Palladium nanoparticles embedded on mesoporous TiO2 material (Pd@MTiO2) as an efficient heterogeneous catalyst for Suzuki-Coupling reactions in water medium

Paramita Mondal; Piyali Bhanja; Resmin Khatun; Asim Bhaumik; Debasis Das; Sk Manirul Islam

doi:10.1016/j.jcis.2017.08.046

Palladium nanoparticles embedded on mesoporous TiO₂ material (Pd@MTiO₂) as an efficient heterogeneous catalyst for Suzuki-Coupling reactions in water medium

J Colloid Interface Sci. 2017 Dec 15:508:378-386. doi: 10.1016/j.jcis.2017.08.046. Epub 2017 Aug 16.

Authors

Paramita Mondal¹, Piyali Bhanja², Resmin Khatun³, Asim Bhaumik⁴, Debasis Das⁵, Sk Manirul Islam⁶

Affiliations

¹ Department of Chemistry, University of Kalyani, Kalyani, Nadia 741235, W.B., India; Department of Chemistry, University of Burdwan, Burdwan 713104, W.B., India.
² Department of Material Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India.
³ Department of Chemistry, University of Kalyani, Kalyani, Nadia 741235, W.B., India.
⁴ Department of Material Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India. Electronic address: msab@iacs.res.in.
⁵ Department of Chemistry, University of Burdwan, Burdwan 713104, W.B., India. Electronic address: ddas100in@yahoo.com.
⁶ Department of Chemistry, University of Kalyani, Kalyani, Nadia 741235, W.B., India. Electronic address: manir65@rediffmail.com.

PMID: 28843927
DOI: 10.1016/j.jcis.2017.08.046

Abstract

An efficient and recyclable catalytic system composed of palladium nanoparticles embedded over mesoporous TiO₂ material (Pd@MTiO₂) has been synthesized and its catalytic activity has been explored in Suzuki-Miyaura cross-coupling reaction of aryl halides in water medium. This catalytic system is a very simple and highly active protocol for carrying out the Suzuki coupling of aryl bromide and aryl chloride with boronic acids, which proceed smoothly in excellent yields under mild reaction conditions. Powder X-ray diffraction (XRD), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR), and N₂ sorption studies are used to characterize the Pd@MTiO₂ material. Environmentally friendly reaction conditions, high product yield, tolerance of variety of functionalities in the reactants and reusability suggested future potential of Pd@MTiO₂ for the synthesis of a wide range of biaryl compounds.

Keywords: Biaryls; Mesoporous TiO(2); Palladium nanoparticles; Suzuki-Miyaura cross-coupling reactions; Water medium.