1
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Maurya MR, Nandi M, Kumar N, Avecilla F. Polymer Supported Nitrogen-Bridged Symmetrical Binuclear Dioxidomolybdenum(VI) Complexes and Their Homogeneous Analogues as Potential Catalysts for Efficient Synthesis of 2-Amino-3-Cyano-4H-Chromenes/Pyrans. Chemistry 2024; 30:e202400631. [PMID: 38491788 DOI: 10.1002/chem.202400631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/15/2024] [Accepted: 03/15/2024] [Indexed: 03/18/2024]
Abstract
Reaction of 2-chloromethyl-1H-benzimidazole with known intermediates (i-iii), prepared from diaminoguanidine hydrochloride with salicylaldehyde, 5-bromosalicylaldehyde or 3,5-di-tert-butylsalicylaldehyde, in the presence of triethylamine (NEt3) led to the formation of benzimidazole appended new ligands, H4L1-H4L3 (I-III). The homogeneous nitrogen-bridged symmetrical binuclear complexes, [(MoVIO2)2(L1)(H2O)2] (1), [(MoVIO2)2(L2)(H2O)2] (2) and [(MoVIO2)2(L3)(MeOH)2] (3) have been isolated by reacting these ligands with [MoVIO2(acac)2] in a 1 : 2 molar ratio in refluxing methanol. Using 1 : 1 (ligand to Mo precursor) molar ratio under above reaction conditions resulted in the corresponding mononuclear complexes, [MoVIO2(H2L1)(MeOH)] (4), [MoVIO2(H2L2)(H2O)] (5) and [MoVIO2(H2L3)(MeOH)] (6). The binuclear heterogeneous compounds [(MoVIO2)2(L1)(DMF)2]@PS (PS-1), [(MoVIO2)2(L2)(DMF)2]@PS (PS-2) and [(MoVIO2)2(L3)(DMF)2]@PS (PS-3) have been obtained by immobilization of 1-3 onto chloromethylated polystyrene (PS) beads. All synthesized ligands, homogeneous as well as supported compounds have been characterized by elemental analyses and various spectroscopic methods. Single crystal X-ray diffraction study of complexes 1 and 3 confirms their nitrogen-bridged symmetrical binuclear structures while 4 is mononuclear. Heterogeneous compounds (PS-1-PS-3) have further been studied by microwave plasma atomic emission spectroscopy, X-ray photoelectron spectroscopy, and field emission scanning electron microscopy along with energy dispersive spectroscopy. These compounds (homogeneous and heterogeneous) were explored for catalytic applications to one-pot multicomponent reactions (MCRs) for efficient synthesis of biologically active 2-amino-3-cyano-4H-chromenes/pyrans (21 examples). Optimising various reaction parameters helped in achieving as high as 97 % yields of products. Though, only half equivalent of the binuclear complexes (1-3) was required compared to mononuclear analogues (4-6) to achieve comparable yields, heterogeneous catalysts have an added advantage due to their stability and recyclability. Suitable reaction mechanism has also been proposed based on isolated intermediates.
