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Pelit E, Gediz Erturk A, Gul M. 1,3-Naphthoxazine derivatives: Synthesis, in silico pharmacokinetic studies, antioxidant and photoprotective properties. Bioorg Chem 2024; 153:107756. [PMID: 39243737 DOI: 10.1016/j.bioorg.2024.107756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2024] [Revised: 08/19/2024] [Accepted: 08/23/2024] [Indexed: 09/09/2024]
Abstract
Investigation into the interactions between photoprotective agents and skin can offer a precise understanding of their biological behaviors in vitro and in vivo, providing crucial insights for generating new substances. For this purpose, we designed and synthesized a series of naphthoxazine derivatives and examined their photoprotective properties. 1,3-naphthoxazine derivatives were synthesized through the multi-component reaction of 2-naphthol, arylamines and aromatic aldehydes in the presence of copper(II) trifluoromethanesulfonate (Cu(OTf)2) and (±)-Camphor-10-sulfonic acid ((±)-CSA) catalyst system under sonication. The potential of these synthesized 1,3-naphthoxazine derivatives as antioxidants and viable organic structural-based sunscreen ingredients has been investigated. Sun protection factor (SPF) assay results showed that especially compounds 4i, 4c, 4k, 4d, 4r, and 4h had remarkably high activity (23.65, 23.57, 23.04, 21.94, 20.80, and 20.26, respectively at 900 µg/mL concentration). Additionally, antioxidant activity of the synthesized compounds was evaluated and compounds 4h, 4e, 4b, and 4j exhibited the highest activities in DPPH scavenging activity assay (86.46 %, 82.83 %, 80.78 %, and 80.65 % respectively at 400 µg/mL concentration). The synthesized compounds exhibit promising characteristics for effective UV radiation absorption, suggesting their suitability for inclusion in sunscreen formulations. Cytotoxic activity of compound 4k against normal human fibroblast cell line (MRC-5) was determined by CVDK-8 method. The results revealed that the compound provided remarkable viability (87.55 %) of MRC-5 cells at concentration of 100 µM. The study explores their efficacy in providing broad-spectrum protection against UVA and UVB rays, degradation and photostability, ADMET profile, and other pharmacokinetic properties.
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Affiliation(s)
- Emel Pelit
- Department of Chemistry, Faculty of Art and Sciences, Kirklareli University, 39100 Kirklareli, Turkey.
| | - Aliye Gediz Erturk
- Department of Chemistry, Faculty of Art and Sciences, Ordu University, 52100 Ordu, Turkey
| | - Melek Gul
- Department of Chemistry, Faculty of Art and Sciences, Amasya University, 05100 Amasya, Turkey
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2
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Fobi K, Ametsetor E, Bunce RA. A [3+3] Aldol-S NAr-Dehydration Approach to 2-Naphthol and 7-Hydroxyquinoline Derivatives. Molecules 2024; 29:3406. [PMID: 39064984 PMCID: PMC11280476 DOI: 10.3390/molecules29143406] [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: 06/30/2024] [Revised: 07/16/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
A one-pot [3+3] aldol-SNAr-dehydration annulation sequence was utilized to fuse hindered phenols onto aromatic substrates. The transformation joins doubly activated 1,3-disubstituted acetone derivatives (dinucleophiles) with C5-activated 2-fluorobenzaldehyde SNAr acceptors (dielectrophiles) in the presence of K2CO3 in DMF at 65-70 °C to form polysubstituted 2-naphthols and 7-hydroxyquinolines. The reaction is regioselective in adding the most stable anionic center to the aldehyde followed by SNAr closure of the less stabilized anion to the electron-deficient aromatic ring. Twenty-seven examples are reported, and a probable mechanism is presented. In two cases where SNAr activation on the acceptor ring was lower (a C5 trifluoromethyl group on the aromatic ring or a 2-fluoropyridine), diethyl 1,3-acetonedicarboxylate initiated an interesting Grob-type fragmentation to give cinnamate esters as the products.
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Affiliation(s)
| | | | - Richard A. Bunce
- Department of Chemistry, Oklahoma State University, Stillwater, OK 74078-3071, USA; (K.F.); (E.A.)
