51
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An Q, He C, Fan X, Hou C, Zhao J, Liu Y, Liu H, Ma J, Sun Z, Chu W. Synthesis of Benzazoles through Electrochemical Oxidative Cyclization Reactions. ChemElectroChem 2020. [DOI: 10.1002/celc.202000931] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Qi An
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Chaoyin He
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Xiaodong Fan
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Chuanfu Hou
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Jian Zhao
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Yue Liu
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Hao Liu
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Junjie Ma
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Zhizhong Sun
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
| | - Wenyi Chu
- School of Chemistry and Materials Science Heilongjiang University Harbin 150080 P. R. China
- Key Laboratory of Chemical Engineering Process and Technology for High-efficiency Conversion College of Heilongjiang Province Harbin 150080 P. R. China
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52
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Jamali MF, Vaishanv NK, Mohanan K. The Bestmann-Ohira Reagent and Related Diazo Compounds for the Synthesis of Azaheterocycles. CHEM REC 2020; 20:1394-1408. [PMID: 32986304 DOI: 10.1002/tcr.202000091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/03/2020] [Accepted: 09/03/2020] [Indexed: 12/14/2022]
Abstract
Azaheterocycles are one of the most prevalent classes of compounds present in numerous bioactive compounds, natural products, and agrochemicals, and undoubtedly, new methods to access them are always in high demand. Among the methods available, the 1,3-dipolar cycloaddition reactions involving diazo compounds are particularly attractive because of their ability to rapidly construct densely functionalized azaheterocycles in a regioselective manner. In this context, the Bestmann-Ohira reagent has become a well-known reagent for the 1,3-dipolar cycloaddition reactions to produce phosphonylated heterocycles, besides its widespread use as a homologating agent for the conversion of aldehydes to alkynes. This account details our efforts toward broadening the synthetic utility of the Bestmann-Ohira reagent and related compounds for the preparation of azaheterocycles such as pyrazoles, spirooxindoles, triazoles, triazolines, and spiropyrazolines, emphasizing on domino multicomponent reactions employing readily available feedstock reagents.
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Affiliation(s)
- Muhammad Fahad Jamali
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Narendra Kumar Vaishanv
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India
| | - Kishor Mohanan
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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53
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Quiroga D, Becerra LD, Coy-Barrera E. Solvent Free Three-Component Synthesis of 2,4,5-trisubstituted-1 H-pyrrol-3-ol-type Compounds from L-tryptophan: DFT-B3LYP Calculations for the Reaction Mechanism and 3 H-pyrrol-3-one↔1 H-pyrrol-3-ol Tautomeric Equilibrium. Molecules 2020; 25:molecules25194402. [PMID: 32992704 PMCID: PMC7582317 DOI: 10.3390/molecules25194402] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/19/2020] [Accepted: 09/24/2020] [Indexed: 11/16/2022] Open
Abstract
In this paper, we describe the solvent-free three-component synthesis of 2,4,5-trisubstituted-1H-pyrrol-3-ol-type compounds from L-tryptophan. The first step of the synthetic methodology involved the esterification of L-tryptophan in excellent yields (93-98%). Equimolar mixtures of alkyl 2-aminoesters, 1,3-dicarbonyl compounds, and potassium hydroxide (0.1 eq.) were heated under solvent-free conditions. The title compounds were obtained in moderate to good yields (45%-81%). Density functional theory using "Becke, 3-parameter, Lee-Yang-Parr" correlational functional (DFT-B3LYP) calculations were performed to understand the molecular stability of the synthesized compounds and the tautomeric equilibrium from 3H-pyrrol-3-one type intermediates to 1H-pyrrol-3-ol type aromatized rings.
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54
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Frankhouser AD, Kanan MW. Phase Behavior That Enables Solvent-Free Carbonate-Promoted Furoate Carboxylation. J Phys Chem Lett 2020; 11:7544-7551. [PMID: 32812764 DOI: 10.1021/acs.jpclett.0c02210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Solvent-free chemistry has been used to streamline synthesis, reduce waste, and access novel reactivity, but the physical nature of the reaction medium in the absence of solvent is often poorly understood. Here we reveal the phase behavior that enables the solvent-free carboxylation reaction in which carbonate, furan-2-carboxylate (furoate), and CO2 react to form furan-2,5-dicarboxylate (FDCA2-). This transformation has no solution-phase analogue and can be applied to convert lignocellulose into performance-advantaged plastics. Using operando powder X-ray diffraction and thermal analysis to elucidate the temperature- and conversion-dependent phase composition, we find that the reaction medium is a heterogeneous mixture of a ternary eutectic molten phase, solid Cs2CO3, and solid Cs2FDCA. During the reaction, the amounts of molten phase and solid Cs2CO3 diminish as solid Cs2FDCA accumulates. These insights are critical for increasing the scale of furoate carboxylation and provide a framework for guiding the development of other solvent-free transformations.
