1
|
Fazl F, Torabi M, Yarie M, Zolfigol MA. Synthesis and application of novel urea-benzoic acid functionalized magnetic nanoparticles for the synthesis of 2,3-disubstituted thiazolidin-4-ones and hexahydroquinolines. RSC Adv 2022; 12:16342-16353. [PMID: 35747527 PMCID: PMC9158513 DOI: 10.1039/d2ra02205b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 05/24/2022] [Indexed: 01/17/2023] Open
Abstract
In this work, we reported the synthesis and application of a new urea-benzoic acid containing ligand [(OEt)3Si(CH2)3-urea-benzoic acid] for the functionalization of silica coated magnetic nanoparticles. The resulting structure, namely Fe3O4@SiO2@(CH2)3-urea-benzoic acid, was characterized through different techniques including FT-IR, SEM, EDX-Mapping, VSM and TGA/DTG analysis. Then, Fe3O4@SiO2@(CH2)3-urea-benzoic acid was applied as a heterogeneous dual acidic and hydrogen bonding catalyst for the synthesis of 2,3-disubstituted thiazolidin-4-ones and hexahydroquinolines under mild and green reaction conditions. More importantly, all of the desired products were obtained with relatively good yields. Also, the catalyst was recovered and reused for four successive runs without significant reduction in yield of the model reaction.
Collapse
Affiliation(s)
- Fazlulhaq Fazl
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| | - Morteza Torabi
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| | - Meysam Yarie
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| | - Mohammad Ali Zolfigol
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University Hamedan Iran
| |
Collapse
|
2
|
Zeinali S, Zare Fekri L, Hassan Zadeh L. Recent advances on the nanocatalyzed synthesis of 1,3‐thiazolidines. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
3
|
Kausar A, Bhatti HN, Iqbal M. Kinetics and Equilibrium of Radioactive Metal Adsorption onto Sugarcane Bagasse Waste: Comparison of Batch and Column Adsorption Modes. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2019-1418] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Abstract
Sugarcane bagasse waste biomass (SBWB) efficacy for the adsorption of Zr(IV) was investigated in batch and column modes. The process variables i.e. pH 1–4 (A), adsorbent dosage 0.0–0.3 g (B), and Zr(IV) ions initial concentration 25–200 mg/L (C) were studied. The experiments were run under central composite design (CCD) and data was analysed by response surface methodology (RSM) methodology. The factor A, B, C, AB interaction and square factor A2, C2 affected the Zr(IV) ions adsorption onto SBWB. The quadratic model fitted well to the adsorption data with high R2 values. The effect of bed height, flow rate and Zr(IV) ions initial concentration was also studied for column mode adsorption and efficiency was evaluated by breakthrough curves as well as Bed Depth Service and Thomas models. Bed height and Zr(IV) ions initial concentration enhanced the adsorption of capacity of Zr(IV) ions, whereas flow rate reduced the column efficiency.
Collapse
Affiliation(s)
- Abida Kausar
- Department of Chemistry , Government College Women University , Faisalabad 38040 , Pakistan
| | - Haq Nawaz Bhatti
- Department of Chemistry , University of Agriculture , Faisalabad 38040 , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , The University Lahore , Lahore , Pakistan
| |
Collapse
|
4
|
Nenajdenko VG. Access to molecular complexity. Multicomponent reactions involving five or more components. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr5010] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The evaluation of the significance of a chemical transformation addresses many factors, including such important characteristics as the number of chemical bonds formed in one step, the reaction time, labour intensity, the cost of reactants and catalysts and so on. The amount of waste produced in the reaction has also gained increasing importance in recent years. Multicomponent reactions (MCRs) occupy a special place as a synthetic tool in modern organic chemistry. These reactions allow the synthesis of target products with complex structures, minimizing labour costs. This review summarizes the literature on multicomponent reactions involving five or more components. The data in the review are classified according to the number of reactants participating in the reaction and the types of reactions. It is worth noting that in some cases, these transformations can be a part of a domino process, making this classification difficult, if not impossible. The structural diversity of the reaction products greatly increases with increasing number of components involved in the MCR, which becomes virtually unlimited when using combinations of MCRs. This review highlights the main trends of past decades in the field of MCRs. The last two decades have witnessed an explosive growth in the number of publications in this area of chemistry.