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3
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Li X, Xu Z. Skeletal Editing: Ring Insertion for Direct Access to Heterocycles. Molecules 2024; 29:1920. [PMID: 38731412 PMCID: PMC11085720 DOI: 10.3390/molecules29091920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/13/2024] Open
Abstract
Skeleton editing has rapidly advanced as a synthetic methodology in recent years, significantly streamlining the synthesis process and gaining widespread acceptance in drug synthesis and development. This field encompasses diverse ring reactions, many of which exhibit immense potential in skeleton editing, facilitating the generation of novel ring skeletons. Notably, reactions that involve the cleavage of two distinct rings followed by the reformation of new rings through ring insertion play a pivotal role in the construction of novel ring skeletons. This article aims to compile and systematize this category of reactions, emphasizing the two primary reaction types and offering a thorough exploration of their associated complexities and challenges. Our endeavor is to furnish readers with comprehensive reaction strategies, igniting research interest and injecting fresh impetus into the advancement of this domain.
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Affiliation(s)
| | - Zhigang Xu
- College of Pharmacy, National & Local Joint Engineering Research Center of Targeted and Innovative Therapeutics, IATTI, Chongqing University of Arts and Sciences, Chongqing 402160, China;
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4
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Shan C, Li R, Wang X. Efficient construction of a β-naphthol library under continuous flow conditions. RSC Adv 2024; 14:2673-2677. [PMID: 38226147 PMCID: PMC10789443 DOI: 10.1039/d3ra08660g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 01/04/2024] [Indexed: 01/17/2024] Open
Abstract
A β-naphthol library has been efficiently constructed utilizing a mild continuous flow procedure, relying on a tandem Friedel-Crafts reaction and starting from readily available arylacetyl chloride and alkynes. Multiple functionalized β-naphthols can be acquired within 160 s in generally high yields (up to 83%). Using an electron-rich phenylacetyl chloride derivative (4-OH- or 4-MeO-) provides spirofused triene dione as the primary product. A scale-up preparation affords a throughput of 4.70 g h-1, indicating potential large-scale application. Herein, we present a rapid, reliable, and scalable method to obtain various β-naphthols in the compound library.
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Affiliation(s)
- Chao Shan
- Heze University Heze Shandong Province 274015 China
| | - Ranran Li
- Heze University Heze Shandong Province 274015 China
| | - Xinchao Wang
- Heze University Heze Shandong Province 274015 China
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5
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Zhang JY, Chen JY, Gao CH, Yu L, Ni SF, Tan W, Shi F. Asymmetric (4+n) Cycloadditions of Indolyldimethanols for the Synthesis of Enantioenriched Indole-Fused Rings. Angew Chem Int Ed Engl 2023; 62:e202305450. [PMID: 37345905 DOI: 10.1002/anie.202305450] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 06/22/2023] [Accepted: 06/22/2023] [Indexed: 06/23/2023]
Abstract
Catalytic asymmetric construction of chiral indole-fused rings has become an important issue in the chemical community because of the significance of such scaffolds. In this work, we have accomplished the first catalytic asymmetric (4+2) and (4+3) cycloadditions of 2,3-indolyldimethanols by using indoles and 2-naphthols as suitable reaction partners under the catalysis of chiral phosphoric acids, constructing enantioenriched indole-fused six-membered and seven-membered rings in high yields with excellent enantioselectivities. In addition, this approach is used to realize the first enantioselective construction of challenging tetrahydroindolocarbazole scaffolds, which are found to show promising anticancer activity. More importantly, theoretical calculations of the reaction pathways and activation mode offer an in-depth understanding of this class of indolylmethanols. This work not only settles the challenges in realizing catalytic asymmetric cycloadditions of indolyldimethanols but also provides a powerful strategy for the construction of enantioenriched indole-fused rings.
