Papers by Daryoush Zareyee
Journal of Heterocyclic Chemistry
In this research, the synthesis of novel derivatives of spiroisatins in high yields was investiga... more In this research, the synthesis of novel derivatives of spiroisatins in high yields was investigated. These new compounds were synthesized using a multicomponent reaction (MCR) of isatin, malononitrile, acetophenone derivatives, diethyl oxalate, primary amines, and Et3N in aqueous media. Under similar conditions, spiropyrroloisatins were prepared using MCRs of synthesized spiroistins. The antioxidant activity of newly synthesized spiroisatins is due to having an NH group which was evaluated by two procedures. Also, the antimicrobial activity of newly generated spiroisatins was evaluated by a disk distribution process utilizing two kinds of Gram‐negative bacteria and Gram‐positive bacteria and bacterial growth was stopped using these compounds. The advantages of this method are short reaction times, high yields of products, and the easy separation of catalyst and product using simple procedures.
Applied Organometallic Chemistry, 2019
Heteroatom Chemistry, 2017
Applied Surface Science, Dec 1, 2016
P1 and P4 are the most stable adsorption configurations for cytosine NBO analysis show n-type sem... more P1 and P4 are the most stable adsorption configurations for cytosine NBO analysis show n-type semiconductor property for both Al-and Ga-doped graphenes Important changes in the HOMO and LUMO of doped graphene upon adsorption of cytosine Increase in the conductivity of system when cytosine is adsorbed on doped graphenes.
Applied Organometallic Chemistry, 2018
Molecular Physics, Sep 16, 2016
ABSTRACT We study the interaction of two mono-halomethanes (CH3F and CH3Cl) on Al12N12 and Al12P1... more ABSTRACT We study the interaction of two mono-halomethanes (CH3F and CH3Cl) on Al12N12 and Al12P12 fullerene-like nano-clusters based on density functional theory (DFT). We search on fully optimised adsorbed systems by theoretical investigation considering binding energies, total density of states, natural bond orbital (NBO) charges, and molecular electrostatic potential. We found that the direction of electron transfer is from halomethane to nano-cluster for all systems, indicating p-type semiconductor property of the mentioned nano-clusters. The interaction energy of halomethanes on nano-clusters is evaluated with dispersion corrected (wB97XD) and non-corrected (B3LYP) methods in order to estimate the dispersion effects. The binding energies are found in order of Al12N12–CH3F > Al12N12–CH3Cl > Al12P12–CH3F > Al12P12–CH3Cl with the values of −102.7, −83.7, −64.2, and −48.9 kJ mol−1 based on wB97XD, respectively. We found significant changes in the location of HOMO as well as LUMO of nano-clusters upon adsorption of the above-mentioned molecules. As a result, we suggest the suitability of Al12N12 nano-cluster as a strong adsorbent for practical applications.
Inorganic and Nano-Metal Chemistry
ChemInform, Oct 18, 2012
www.cheminform.wiley-vch.de Alcohols Q 0230 A Highly Efficient Solvent-Free Asymmetric Direct Ald... more www.cheminform.wiley-vch.de Alcohols Q 0230 A Highly Efficient Solvent-Free Asymmetric Direct Aldol Reaction Organocatalyzed by Recoverable (S)-Binam-L-prolinamides. ESI-MS Evidence of the Enamine-Iminium Formation.-The reaction of a number of ketones with aldehydes proceeds efficiently and in most cases the anti-adduct is formed as main product with good to high regio-, diastereo-, and enantioselectivity. The coupling of two aldehydes is also possible yielding chiral 1,3-diols with moderate to high stereoselectivity after in situ reduction.-(GUILLENA*, G.;
Journal of Inorganic and Organometallic Polymers and Materials, Oct 18, 2020
In this work, the extract of the roots plant of Chelidonium majus (greater celandine) was used to... more In this work, the extract of the roots plant of Chelidonium majus (greater celandine) was used to synthesize a magnetically reusable Pd nanoparticles supported by Fe 3 O 4 @nanocellulose through a green synthesis method. The Pd NPs/Fe 3 O 4 @ nanocellulose catalyst as an impressive catalyst was prepared via reduction of Pd 2+ ions using Chelidonium majus extract as bioreductant agent. The synthesized Pd NPs/Fe 3 O 4 @nanocellulose was characterized using vibrating sample magnetometer, field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction analysis, energy-dispersive X-ray spectroscopy, fourier transform infrared spectroscopy and thermogravimetric analysis techniques. This heterogeneous catalyst represented excellent activity for full degradation of Cr(VI) in the presence of formic acid at 50 °C, and reduction of methylene blue, methyl orange, rhodamine B and congo red in the presence of NaBH 4 as a reducing agent at room temperature. The synthesized catalyst was also reused four times for the reduction reactions without significant activity loss.