The bibliography includes 309 references.
Collapse
|
5
|
Kaur A, Kaur AP, Gautam P, Gautam D, Chaudhary RP. Ultrasound‐Assisted Facile Synthesis and Antimicrobial Studies of Alkanediyl‐bis‐thiazolidin‐4‐ones and Alkanediyl‐bis‐thiazinan‐4‐ones. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Amritpal Kaur
- Department of ChemistrySant Longowal Institute of Engineering and Technology Longowal (Sangrur) Punjab‐148106 India
| | - Avneet Pal Kaur
- Department of ChemistrySant Baba Bhag Singh University Jalandhar Punjab 144030 India
| | - Poonam Gautam
- Department of ChemistrySant Longowal Institute of Engineering and Technology Longowal (Sangrur) Punjab‐148106 India
| | - Deepika Gautam
- Department of ChemistrySant Baba Bhag Singh University Jalandhar Punjab 144030 India
| | - Ram Pal Chaudhary
- Department of ChemistrySant Longowal Institute of Engineering and Technology Longowal (Sangrur) Punjab‐148106 India
| |
Collapse
|
6
|
Habib A, Bhatti HN, Iqbal M. Metallurgical Processing Strategies for Metals Recovery from Industrial Slags. ACTA ACUST UNITED AC 2019. [DOI: 10.1515/zpch-2019-0001] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Abstract
Slag produced as a byproduct in industrial processes, contains considerable metals contents, which need to be recovered to avoid environmental contamination. In present review, the types, applications, recovery of metals from slag and their hazardous effects have been discussed. Gravimetric, magnetic, floatation, pyrometallurgical and hydrometallurgical treatments are discussed for processing of charge chrome, steel, copper smelter, brass smelter, tin, incineration, ferrochrome and silico-manganese slags for the extraction of various metal ions (Mg, Cu, Zn, Pb, Cd, Ni, Co, Mn, Fe, As, Cr, Al, Nb, Ag, Au, Nb, Ta, Cu, Co, Ni, Fe, V, Cr). The possibility of biometallurgical processing of slags is also evaluated. Merits and demerits of extraction and purification techniques are highlighted with possible suggestions and possibility of integrated leaching techniques is also discussed.
Collapse
Affiliation(s)
- Aqsa Habib
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Haq Nawaz Bhatti
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , University of Lahore , Lahore , Pakistan
| |
Collapse
|
7
|
Shahbazi-Alavi H, Khojasteh-Khosro S, Safaei-Ghomi J, Nazemzadeh SH. Sonosynthesis of furan-2(5H)-ones using nanosilica-tethered polyhedral oligomeric silsesquioxanes. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01711-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
8
|
Jamil A, Bokhari TH, Iqbal M, Bhatti IA, Zuber M, Nisar J, Masood N. Gamma Radiation and Hydrogen Peroxide Based Advanced Oxidation Process for the Degradation of Disperse Dye in Aqueous Medium. ACTA ACUST UNITED AC 2019. [DOI: 10.1515/zpch-2019-1384] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Abstract
In view of promising efficiency of advanced oxidation process (AOP), gamma radiation in combination with H2O2 was employed for the degradation of disperse red 73 (DR73) dye. Cs-137 gamma radiation source was used for dye aqueous solution irradiation. The process variables such as pH (3–9), H2O2 concentration (0.3–0.9 mL), gamma radiation absorbed dose (1–20 kGy) and DR73 initial concentration (50–150 mg/L) were optimized for maximum degradation of dye. The efficiency of AOP was evaluated on the basis of dye degradation, water quality parameters and toxicity reduction. Degradation of DR73 was achieved 69% using gamma radiation absorbed dose of 20 kGy and at the same dose 96.3% degradation was achieved in the presence of 0.9 mL/L H2O2. The dye degradation found to be dependent on dye initial concentration and pH of the medium. The radiolytic progress of DR73 was monitored by Fourier transform infrared (FTIR) and UV-Visible spectroscopy. The chemical oxygen demand (COD) and biological oxygen demand (BOD) were reduced significantly in response of treatment of dye at optimum conditions of process variables. The toxicity of treated and un-treated dye solution was monitored by haemolytic and Ames assays. Results revealed that the toxicity of DR73 dye was also reduced significantly after treatment. Findings revealed that the gamma radiation based AOPs are promising and could possibly be used for the remediation of textile wastewater contains toxic dyes.