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Affiliation(s)
- Mannar R Maurya
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Monojit Nandi
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Naveen Kumar
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247667, India
| | - Fernando Avecilla
- Universidade da Coruña, Grupo NanoToxGen, Centro Interdisciplinar de Química y Biología (CICA), Departamento de Química, Facultade de Ciencias, Campus de A Coruna, 15071, A Coruna, , Spain
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2
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Mazloumi M, Shirini F. Acidic Ionic Liquid Bridge Supported on Nano Rice Husk Ash: An Efficient Promoter for the Conversion of Nitriles to Their Corresponding 5‐Substituted 1
H
‐Tetrazoles and Amides. ChemistrySelect 2023. [DOI: 10.1002/slct.202203554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Masoumeh Mazloumi
- Department of Chemistry College of Science University of Guilan Rasht 41335-19141 Iran
| | - Farhad Shirini
- Department of Chemistry College of Science University of Guilan Rasht 41335-19141 Iran
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3
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Fabitha K, Arya CG, Chandrakanth M, Banothu J. Green chemistry approach: sodium fluoride-catalyzed highly efficient microwave irradiation-assisted synthesis of substituted chromene derivatives in aqueous medium. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04929-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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4
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Mazloumi M, Shirini F. Nano Rice Husk Ash Modified with Acidic Ionic Liquid Bridge: An Efficient Promoter for the Synthesis of 1,2,4-Triazolo Quinazolinones. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2146145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Masoumeh Mazloumi
- Department of Chemistry, College of Sciences, University of Guilan, Rasht, Iran
| | - Farhad Shirini
- Department of Chemistry, College of Sciences, University of Guilan, Rasht, Iran
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5
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Garg P, Reddy SR. Biomass‐derived Sugar Ionic Liquid as a Sustainable Organocatalyst: An Efficient Synthesis of Functionalized Dihydropyrano Coumarins. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pooja Garg
- Department of Chemistry School of Advanced Sciences Vellore Institute of Technology Vellore 632014 India
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6
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Chahkamali FO, Sobhani S, Sansano JM. A novel base-metal multifunctional catalyst for the synthesis of 2-amino-3-cyano-4H-chromenes by a multicomponent tandem oxidation process. Sci Rep 2022; 12:2867. [PMID: 35190576 PMCID: PMC8861043 DOI: 10.1038/s41598-022-06759-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 02/01/2022] [Indexed: 12/24/2022] Open
Abstract
A novel base-metal multifunctional nanomagnetic catalyst is prepared by the immobilization of tungstate anions onto γ-Fe2O3 supported with imidazolium moieties. The (γ-Fe2O3-Im-Py)2WO4 was fully characterized using FT-IR, XPS, TEM, FESEM, ICP, TGA, VSM and XRD and used as a multifunctional heterogeneous catalyst for the synthesis of 2-amino-3-cyano-4H-chromenes via a multicomponent tandem oxidation process starting from alcohols under solvent-free conditions. During this process, tungstate catalyzes the oxidation of a wide range of alcohols in the presence of TBHP as a clean source. The in-situ formed aldehydes are condensed with malononitrile and β-dicarbonyl compounds/naphthols/4-hydroxycumarin through promotion by pyridine and imidazolium moieties of the catalyst. By this method, a variety of 2-amino-3-cyano-4H-chromenes are generated in good to high yields from alcohols as inexpensive and easily available starting materials. The catalyst is recovered easily by the aid of an external magnetic field and reused in five successive runs with insignificant decreasing activity.
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7
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Poor Heravi MR, Aghamohammadi P, Vessally E. Green synthesis and antibacterial, antifungal activities of 4H-pyran, tetrahydro-4H-chromenes and spiro2-oxindole derivatives by highly efficient Fe3O4@SiO2@NH2@Pd(OCOCH3)2 nanocatalyst. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131534] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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8
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Agarwal S, Sethiya A, Soni J, Sahiba N, Teli P. An Overview of Recent Advances in the Catalytic Synthesis of Substituted Pyrans. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shikha Agarwal
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur
| | - Ayushi Sethiya
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur
| | - Jay Soni
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur
| | - Nusrat Sahiba
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur
| | - Pankaj Teli
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLSU Udaipur
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9
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Kiyani H, Daroughezadeh Z. Efficient and Aqoues Synthesis of 3,4-Disubstituted Isoxazol-5(4H)-one Derivatives Using Piperazine under Green Conditions. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Thongni A, Phanrang PT, Dutta A, Nongkhlaw R. One-pot synthesis of 2-amino-3-cyano-4H-pyrans and pyran-annulated heterocycles using sodium citrate as an organo-salt based catalyst in aqueous ethanol. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1998535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Aiborlang Thongni
- Organic Synthesis Laboratory, Centre for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, India
| | - Pynskhemborlang T. Phanrang
- Computational Laboratory, Centre for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, India
| | - Arup Dutta
- Organic Synthesis Laboratory, Centre for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, India
| | - Rishanlang Nongkhlaw
- Organic Synthesis Laboratory, Centre for Advanced Studies in Chemistry, North Eastern Hill University, Shillong, India
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11
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Sameri F, Bodaghifard MA, Mobinikhaledi A. Zn (II)‐Schiff base covalently anchored to CaO@SiO
2
: A hybrid nanocatalyst for green synthesis of 4
H
‐pyrans. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Fatemeh Sameri
- Department of Chemistry, Faculty of Science Arak University Arak Iran
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12
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Alipour Khoshdel M, Shirini F, Nikoo Langarudi MS, Zabihzadeh M, Biglari M. Three-component synthesis of 4 H-pyran scaffolds accelerated by a gabapentin-based natural deep eutectic solvent. NEW J CHEM 2021. [DOI: 10.1039/d0nj05342b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A new natural deep eutectic solvent was prepared from gabapentin and choline chloride and its catalytic activity was investigated.