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Affiliation(s)
- Amy D Frankhouser
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Matthew W Kanan
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
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55
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Li T, Rong W, Zhang T, Li J. Mechanism and Origins of Product Selectivity of Au‐Catalyzed Coupling Benzisoxazoles with Ynamides: A Computational Study. ChemCatChem 2020. [DOI: 10.1002/cctc.202000725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ting Li
- Department of Chemistry College of Chemistry and Materials Science Jinan University Guangzhou Guangdong 510632 P. R. China
| | - Wei Rong
- Department of Chemistry College of Chemistry and Materials Science Jinan University Guangzhou Guangdong 510632 P. R. China
| | - Tian Zhang
- Department of Chemistry College of Chemistry and Materials Science Jinan University Guangzhou Guangdong 510632 P. R. China
| | - Juan Li
- Department of Chemistry College of Chemistry and Materials Science Jinan University Guangzhou Guangdong 510632 P. R. China
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56
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Bakthadoss M, Reddy TT, Sharada DS. Ruthenium-catalyzed, site-selective C-H activation: access to C5-substituted azaflavanone. RSC Adv 2020; 10:31570-31574. [PMID: 35520642 PMCID: PMC9056431 DOI: 10.1039/d0ra06580c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 08/17/2020] [Indexed: 11/21/2022] Open
Abstract
A site-selective ruthenium-catalyzed keto group assisted C–H bond activation of 2-aryl tetrahydroquinoline (azaflavanone) derivatives has been achieved with a variety of alkenes for the first time. A wide range of substrates was utilized for the synthesis of a wide variety of alkenylated azaflavanones. This simple and efficient protocol provides the C5-substituted azaflavanone derivatives in high yields with a broad range of functional group tolerance. Further, the C5-alkenylated products were converted into substituted 2-aryl quinoline derivatives in good yields. A site-selective ruthenium-catalyzed keto group assisted C–H bond activation of 2-aryl tetrahydroquinoline (azaflavanone) derivatives has been achieved with a variety of alkenes for the first time.![]()
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Affiliation(s)
| | | | - Duddu S Sharada
- Department of Chemistry, Indian Institute of Technology Hyderabad Telangana-502285 India
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57
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Jiao Y, Chen A, Yu B, Huang H. Brønsted Acid Catalyzed Cyclization of Aminodiazoesters with Aldehydes to 3-Carboxylate- N-Heterocycles. Org Lett 2020; 22:6031-6034. [PMID: 32790426 DOI: 10.1021/acs.orglett.0c02125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Brønsted acid catalyzed cyclization of aminodiazoesters with aldehydes is described. This reaction features broad substrate generality and functional group compatibility, affording a wide range of 5-7-membered 3-carboxylate-N-heterocycles containing different functional groups. The title products are able to be further elaborated through simple functional group transformations to produce synthetically useful N-heterocycles.
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Affiliation(s)
- Yang Jiao
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Anrong Chen
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Bangkui Yu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Hanmin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China.,Center for Excellence in Molecular Synthesis of CAS, Hefei, 230026, P. R. China
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58
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Cao Z, Zhu Y, Li X, He Y, Zhang J, Xu L, Wei Y. tert-Butyl Bromide-Promoted Intramolecular Cyclization of 2-Arylamino Phenyl Ketones and Its Combination with Cu-Catalyzed C-N Coupling: Synthesis of Acridines at Room Temperature. J Org Chem 2020; 85:10167-10174. [PMID: 32568540 DOI: 10.1021/acs.joc.0c00137] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, a facile intramolecular cyclization of 2-arylamino phenyl ketones is established to supersede the traditional high-temperature, strongly acidic conditions and achieve 9-substituted acridines, by virtue of the combination of 2,2,2-trifluoroethanol and tert-butyl bromide. This protocol can be merged well with the preceding Cu-catalyzed intermolecular Chan-Evans-Lam cross-coupling reactions, therefore enabling pot-economic modular synthesis of 9-substituted acridines from readily available 2-amino phenyl ketones and aryl boronic acids at room temperature.