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Affiliation(s)
- Jia-Yi Zhang
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Jia-Yi Chen
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, 515063, Shantou, China
| | - Cong-Hui Gao
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Lei Yu
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Shao-Fei Ni
- Department of Chemistry, Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province, Shantou University, 515063, Shantou, China
| | - Wei Tan
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
| | - Feng Shi
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, China
- School of Petrochemical Engineering, Changzhou University, 213164, Changzhou, China
- School of Chemistry and Chemical Engineering, Henan Normal University, 453007, Xinxiang, China
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6
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Kim K, You E, Hong S. Nucleophilic C4-selective (hetero) arylation of pyridines for facile synthesis of heterobiaryls. Front Chem 2023; 11:1254632. [PMID: 37720719 PMCID: PMC10502421 DOI: 10.3389/fchem.2023.1254632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 08/17/2023] [Indexed: 09/19/2023] Open
Abstract
The synthesis of heterobiaryl compounds holds significant value in organic chemistry due to their extensive range of applications. Herein, we report a highly efficient strategy for conducting C4-selective (hetero) arylation of pyridines using N-aminopyridinium salts. The reaction proceeds readily at room temperature in the presence of a base, thus eliminating the requirement for catalysts or oxidants. This method allows for the installation of various electron-rich (hetero) aryl groups on pyridines, resulting in the streamlined synthesis of highly valuable C4-(hetero) aryl pyridine derivatives, which are otherwise challenging to acquire via conventional methods. This simple and straightforward method will facilitate access to a range of heterobiaryl compounds thereby promoting their application in various scientific disciplines.
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Affiliation(s)
- Kewon Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Euna You
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Sungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon, Republic of Korea
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7
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Xu L, Rong Y, Liao H, Pan M, Qian Y, Rong L, Zhang J. Construction of Spiro[benzo[ a]acridine-12,4'-imidazolidine]-2',5'-dione Derivatives via Ring-Opening and Recyclization of Isatins and C-OH Cleavage of 2-Naphthol. J Org Chem 2023. [PMID: 37154738 DOI: 10.1021/acs.joc.3c00304] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
An efficient three-component reaction to access spiro[benzo[a]acridine-12,4'-imidazolidine]-2',5'-dione derivatives has been developed through the ring-opening and recyclization process of isatins and dehydroxylation of 2-naphthol, which is different from their conventional reaction modes. Experimental observations suggest that p-toluenesulfonic acid is the key factor that promotes the success of this synthetic strategy. The research provided a novel approach for the construction of spiro compounds from isatins and 2-naphthol in organic synthesis.
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Affiliation(s)
- Linlin Xu
- Key Lab of Environment and Health, School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, P. R. China
| | - Yuchen Rong
- Taizhou Institute of Science & Technology, Nanjing University of Science and Technology, Taizhou 22539, Jiangsu, P. R. China
| | - Hailin Liao
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P. R. China
| | - Mei Pan
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P. R. China
| | - Yuliang Qian
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P. R. China
| | - Liangce Rong
- Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, P. R. China
| | - Jinpeng Zhang
- Key Lab of Environment and Health, School of Public Health, Xuzhou Medical University, Xuzhou 221004, Jiangsu, P. R. China
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8
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Hazra A, Kanji T, Banerjee P. Merging Two Strained Carbocycles: Lewis Acid Catalyzed Remote Site-Selective Friedel-Crafts Alkylation of in Situ Generated β-Naphthol. J Org Chem 2023; 88:960-971. [PMID: 36578165 DOI: 10.1021/acs.joc.2c02378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Lewis acid catalyzed tandem activation of the two smallest carbocycles, 3-ethoxy cyclobutanones, and donor-acceptor cyclopropanes has been demonstrated. The diphenyl-substituted 3-ethoxy cyclobutanone rearranges itself by intramolecular cyclization for the in situ generation of 1-phenyl 2-naphthol, which further undergoes remote site-selective Friedel-Crafts alkylation with donor-acceptor cyclopropane to synthesize a series of γ-naphthyl butyric acid derivatives. Further control experiments for mechanistic investigations and synthetic applications have also been carried out.