Collapse
Affiliation(s)
- Aneela Jamil
- Department of Chemistry , Government College University , Faisalabad 38000 , Pakistan
| | | | - Munawar Iqbal
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Ijaz Ahmad Bhatti
- Department of Chemistry , University of Agriculture , Faisalabad 38000 , Pakistan
| | - Muhammad Zuber
- Department of Chemistry , Government College University , Faisalabad 38000 , Pakistan
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Jan Nisar
- National Centre of Excellence in Physical Chemistry , University of Peshawar , Peshawar 25120 , Pakistan
| | - Nasir Masood
- Department of Environmental Sciences , COMSATS University Islamabad, Sub Campus Vehari , Punjab , Pakistan
- Boreal Ecosystem Research Initiative (BERI) , Grenfell Campus Memorial University , Corner Brook, NL A2H 5G4 , Canada
| |
Collapse
|
9
|
Kamran U, Bhatti HN, Iqbal M, Nazir A. Green Synthesis of Metal Nanoparticles and their Applications in Different Fields: A Review. ACTA ACUST UNITED AC 2019. [DOI: 10.1515/zpch-2018-1238] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Abstract
Nanotechnology is an art for application and handling of materials at very small scales i.e. 1–100 nm. The materials at this scale exhibit significantly different properties compared to same materials at larger scales. There are so many physical and chemical methods for the synthesis of nanoscale materials but the most appropriate are the ones that synthesize materials using green chemistry eco-friendly techniques. Recently, the collaboration between nanotechnology and biology has opened up new horizons of nanobiotechnology that integrates the use of biological materials in a number of biochemical and biophysical processes. This approach has significantly boosted up nanoparticles (NPs) production without employing harsh and toxic conditions and chemicals. This review is aimed to provide an outline of latest developments in synthesis of NPs through biotic entities and their potential applications.
Collapse
Affiliation(s)
- Urooj Kamran
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Haq Nawaz Bhatti
- Department of Chemistry , University of Agriculture , Faisalabad , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| |
Collapse
|
10
|
Barkaat S, Zuber M, Zia KM, Noreen A, Tabasum S. UV/H 2O 2/Ferrioxalate Based Integrated Approach to Decolorize and Mineralize Reactive Blue Dye: Optimization Through Response Surface Methodology. Z PHYS CHEM 2019. [DOI: 10.1515/zpch-2019-1388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Abstract
The decolorization and mineralization of Reactive Blue 222 dye was studied using UV/H2O2/ferrioxalate approach in combination with Pleorotus ostreatus. The dye was decolorized by UV/H2O2/ferrioxalate based advanced oxidation process (AOP) at different levels of process variables dye concentration, catalyst dose, pH, reaction time and resultantly, 80% decolorization was achieved. Pleorotus ostreatus treatment enhanced the dye degradation up to 92% at optimum levels of pH, temperature, inoculum size, carbon and nitrogen sources at specific concentration. Response Surface Methodology (RSM) was employed for optimization under face-centered central composite design (CCD). Although both treatments were found efficient for the removal of dye, but on applying the integrated approach, 96% dye removal was obtained which led to complete degradation of the dye. FTIR analysis confirmed the degradation of dye into low mass compounds. The water quality assurance parameters were measured to assess the mineralization efficiency. A significant reduction in COD (94%) and TOC (92%) were found when dye was degraded integrated approach. A phytotoxicity analysis on Pisum sativum plant revealed the non-toxic behavior of metabolites produced. Results revealed that the integrated approach is highly promising for the decolorization and mineralization of the Reactive Blue 222 dye and is also extendable to treat the dye in textile wastewater.