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Affiliation(s)
| | - Farhad Shirini
- Department of Chemistry
- College of Sciences
- University of Guilan
- Rasht
- Iran
| | | | - Mehdi Zabihzadeh
- Department of Chemistry
- College of Sciences
- University of Guilan
- Rasht
- Iran
| | - Mohammad Biglari
- Department of Chemistry
- College of Sciences
- University of Guilan
- Rasht
- Iran
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13
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Sharma D, Kumar M, Das P. Application of cyclohexane-1,3-diones for six-membered oxygen-containing heterocycles synthesis. Bioorg Chem 2020; 107:104559. [PMID: 33418315 DOI: 10.1016/j.bioorg.2020.104559] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 11/23/2020] [Accepted: 12/10/2020] [Indexed: 12/17/2022]
Abstract
Cyclohexan-1,3-dione derivatives are versatile scaffolds for the synthesis of a variety of value-added organic molecules including heterocycles and natural products. Six-membered oxygen heterocycles prepared from cyclohexan-1,3-diones are of much importance as they are intermediate for the synthesis of a number of natural products and several other valuable bioactive molecules which shows anti-viral, anti-bacterial, analgesic, antimalarial, anti-inflammatory, anti-allergic, anti-tumor and anti-cancer activities. These advantages have inspired us to write a detailed survey on the newly developed methods which are very essential in the construction of six-membered oxygen heterocycles. Further, the versatility in the chemistry of cyclohexan-1,3-dione and its derivatives is due to the presence of highly active methylene moiety and its active di-carbonyl groups. Recently, reactions of cyclohexane-1,3-dione and its derivatives with other substrates for instance aldehydes, malononitriles, NMSM, chalcones, isatin etc. have been established for the construction of a variety of six-membered oxygen heterocycles. The studies reported in this review article involved the synthesis of six-membered oxygen-containing heterocycles which includes 4H-chromen-5(6H)-one, 2H-xanthen-1(9H)-one, 2H-xanthen-1,8(5H,9H)-dione, 6H-chromen-2,5-dione derivatives and natural products having six-membered oxygen heterocycles from cyclohexane-1,3-dione and its derivatives as one of the substrate.
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Affiliation(s)
- Dharminder Sharma
- PG Department of Chemistry, JCDAV College Dasuya, Punjab 144205, India; Chemical Technology Department, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, HP, India.
