Sajedeh Seyednejhad; Mohammad A. Khalilzadeh; Hasan Sadeghifar; Daryoush Zareyee
Abstract
A new Schiff base catalyst (Pd(II) chemically mounted on the cellulose nanocrystals surface (CNC-APTES-IS-Pd) was developed for Ulmann and Suzuki cross-coupling reactions. The catalyst was applied for Ulmann reaction using s series of aryl halide and phenol derivatives in DMSO and preparation of biaryls ...
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A new Schiff base catalyst (Pd(II) chemically mounted on the cellulose nanocrystals surface (CNC-APTES-IS-Pd) was developed for Ulmann and Suzuki cross-coupling reactions. The catalyst was applied for Ulmann reaction using s series of aryl halide and phenol derivatives in DMSO and preparation of biaryls via Suzuki C-C reactions between aryl halides and phenyl boronic acid. The Catalyst was characterized by FT-IR, XRD, SEM, ICP-AES and TGA techniques. The catalyst demonstrated high reaction efficiency with more than 90% reaction yield. The catalyst indicated good performance after several times recovery and reuse.

Javad Ghanaat; Mohammad A. Khalilzadeh; Daryoush Zareyee
Abstract
In this research, a green procedure and conventional methodology have been developed for the synthesis of a series of 3-mercapto-1,2,4-triazole derivatives (4a-f) in the presence of KF/Clinoptilolite nanoparticles (KF/CP NPs) as catalyst in water at 80 oC. Also, diphenyl-picrylhydrazine (DPPH) ...
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In this research, a green procedure and conventional methodology have been developed for the synthesis of a series of 3-mercapto-1,2,4-triazole derivatives (4a-f) in the presence of KF/Clinoptilolite nanoparticles (KF/CP NPs) as catalyst in water at 80 oC. Also, diphenyl-picrylhydrazine (DPPH) radical trapping and ferric reduction activity potential (FRAP) assays are used for evaluation of antioxidant activity of some synthesized compounds (4a-4d). Besides, the antimicrobial activity of some synthesized compounds was studied employing the disk diffusion test on Gram-positive bacteria and Gram-negative bacteria. This procedure has some advantages such as short time of reaction, simple and green procedure, using low-cost catalyst, excellent yield of product and employing different substrate.