Collapse
Affiliation(s)
- Samra Barkaat
- Department of Applied Chemistry , Government College University Faisalabad , Faisalabad , Pakistan
| | - Muhammad Zuber
- Department of Applied Chemistry , Government College University Faisalabad , Faisalabad , Pakistan
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Khalid Mahmood Zia
- Department of Applied Chemistry , Government College University Faisalabad , Faisalabad , Pakistan
| | - Aqdas Noreen
- Department of Applied Chemistry , Government College University Faisalabad , Faisalabad , Pakistan
| | - Shazia Tabasum
- Department of Applied Chemistry , Government College University Faisalabad , Faisalabad , Pakistan
| |
Collapse
|
11
|
Majid F, Malik A, Ata S, Hussain Z, Bibi I, Iqbal M, Rafay M, Rizvi H. Structural and Optical Properties of Multilayer Heterostructure of CdTe/CdSe Thin Films. Z PHYS CHEM 2018. [DOI: 10.1515/zpch-2018-1339] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
CdTe/CdSe multilayer heterostructures thin films were prepared by thermal evaporation method. The CdTe/CdSe layers deposited on glass substrate and effects of annealing temperature on optical and structural properties of thin films were investigated. The XRD analysis revealed that CdTe and CdSe were in cubic (111) and hexagonal (100) forms. By increasing the annealing temperature, intensity of XRD peaks increased for multilayer heterostructures. Band alignment in heterostructures of CdTe/CdSe was of type II. Energy band gaps values for CdTe/CdSe multilayer heterostructures increased with respect to bulk compounds. During emission, red and blue shifts are observed in visible region in photoluminescence spectrum of CdTe/CdSe samples. Due to better crystallinity of multilayer thin film, 1LO, 2LO and 3LO phonon modes were observed in Raman spectrum.
Collapse
Affiliation(s)
- Farzana Majid
- Department of Physics , University of the Punjab , Lahore , Pakistan
| | - Abdul Malik
- National Institute for Laser and Optronics (NILOP) , Islamabad , Pakistan
| | - Sadia Ata
- Institute of Chemistry, University of the Punjab , Lahore , Pakistan
| | - Zaheer Hussain
- Department of Physics , University of the Punjab , Lahore , Pakistan
| | - Ismat Bibi
- Department of Chemistry , The Islamia University of Bahawalpur , Bahawalpur , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , University of Lahore , Lahore , Pakistan
| | - Muhammad Rafay
- Department of Forestry, Range and Wildlife Management , The Islamia University of Bahawalpur , Bahawalpur , Pakistan
| | - Hina Rizvi
- Department of Environmental Sciences and Engineering , Government College University , Faisalabad , Pakistan
| |
Collapse
|
12
|
Ata S, Tabassum A, Bibi I, Ghafoor S, Ahad A, Bhatti MA, Islam A, Rizvi H, Iqbal M. Synthesis and Characterization of ZnO Nanorods as an Adsorbent for Cr(VI) Sequestration. Z PHYS CHEM 2018. [DOI: 10.1515/zpch-2018-1203] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Abstract
Zinc oxide (ZnO) nanorods were fabricated through hydrothermal route and employed for the adsorption of Cr(VI) ions from aqueous medium. Zinc nitrate hexahydrate (Zn(NO3)2.6H2O) was used as a zinc precursor and Triton-x 100 was used as a capping agent. As synthesized ZnO nanorods were characterized by UV-visible spectroscopy (UV), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy dispersive X-Ray spectroscopy (EDX) techniques. The adsorption affecting parameters were investigated for maximum adsorption of Cr(VI) onto ZnO nanorods. The adsorption kinetics, isotherms, and thermodynamics were applied for adsorption mechanism evaluation. Maximum adsorption of Cr(VI) ions (250 mg/g) was achieved using 0.055 g/L ZnO dose at pH 2.0 for the contact time of 30 min. Pseudo-second-order kinetic model and Langmuir isotherm explained well the Cr(VI) adsorption onto ZnO nanorods. The Cr(VI) adsorption onto ZnO was spontaneous and endothermic in nature. In view of promising adsorption efficiency, ZnO nanorods could possibly be used for Cr(VI) ions removal from wastewater and also extendable for the adsorption of other heavy metals ions.