Journal of Molecular Structure, Oct 1, 2020
Herein, we described a versatile one step mild hydrothermal approach for the synthesis of N-doped... more Herein, we described a versatile one step mild hydrothermal approach for the synthesis of N-doped carbon supported silver nanoparticles (NC-AgNPs) using unripe Prunus mume (P. mume) fruit extract as both carbon inception and reducing agent for silver ions, in which ammonia is utilized as a nitrogen source. The resulting NC-AgNPs has been employed for the catalytic reductive degradation of methylene blue (MB) and methyl orange (MO). The formation of NC-AgNPs and capping action of P. mume functional groups are studied using Fourier transform infrared (FT-IR), and ultraviolet-visible (UV-Vis) spectroscopic techniques. The crystallinity, surface morphology, and surface functionalities of NC-AgNPs are analyzed by X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM) and X-ray photoelectron spectroscopy (XPS), respectively. The formation of NC-AgNPs is confirmed from the maximum absorbance at 442 nm and the appearance of yellow color using UV-Vis spectroscopy. The doping of nitrogen and capping of carbonized phytoconstituents on NC-AgNPs are revealed by XPS and FT-IR spectroscopy. The synthesized NC-AgNPs are performed as an excellent catalyst for the reductive degradation of MB and MO using NaBH 4 and the calculated rate constants are about 0.1581 and 0.0785 min −1 , respectively.
Journal of Coordination Chemistry, 2022
Journal of Molecular Structure, 2020
Herein, we described a versatile one step mild hydrothermal approach for the synthesis of N-doped... more Herein, we described a versatile one step mild hydrothermal approach for the synthesis of N-doped carbon supported silver nanoparticles (NC-AgNPs) using unripe Prunus mume (P. mume) fruit extract as both carbon inception and reducing agent for silver ions, in which ammonia is utilized as a nitrogen source. The resulting NC-AgNPs has been employed for the catalytic reductive degradation of methylene blue (MB) and methyl orange (MO). The formation of NC-AgNPs and capping action of P. mume functional groups are studied using Fourier transform infrared (FT-IR), and ultraviolet-visible (UV-Vis) spectroscopic techniques. The crystallinity, surface morphology, and surface functionalities of NC-AgNPs are analyzed by X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM) and X-ray photoelectron spectroscopy (XPS), respectively. The formation of NC-AgNPs is confirmed from the maximum absorbance at 442 nm and the appearance of yellow color using UV-Vis spectroscopy. The doping of nitrogen and capping of carbonized phytoconstituents on NC-AgNPs are revealed by XPS and FT-IR spectroscopy. The synthesized NC-AgNPs are performed as an excellent catalyst for the reductive degradation of MB and MO using NaBH 4 and the calculated rate constants are about 0.1581 and 0.0785 min −1 , respectively.
Journal of Heterocyclic Chemistry, 2016
1,3‐Thiazolo[4,3‐a]isoquinoline and 1,3‐thiazolo[3,4‐a]quinoline derivatives were generated by us... more 1,3‐Thiazolo[4,3‐a]isoquinoline and 1,3‐thiazolo[3,4‐a]quinoline derivatives were generated by using four component reactions of acid chlorides, potassium thiocyanate, alkyl bromides, and isoquinoline or quinoline in the presence of catalytic amount of nanoparticles of ZnO at room temperature under solvent‐free conditions in good yield.
