This is the first report of using of the mentioned catalysts in the synthesis of Chromen derivatives. These catalysts were synthesized using the solvothermal method at 180 oC for 24 h and were characterized by various techniques such as UV-Vis, PXRD, FTIR, FESEM, and EDX. To carry out the catalytic reaction, the reaction conditions were optimized and it was determined that when 15 mg of catalyst, water as solvent and Microwave irradiation time (6 minutes) were used, a higher efficiency was obtained. Investigations showed that the aromatic aldehydes containing electron-donating and electron-withdrawing groups can produce the corresponding products, but the reaction efficiency with aldehydes with electron-withdrawing groups is higher (97-99%). The synthesized catalysts can be easily recycled and reused 4 times without significant decrease in catalytic activity. After the fourth step, the reaction efficiency was 71% for Sr2As2O7 and 73% for the doped sample. The advantages of this method are the use of environmentally friendly solvent, short reaction time, easy separation and production of products with high efficiency.

Cites

No record.

References

No record.

Cite

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops

Download

Move to top

وبگردی