Collapse
Affiliation(s)
- Sadia Ata
- Institute of Chemistry , University of the Punjab , Lahore , Pakistan
| | - Anila Tabassum
- Institute of Chemistry , University of the Punjab , Lahore , Pakistan
| | - Ismat Bibi
- Department of Chemistry , Islamia University of Bahawalpur , Bahawalpur , Pakistan
| | - Samina Ghafoor
- Institute of Chemistry , University of the Punjab , Lahore , Pakistan
| | - Abdul Ahad
- Government Islamia College Civil Lines , Lahore , Pakistan
| | - Muhammad Arif Bhatti
- Mineral Processing Research Centre, PCSIR Laboratories Complex , Ferozepur Road, Lahore , Pakistan
| | - Atif Islam
- Department of Polymer Engineering and Technology , University of the Punjab , Lahore , Pakistan
| | - Hina Rizvi
- Department of Environmental Sciences and Engineering , Government College University , Faisalabad , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| |
Collapse
|
13
|
Ghomi JS, Bakhtiari A. Ultrasonic Accelerated Biginelli-Like Reaction by the Covalently Anchored Copper-Isatoic Anhydride over the Modified Surface of Mesoporous SBA-15 to the Synthesis of Pyrimidines. ChemistrySelect 2018. [DOI: 10.1002/slct.201802435] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Javad Safaei Ghomi
- Department of Organic Chemistry; Faculty of Chemistry; University of Kashan; Kashan, P.O. Box 87317-51167 I. R. Iran
| | - Atefeh Bakhtiari
- Department of Organic Chemistry; Faculty of Chemistry; University of Kashan; Kashan, P.O. Box 87317-51167 I. R. Iran
| |
Collapse
|
14
|
Khanivar R, Zare A. Highly effectual synthesis of 4,6-diarylpyrimidin-2(1H)-ones using N,N,N′,N′-tetramethylethylenediaminium-N,N′-disulfonic acid hydrogen sulfate as a dual-functional catalyst. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2018-0075] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The highly effectual synthesis of 4,6-diarylpyrimidin-2(1H)-ones via the one-pot multicomponent reaction of acetophenones with arylaldehydes and urea in the presence of trimethylsilyl chloride and a catalytic amount of the ionic liquid N,N,N′,N′-tetramethylethylenediaminium-N,N′-disulfonic acid hydrogen sulfate ([TMEDSA][HSO4]2) under solvent-free conditions has been described. The reaction results and conditions of the catalytic system have been compared with previously reported catalysts. [TMEDSA][HSO4]2 afforded better results in comparison with the reported catalysts in terms of one or more of these factors: yield, temperature, the reaction media, time, and generality. Moreover, a plausible reaction mechanism based on dual functionality of the catalyst has been proposed.
Collapse
Affiliation(s)
- Roghayyeh Khanivar
- Department of Chemistry , Payame Noor University , PO Box 19395-3697 Tehran , I.R. Iran
| | - Abdolkarim Zare
- Department of Chemistry , Payame Noor University , PO Box 19395-3697 Tehran , I.R. Iran , e-mail:
| |
Collapse
|
15
|
Karami M, Zare A. A highly effective and mild protocol for the production of 1-thioamidoalkyl-2-naphthols using 1,3-disulfonic acid imidazolium trifluoroacetate as a dual-functional catalyst. ACTA ACUST UNITED AC 2018. [DOI: 10.1515/znb-2018-0001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Abstract
A solvent-free protocol for the production of 1-thioamidoalkyl-2-naphthols via a one-pot multi-component reaction of arylaldehydes with 2-naphthol and thioacetamide using the ionic liquid 1,3-disulfonic acid imidazolium trifluoroacetate ([Dsim][TFA]) is described. Furthermore, a plausible and attractive mechanism based on the dual functionality of the catalyst is proposed. Because of the dual functionality of [Dsim][TFA] (possessing acidic and basic sites), it is found to be generally highly effective, affording the products in high yields and short reaction times under mild conditions. We claim that this is one of the best protocols for the synthesis of 1-thioamidoalkyl-2-naphthols (in terms of yield, temperature, conditions, and/or the reaction time).
Collapse
Affiliation(s)
- Mostafa Karami
- Department of Chemistry , Payame Noor University, PO Box 19395-3697 , Tehran , Iran
| | - Abdolkarim Zare
- Department of Chemistry , Payame Noor University, PO Box 19395-3697 , Tehran , Iran , e-mail:
| |
Collapse
|