| | - Manish Kumar
- Department of Chemistry, Govt. College Seraj at Lambathach, Distt. Mandi, 175048 HP, India; Chemical Technology Department, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, HP, India
| | - Pralay Das
- Chemical Technology Department, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, HP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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14
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Sharma A, Wakode S, Fayaz F, Khasimbi S, Pottoo FH, Kaur A. An Overview of Piperazine Scaffold as Promising Nucleus for Different Therapeutic Targets. Curr Pharm Des 2020; 26:4373-4385. [DOI: 10.2174/1381612826666200417154810] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 04/10/2020] [Indexed: 11/22/2022]
Abstract
Piperazine scaffolds are a group of heterocyclic atoms having pharmacological values and showing
significant results in pharmaceutical chemistry. Piperazine has a flexible core structure for the design and synthesis
of new bioactive compounds. These flexible heterogenous compounds exhibit various biological roles, primarily
anticancer, antioxidant, cognition enhancers, antimicrobial, antibacterial, antiviral, antifungal, antiinflammatory,
anti-HIV-1 inhibitors, antidiabetic, antimalarial, antidepressant, antianxiety and anticonvulsant
activities, etc. In the past few years, researchers focused on the therapeutic profile of piperazine synthons for
different biological targets. The present review highlights the development in designing pharmacological activities
of nitrogen-containing piperazine moiety as a therapeutic agent. The extensive popularity of piperazine as a
drug of abuse and their vast heterogeneity research efforts over the last years motivated the new investigators to
further explore this area.
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Affiliation(s)
- Anjali Sharma
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Sector-3, MB Road, Pushp Vihar, New Delhi-110017, India
| | - Sharad Wakode
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Sector-3, MB Road, Pushp Vihar, New Delhi-110017, India
| | - Faizana Fayaz
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Sector-3, MB Road, Pushp Vihar, New Delhi-110017, India
| | - Shaik Khasimbi
- Department of Pharmaceutical Chemistry, Delhi Institute of Pharmaceutical Sciences and Research, Sector-3, MB Road, Pushp Vihar, New Delhi-110017, India
| | - Faheem H. Pottoo
- Department of Pharmacology, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, P.O. BOX 1982, Dammam 31441, Saudi Arabia
| | - Avneet Kaur
- SGT college of Pharmacy, SGT University, Gurugram, Haryana- 122001, India
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15
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Kargar PG, Bagherzade G, Eshghi H. Novel biocompatible core/shell Fe 3O 4@NFC@Co(ii) as a new catalyst in a multicomponent reaction: an efficient and sustainable methodology and novel reusable material for one-pot synthesis of 4 H-pyran and pyranopyrazole in aqueous media. RSC Adv 2020; 10:37086-37097. [PMID: 35521285 PMCID: PMC9057109 DOI: 10.1039/d0ra04698a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/13/2020] [Indexed: 12/17/2022] Open
Abstract
Today, due to the developing need for inexpensive catalysts, recyclable magnetic nanocatalysts immobilized on polysaccharides possess many advantages over classical heterogeneous catalysts. However, cellulose has been an appealing material in catalysis science and technology. In this work, by controlling the interaction between the inorganic complexes and the support material, we designed a high activity nanostructured combination of a magnetic nanoparticle Fe3O4@NFC@Co(ii) terminated complex as a multi-nuclear catalyst. This protocol involves an environment friendly approach using cobalt acetate. The magnetic nanostructure Fe3O4@NFC@Co(ii) can be used as a novel, green, and a powerful catalyst that demonstrates a short reaction time, high yield and easy procedure for the cascade Knoevenagel-Michael-cyclocondensation reaction for the one-pot synthesis of 4H-pyrans and pyranopyrazoles. The superparamagnetic nanocomposite could be conveniently separated by using an external magnet. Moreover, the catalyst could be reused at least five times in new reaction runs without a noticeable loss of activity. The prepared catalyst was characterized by FT-IR, XRD, VSM, FESEM, EDAX, TEM, ICP, and TGA techniques. The experiments were achieved with good yields and implied that the catalytic method was effective and convenient for heterocyclic synthesis.
