Copper Ferrite Superparamagnetic Nanoparticle-Catalyzed Cross-coupling Reaction to Form Diindolylmethane (DIM): Effect of Experimental Parameters

*Oanh T.K. Nguyen  -  1 Department of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), Viet Nam
Ha Trong Pha  -  1 Department of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), Viet Nam
Huynh Dang Khoa  -  1 Department of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), Viet Nam
Duy Chinh Nguyen  -  3 NTT Hi-Tech Institute, Nguyen Tat Thanh University, Viet Nam
Nguyen Thi Hong Tam  -  3 NTT Hi-Tech Institute, Nguyen Tat Thanh University, Viet Nam
Received: 22 Jun 2020; Revised: 23 Jul 2020; Accepted: 31 Jul 2020; Published: 28 Dec 2020; Available online: 13 Aug 2020.
Open Access Copyright (c) 2020 Bulletin of Chemical Reaction Engineering & Catalysis
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Superparamagnetic copper ferrite (CuFe2O4) nanoparticles were utilized as a heterogenous catalyst for the cross-coupling reaction of indole to form 3,3’-diindolylmethane (DIM) as the desirable product. High reaction yield, at around 82%, was achieved under optimal conditions. The CuFe2O4 material could be easily separated from the reaction mixture by an external magnetic field and could be reutilized several times without a significant decrease in catalytic activity. We also showed that no sites of catalyst material leached into reaction solution was detected. To our best knowledge, the above cross-coupling reaction was not previously conducted under catalysis of superparamagnetic nanoparticles. Copyright © 2020 BCREC Group. All rights reserved

Keywords: CuFe2O4; superparamagnetic nanoparticles; heterogeneous catalyst; cross-coupling reaction; 3,3’-diindolylmethane (DIM)
Funding: Ho Chi Minh City University of Technology

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