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Affiliation(s)
- Arijit Hazra
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Tanmay Kanji
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Prabal Banerjee
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
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9
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Liu J, Chen J, Liu T, Liu J, Zeng Y. Recent Advances in the Reactions of β-Naphthol at α-Position. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202207015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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10
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Safaei-Ghomi J, Mahmoodi Kharazm A, Mirheidari M. Preparation of 2-Amino-4-Phenyl-4a,5,6,7-Tetrahydronaphthalene-1,3,3(4H)-Tricarbonitriles Using Prepared CuI Nanoparticles via Green Method by Berberis integerrima (Barberry) Extract. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2112715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Javad Safaei-Ghomi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R. Iran
| | - Ali Mahmoodi Kharazm
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R. Iran
| | - Mahnaz Mirheidari
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R. Iran
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11
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Fawzy NM, Ahmed KM, Abo-Salem HM, Aly MS. Novel Furochromone Derivatives of Potential Anticancer Activity Targeting EGFR Tyrosine Kinase. Synthesis and Molecular Docking Study. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1068162022040082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Ghasemzadeh MA, Mirhosseini-Eshkevari B. Poly(acrylic acid)/Fe3O4 Supported on MIL-100(Cr) MOF as a Novel and Magnetic Nanocatalyst for the Synthesis of Pyrido[2,3-d]Pyrimidines. Heliyon 2022; 8:e10022. [PMID: 36042736 PMCID: PMC9420355 DOI: 10.1016/j.heliyon.2022.e10022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 05/27/2022] [Accepted: 07/18/2022] [Indexed: 11/02/2022] Open
Abstract
In the current work, a convenient and simple approach for preparing poly (acrylic acid)/Fe3O4 supported on MIL-100(Cr) for the synthesis of pyrido [2,3-d]pyrimidine derivatives via the three-component one-pot reaction of 1,3-indandione, 6-amino uracil, and aromatic aldehydes is reported. The effectiveness of this new magnetic nanocatalyst was proved. The results showed this nanocatalyst's moderate to high yield under reflux conditions. SEM, TEM, IR, EDX, XRD, BET, and TGA were used to characterize the structure of the synthesized nanocatalyst. This synthetic protocol offers various advantages, including cost-saving, excellent yields in short reaction times (67–98%), low catalyst loading, and catalyst reusability.
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13
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Raji Reddy C, Bhandari MC, Patil AD, Aila M, Donthiri RR. FeCl 3-mediated selenylative benzannulation of aryl alkynones to 3-selenyl β-naphthols. Org Biomol Chem 2022; 20:4765-4772. [PMID: 35616590 DOI: 10.1039/d2ob00321j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient selenylative cyclization of aryl-alkynones with diselenides in the presence of iron(III)chloride at room temperature to prepare 3-seleno-2-naphthols in good yields has been described. Furthermore, the resulting products were transformed into selenyl-naphthofuran and selenyl-1,2-naphthoquinone derivatives.
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Affiliation(s)
- Chada Raji Reddy
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Mayur C Bhandari
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Amol D Patil
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Mounika Aila
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, India
| | - Ramachandra Reddy Donthiri
- Department of Organic Synthesis & Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, India.
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14
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Multicomponent synthesis of a novel bicyclic pyran-2-one system. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02923-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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15
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Rai S, Bishnoi A, Devi P, Afza N. Computational and Experimental Investigations of 7-(4-nitrophenyl)benzo[6,7]chromeno[3,2-e]pyrido[1,2-a]pyrimidin-6(7h)-one. LETT ORG CHEM 2022. [DOI: 10.2174/1570178619666220113112355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Acstract:
In-silico studies are used for the prediction of the properties of several novel materials using computer simulation technique. The present study describes the complete description of the molecular vibrations and electronic feature of the title compound by this technique. 7-(4-nitrophenyl)benzo[6,7]chromeno[3,2-e]pyrido[1,2-a]pyrimidin-6(7H)-one was prepared by the multicomponent reaction of 2H-pyrido[1,2-a]pyrimidine-2,4(3H)-dione, 2-naphthol and p-nitrobenzaldehyde. The structure of the compound was confirmed by UV, IR, NMR (1H, 13C) and mass spectroscopic studies. The compound was further subjected to quantum chemical calculations at the level of Hartee-Fock (HF) method using Lan2DZ basis set to compute polarizability, hyperpolarizabilities, AIM approach, Natural bond orbital analysis, complete vibrational assignments, Mulliken charges, spectral analysis and HOMO-LUMO energies
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Affiliation(s)
- Sonam Rai
- Department of Chemistry, University of Lucknow, Lucknow 226007, India
| | - Abha Bishnoi
- Department of Chemistry, University of Lucknow, Lucknow 226007, India
| | - Poornima Devi
- Department of Chemistry, University of Lucknow, Lucknow 226007, India
| | - Nisha Afza
- Department of Chemistry, University of Lucknow, Lucknow 226007, India
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Ghasemi-Ghahsareh A, Safaei-Ghomi J, Oboudatian HS. Supported l-tryptophan on Fe 3O 4@SiO 2 as an efficient and magnetically separable catalyst for one-pot construction of spiro[indene-2,2'-naphthalene]-4'-carbonitrile derivatives. RSC Adv 2022; 12:1319-1330. [PMID: 35425168 PMCID: PMC8978968 DOI: 10.1039/d1ra07654j] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 12/17/2021] [Indexed: 12/13/2022] Open
Abstract
In this work, l-tryptophan functionalized silica-coated magnetic nanoparticles were readily prepared and evaluated as a recyclable magnetic nanocatalyst for the synthesis of spiro[indene-2,2'-naphthalene]-4'-carbonitrile derivatives through the one-pot four-component reaction of malononitrile, cyclohexanone, aromatic aldehydes, and 1,3-indandione. This novel magnetic nanocatalyst was confirmed to be effective and provide products in moderate to excellent yields under reflux conditions. The structure of obtained nanoparticles was characterized using FT-IR, XRD, VSM, EDX, elemental mapping, FE-SEM, and TGA. This synthetic protocol provides several benefits such as excellent yields in short reaction times (64-91%), saving costs, reusability of the catalyst using an external magnet (seven runs), and low catalyst loading.
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Affiliation(s)
- Aref Ghasemi-Ghahsareh
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan P. O. Box 87317-51167 Kashan I. R. Iran +98-31-55552935 +98-31-55912385
| | - Javad Safaei-Ghomi
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan P. O. Box 87317-51167 Kashan I. R. Iran +98-31-55552935 +98-31-55912385
| | - Hourieh Sadat Oboudatian
- Department of Organic Chemistry, Faculty of Chemistry, University of Kashan P. O. Box 87317-51167 Kashan I. R. Iran +98-31-55552935 +98-31-55912385
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Tabassum R, Ashfaq M, Oku H. Development of an efficient, one-pot, multicomponent protocol for synthesis of 8-hydroxy-4-phenyl-1,2-dihydroquinoline derivatives. J Heterocycl Chem 2021; 58:534-547. [PMID: 33362294 PMCID: PMC7753469 DOI: 10.1002/jhet.4193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/09/2020] [Accepted: 11/18/2020] [Indexed: 11/11/2022]
Abstract
A one-pot quick and efficient multicomponent reaction has been developed for the synthesis of a new series of functionalized 8-hydroxy-4-phenyl-1,2-dihydroquinoline derivatives using 30 mol% ammonium acetate in ethanol as solvent. This economical protocol run smoothly to give variety of quinoline derivatives in 55% to 98% yield from inexpensive reagents and catalyst in mild reaction conditions. Various spectroscopic techniques like FTIR, 1H NMR and 13C NMR, MALDI-TOF-MS, and EI-MS were used to study and confirm their structure.
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Affiliation(s)
- Rukhsana Tabassum
- Department of ChemistryThe Islamia University of BahawalpurBahawalpurPakistan
| | - Muhammad Ashfaq
- Department of ChemistryThe Islamia University of BahawalpurBahawalpurPakistan
| | - Hiroyuki Oku
- Division of Molecular ScienceGraduate School of Science & Engineering, Gunma UniversityGunmaJapan
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Zhang CB, Yuan JF, Cai YH, Xie YS, Li R, Fan MM, Li JJ. Recyclable Heterogeneous Nanocrystal Promoted Cascade Reaction in Water: An Access to Green Synthesis of Highly Functionalized 4H-Pyrans Containing Phosphonate Motif. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14446] [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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