Green synthesis, characterization and catalytic activity of natural bentonite-supported copper nanoparticles for the solvent-free synthesis of 1-substituted 1H-1,2,3,4-tetrazoles and reduction of 4-nitrophenol

• Akbar Rostami-Vartooni,
• Mohammad Alizadeh and
• Mojtaba Bagherzadeh

Beilstein J. Nanotechnol. 2015, 6, 2300–2309, doi:10.3762/bjnano.6.236

• -substituted 1H-1,2,3,4-tetrazoles and reduction of 4-nitrophenol (4-NP) in water. It was found that the Cu NPs/bentonite is a highly active and recyclable catalyst for related reactions. Keywords: heterogeneous catalyst; modified bentonite; nanocomposite; 1-substituted 1H-1,2,3,4-tetrazoles; Introduction

• recent research on tetrazoles, 1-substituted 1H-1,2,3,4-tetrazoles was found to be a special category due to their biological activity [16]. The plant biosynthesis of nanoparticles immobilized on natural supports is a subject of new research as little has been published on this topic [17][18]. Therefore

• heterogeneous catalyst for the synthesis of 1-substituted 1H-1,2,3,4-tetrazoles and reduction of 4-nitrophenol (4-NP). It was found that Cu NPs/bentonite is a highly active and recyclable catalyst for related reactions. The obtained results will be presented and described here. Experimental Instruments and