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Affiliation(s)
- Pouya Ghamari Kargar
- Department of Chemistry, Faculty of Sciences, University of Birjand Birjand 97175-615 Iran +98 56 32345192 +98 56 32345192
| | - Ghodsieh Bagherzade
- Department of Chemistry, Faculty of Sciences, University of Birjand Birjand 97175-615 Iran +98 56 32345192 +98 56 32345192
| | - Hossein Eshghi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad Mashhad Iran
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16
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Zhu A, Li Q, Feng W, Fan D, Li L. Biocompatible Ionic Liquid Promote One-Pot Synthesis of 2-Amino-4H-Chromenes Under Ambient Conditions. Catal Letters 2020. [DOI: 10.1007/s10562-020-03332-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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17
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Taghva PH, Kabirifard H. Three-Component Efficient Synthesis of 2-Amino-3-cyano-4H-pyrans Catalyzed by Diammonium hydrogen phosphate in Aqueous Media. CURRENT ORGANOCATALYSIS 2020. [DOI: 10.2174/2213337207999200726235542] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The present method is facile, green and effective for the synthesis of 2-amino-3-cyano-4H-pyran
derivatives which are obtained by one-pot three-component condensation reactions of aromatic aldehydes, malononitrile
and methyl acetoacetate using diammonium hydrogen phosphate (DAHP) in aqueous ethanol at room temperature.
Methods:
2-Amino-3-cyano-4H-pyrans were synthesized through a one-pot three-component tandem Knoevenagel cyclocondensation reaction of aromatic aldehydes, malononitrile, and methyl acetoacetate in the presence of 10 mol% of
DAHP as a catalyst under aqueous ethanol medium at room temperature. All obtained structures were confirmed by their
physical constant, IR, 1H NMR, 13C NMR spectroscopy, also elemental analyses for new derivatives.
Results:
Three-component synthesis of 2-amino-3-cyano-4H-pyrans catalyzed by DAHP with aromatic aldehydes, malononitrile and methyl acetoacetate in aqueous ethanol medium at room temperature was prepared. The achieved derivatives
(nine entries) were well synthesized in excellent yields.
Conclusion:
The present method is straightforward, quick, and most efficient green protocol for the synthesis of 2-amino3-cyano-4H-pyran derivatives using highly inexpensive, easily handle and, nontoxic DAHP as an efficient catalyst in
aqueous ethanol medium at room temperature.
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Affiliation(s)
- Pardis Hafez Taghva
- Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Hassan Kabirifard
- Department of Chemistry, North Tehran Branch, Islamic Azad University, Tehran, Iran
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18
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Paczkowski IM, Guedes EP, Mass EB, Meneses EW, Marques LA, Mantovani MS, Russowsky D. Synthesis of hybrid perillyl‐4
H
‐pyrans. Cytotoxicity evaluation against hepatocellular carcinoma
HepG2
/
C3A
cell line. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3977] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ingrid M. Paczkowski
- Laboratório de Sínteses Orgânicas, Instituto de QuímicaDepartamento de Química Orgânica, Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Esthéfani P. Guedes
- Laboratório de Sínteses Orgânicas, Instituto de QuímicaDepartamento de Química Orgânica, Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Eduardo B. Mass
- Laboratório de Sínteses Orgânicas, Instituto de QuímicaDepartamento de Química Orgânica, Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Eliana W. Meneses
- Laboratório de Sólidos & Superfícies, Instituto de Química, Departamento de Química InorgânicaUniversidade Federal do Rio Grande do Sul Porto Alegre Brazil
| | - Lilian A. Marques
- Laboratório de Genética Toxicológica, Centro de Ciências Biológicas, Departamento de Biologia GeralUniversidade Estadual de Londrina Rodovia Celso Garcia, Londrina Brazil
| | - Mário S. Mantovani
- Laboratório de Genética Toxicológica, Centro de Ciências Biológicas, Departamento de Biologia GeralUniversidade Estadual de Londrina Rodovia Celso Garcia, Londrina Brazil
| | - Dennis Russowsky
- Laboratório de Sínteses Orgânicas, Instituto de QuímicaDepartamento de Química Orgânica, Universidade Federal do Rio Grande do Sul Porto Alegre Brazil
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19