Reaction Kinetics, Mechanisms and Catalysis, Oct 18, 2020
An ultrasound-assisted, simple, fast and efficient method reported for the chemoselective N-formy... more An ultrasound-assisted, simple, fast and efficient method reported for the chemoselective N-formylation of amines with formic acid in the presence of nanozeolite clinoptilolite (nano-CP) under solvent-free reaction conditions to give the corresponding formamides. The ultrasound increased the rate of the reaction and afforded excellent yields at room temperature. This method has the advantages of high yields, mild conditions, simple methodology, easy work up and short reaction times. The catalyst was characterized by different techniques, was recovered and reused several times without the significant loss of its catalytic performance.
Journal of Molecular Structure, Feb 1, 2021
Two-dimensional zeolite ITQ-2 was reacted successively with (3-chloropropyl)triethoxysilane, 2-(N... more Two-dimensional zeolite ITQ-2 was reacted successively with (3-chloropropyl)triethoxysilane, 2-(N,N-diethylamino)ethylamine, and ammonia to give a support bearing the ϵSi(CH 2) 3 NHCH 2 CH 2 NEt 2 groups at the surface. Subsequent treatment with palladium(II) acetate afforded an immobilized palladium catalyst 3, which was tested in the Heck coupling of n-butyl acrylate with bromobenzene to give n-butyl cinnamate (4). This (pre)catalyst, which acts as a source of active metal species for the reaction occurring in the liquid phase, showed good activity in N,N-dimethylformamide and N,N-dimethylacetamide at 150°C.
Applied Organometallic Chemistry, Oct 7, 2018
Amino pyrimidine nanocellulose-supported Palladium nanoparticles (CNC-AMPD-Pd) as a novel bio sup... more Amino pyrimidine nanocellulose-supported Palladium nanoparticles (CNC-AMPD-Pd) as a novel bio supported nanocatalyst was prepared and characterized by ICP-AES, FT-IR, XRD, SEM, TEM, TGA and EDX techniques. The nanocatalyst demonstrated outstanding performance in Pechmann condensation between different substituted phenols and ethyl acetoacetate to obtain coumarin derivatives in good to excellent yields. The catalyst is easily recycled and reused without loss of the catalytic activity. The combined merits of reusable catalyst and solvent-free reaction conditions make the condensation with safe operation, no leaching of pd into environment, low pollution, rapid access to products and simple workup.
Cellulose, Apr 24, 2019
A new Pd catalyst chemically bonded to cellulose nanocrystals surfaces (CNC-BIA-Pd) was developed... more A new Pd catalyst chemically bonded to cellulose nanocrystals surfaces (CNC-BIA-Pd) was developed. 2-(1H-Benzo[d]imidazol-2-yl) aniline (BIA), tosylated cellulose nanocrystals (CNC-TOS) and PdCl 2 were the reactants for the synthesis of the new catalyst designed to be used for the Ullmann reaction. The modified cellulose nano catalyst was characterized with various analytical tools. The catalyst had excellent selectivity and activity in a short reaction time (45 min) and outstanding TON (490) and TOF (1960) values. The nano catalyst was determined to be reusable for at least eight cycles. The CNC-BIA-Pd catalyst indicated excellent catalytic efficiency for the Ullmann CO reaction when it was compared to commercial palladium catalysts. Graphical abstract A new Pd catalyst chemically bonded to cellulose nanocrystal surfaces (CNC-BIA-Pd) was developed and used for the Ullmann reactions. The catalyst had excellent selectivity and activity in a short reaction time and outstanding TON (490) and TOF (1960) values. The nano catalyst was determined to be reusable for at least eight cycles.
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Papers by Daryoush Zareyee