Immobilized Ni on TMEDA@βSiO2@αSiO2@Fe3O4: as a novel magnetic nanocatalyst for preparation of pyrido[2,3-d:6,5-d′]dipyrimidines

Yasir Qasim Almajidi, Mohd Ubaidullah, Bidhan Pandit, A. K. Kareem, Rosario Mireya Romero-Parra, Adizov Bobirjon, Wesam R. Kadhum, Amran M. AL-Erjan, Munther Abosaooda, Aisha Kamal Mahmoud

Resultado de la investigación: Artículo CientíficoArtículo originalrevisión exhaustiva


In the current body of research, a very quick and effectual procedure for the synthesis of pyrido[2,3-d:6,5-d′]dipyrimidines has been developed. This method is accomplished through the one-pot multi-component reaction of 2-thiobarbituric acid, NH4OAc and aldehydes utilizing Ni-TMEDA@βSiO2@αSiO2@Fe3O4 as a novel mesoporous nanomagnetic catalyst at room temperature. This protocol is one of the few reports of the preparation of these derivatives without the use of conventional heating as well as energies such as microwave and ultrasound radiation. The characterization of the prepared catalyst was well accomplished by different techniques such as FT-IR, ICP-OES, SEM, TEM, BET, XRD, VSM, TGA, EDX and Elemental mapping. This organometallic catalyst was reusable for seven times with negligible decrement in its catalytic performance. In addition, all of the products were produced with high TON and TOF values, which demonstrates that our catalyst has a very high level of activity in the preparation of pyrido[2,3-d:6,5-d′]dipyrimidines.

Idioma originalInglés estadounidense
Páginas (desde-hasta)11393-11405
PublicaciónRSC Advances
EstadoIndizado - 14 abr. 2023

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© 2023 The Royal Society of Chemistry.


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