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Güngör T. One pot, multicomponent protocol for the synthesis of novel imidazo[1,2-a]pyrimidine-based pyran analogs: a potential biological scaffold. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02601-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Nizhamu M, Alifu Z, Guo Z, Ablajan K. Sodium L-ascorbate-catalyzed one-pot green synthesis of sulfonyl substituted 2-amino-4H-pyran derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-020-04147-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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Biglari M, Shirini F, Mahmoodi NO, Zabihzadeh M, Mashhadinezhad M. A choline chloride-based deep eutectic solvent promoted three-component synthesis of tetrahydrobenzo[b]pyran and pyrano[2,3-d] pyrimidinone (thione) derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2019.127652] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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22
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Introduction of an efficient DABCO-based bis-dicationic ionic salt catalyst for the synthesis of arylidenemalononitrile, pyran and polyhydroquinoline derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127730] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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23
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Sanad SMH, Mekky AEM. Synthesis, in-vitro antibacterial and anticancer screening of novel nicotinonitrile-coumarin hybrids utilizing piperazine citrate. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1743318] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
| | - Ahmed E. M. Mekky
- Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt
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24
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Hiremath PB, Kantharaju K. An Efficient and Facile Synthesis of 2‐Amino‐4
H
‐pyrans &Tetrahydrobenzo[
b
]pyrans Catalysed by WEMFSA at Room Temperature. ChemistrySelect 2020. [DOI: 10.1002/slct.201904336] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Prashant B Hiremath
- Department of Chemistry, Peptide and medicinal chemistry research laboratory Rani Channamma University, P.B. NH-4 Belagavi 591156 Karnataka
| | - K Kantharaju
- Department of Chemistry, Peptide and medicinal chemistry research laboratory Rani Channamma University, P.B. NH-4 Belagavi 591156 Karnataka
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Maddila SN, Maddila S, Kerru N, Bhaskaruni SVHS, Jonnalagadda SB. Facile One‐pot Synthesis of Arylsulfonyl‐4H‐pyrans Catalyzed by Ru Loaded Fluorapatite. ChemistrySelect 2020. [DOI: 10.1002/slct.201901867] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Surya N Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
| | - Suresh Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
| | - Nagaraju Kerru
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
| | - Sandeep V. H. S. Bhaskaruni
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
| | - Sreekantha B Jonnalagadda
- School of Chemistry & PhysicsUniversity of KwaZulu-Natal Westville Campus, Chilten Hills Private Bag 54001 Durban-4000 South Africa
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Chowhan B, Gupta M, Sharma N. Designing of Ultrafine PdNPs Immobilized Pyridinic‐
N
Doped Carbon and Evaluation of its Catalytic Potential for Konevenagel Condensation, Synthesis of 4
H‐
pyran Derivatives and Nitroreduction. ChemistrySelect 2019. [DOI: 10.1002/slct.201903071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Bushra Chowhan
- Department of ChemistryUniversity of Jammu Jammu- 180006 India
| | - Monika Gupta
- Department of ChemistryUniversity of Jammu Jammu- 180006 India
| | - Neha Sharma
- Department of ChemistryUniversity of Jammu Jammu- 180006 India
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Pan S, Li P, Xu G, Guo J, Ke L, Xie C, Zhang Z, Hui Y. MCM-41@Schiff base-Co(OAc)2 as an efficient catalyst for the synthesis of pyran derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04038-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Mozafari R, Heidarizadeh F. Phosphotungstic acid supported on SiO2@NHPhNH2 functionalized nanoparticles of MnFe2O4 as a recyclable catalyst for the preparation of tetrahydrobenzo[b]pyran and indazolo[2,1-b]phthalazine-triones. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.01.065] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Tahmassebi D, Blevins JE, Gerardot SS. Zn(L-proline) 2as an efficient and reusable catalyst for the multi-component synthesis of pyran-annulated heterocyclic compounds. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.4807] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Daryoush Tahmassebi
- Department of Chemistry; Purdue University Fort Wayne; 2101 E. Coliseum Blvd Fort Wayne IN 46805 USA
| | - John E. Blevins
- Department of Chemistry; Purdue University Fort Wayne; 2101 E. Coliseum Blvd Fort Wayne IN 46805 USA
| | - Shori S. Gerardot
- Department of Chemistry; Purdue University Fort Wayne; 2101 E. Coliseum Blvd Fort Wayne IN 46805 USA
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