GO-Fe3O4-Ti(IV) as an efficient magnetic catalyst for the synthesis of bis(indolyl)methanes and benzo[a]xanthen-11-one derivatives.

Autor:	Amiri-Zirtol, Leila, Amrollahi, Mohammad Ali, Mirjalili, Bibi-Fatemeh
Předmět:	ACID catalysts HETEROGENEOUS catalysts CATALYTIC activity CATALYST synthesis GRAPHENE oxide
Zdroj:	Inorganic & Nano-Metal Chemistry; 2023, Vol. 53 Issue 11, p1211-1221, 11p
Abstrakt:	In this study, a new and efficient magnetic composite was synthesized based on graphene oxide (GO). Initially, GO was coated with magnetite, and then Ti(IV) was fixed on GO-Fe3O4via a covalent graft. The magnetic composite was characterized by FT-IR, EDS, XRD, FE-SEM, TEM, VSM and TGA techniques. It was designed as a compound with strong and recoverable catalytic properties. The prepared GO-Fe3O4-Ti(IV) emerged to be of high catalytic activity for the synthesis of bis(indolyl)methane and benzo[a]xanthen-11-one derivatives under mild conditions. The stability and reusability of the catalyst were investigated too. All of the data proved that GO-Fe3O4-Ti(IV) could be recycled five times without a marked loss of activity. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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