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Affiliation(s)
- Zifeng Cao
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Yuan Zhu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Xiaoman Li
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Yang He
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Jinli Zhang
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Liang Xu
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
| | - Yu Wei
- School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xin-jiang Bingtuan, Shihezi University, Shihezi 832003, China
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59
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Ultrasonic promoted synthesis of 1,6-naphthyridine derivatives catalyzed by solid acid in water. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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60
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Shi W, Sun G, Zou G. Ball-milling enables highly selective solvent-free N-tert-butoxycarbonylation for activation of amides. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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61
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Iwai K, Ono M, Nanjo Y, Ema T. Minimization of Amounts of Catalyst and Solvent in NHC-Catalyzed Benzoin Reactions of Solid Aldehydes: Mechanistic Consideration of Solid-to-Solid Conversion and Total Synthesis of Isodarparvinol B. ACS OMEGA 2020; 5:10207-10216. [PMID: 32391509 PMCID: PMC7203951 DOI: 10.1021/acsomega.0c01141] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 04/08/2020] [Indexed: 05/03/2023]
Abstract
Attempts were made to minimize the amounts of catalyst and solvent in the NHC-catalyzed benzoin reactions of solid aldehydes. In some case, solid-to-solid conversions proceeded in the solvent-free NHC-catalyzed benzoin reactions. Even if a mixture of the substrate, N-heterocyclic carbene (NHC) precursor, and inorganic base was initially a powdery solid, the reaction did proceed at reaction temperature lower than the melting points of each compound. The solid mixture partially melted or became a slurry or suspension in the meantime. We call this solid/liquid mixture a semisolid state. The reaction giving an optically active product was faster than that giving a racemic mixture of the same product. Melting-point depression was observed for a series of mixtures of the substrate and product in different substrate/product ratios. Solvent-free solid-to-solid conversions were accelerated by the formation of a semisolid state resulting from the melting-point depression of the solid substrate accompanied by the product formation. In the case of solid substrates with high melting points, melting-point depression was useless, and the addition of a small amount of solvent was needed. The first total synthesis of isodarparvinol B was achieved via the NHC-catalyzed intramolecular benzoin reaction using a small amount of solvent as an additive.
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62
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Application of nitrogen-rich porous organic polymer for the solid-phase synthesis of 2-amino-4H-benzo[b]pyran scaffolds using ball milling process. Mol Divers 2020; 25:323-332. [PMID: 32361887 DOI: 10.1007/s11030-020-10092-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 04/18/2020] [Indexed: 10/24/2022]
Abstract
This paper presents the efficient synthesis of 2-amino-4H-benzo[b]pyrans using mesoporous poly-melamine-formaldehyde as a polymeric heterogeneous catalyst. According to the principals of green chemistry, the reaction was performed by the planetary ball milling process at ambient and neat conditions. The heterogeneous catalyst could be reused up to five runs with no reducing of catalytic efficiency. A variety of substituted 2-amino-4H-benzo[b]pyrans were obtained in good to excellent yields under eco-friendly conditions. Other advantages of the current methodology include short reaction time, wide substrate-scope, and use of a metal-free polymeric catalyst. Also, the current method avoids the use of hazardous reagents and solvents, tedious workup and multi-step purification. This work revealed that porous organic polymers containing Lewis base sites having acceptor-donner hydrogen bonding functional groups, and high porosity could play a vital role in the promotion of the one-pot multicomponent reactions in the solid-phase synthesis.
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63
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Wang Y, Tang G, Wu Y. A Set of phenyl sulfonate metal coordination complexes triggered Biginelli reaction for the high efficient synthesis of 3,4‐dihydropyrimidin‐2(1
H
)‐ones under solvent‐free conditions. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yong‐Tao Wang
- School of Chemistry and Pharmaceutical EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Gui‐Mei Tang
- School of Chemistry and Pharmaceutical EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Yu‐Song Wu
- School of Chemistry and Pharmaceutical EngineeringQilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
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64
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Kripalaya Ratheesh A, Karnam Jayarampillai RP. Acid‐Promoted Hetero Annulation: An Expeditious Route to Construct Functionalized Pyrido‐ and Pyrimido[5′,4′:5,6]pyrido‐ Fused [
a
]Carbazoles. ChemistrySelect 2020. [DOI: 10.1002/slct.202000281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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65
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Du R, Han L, Zhou Z, Borovkov V. Efficient Synthesis of Novel Quinolinone Derivatives via Catalyst-free Multicomponent Reaction. LETT ORG CHEM 2020. [DOI: 10.2174/1570178616666190828092728] [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
The synthesis of 3-(aryl(piperidin-1-yl)methyl)-4-hydroxyquinolin-2(1H)-one derivatives
via catalyst-free multicomponent reaction is described. The reaction of 4-hydroxyquinolin-2(1H)-one,
piperidine, and 4-chlorobenzaldehyde was carried out in different solvents and under solvent-free conditions
at room temperature. The best solvent in terms of the yield and reaction time was found to be
dichloromethane. Most substituted benzaldehydes reacted with 4-hydroxyquinolin-2(1H)-one and
piperidine to afford corresponding products in good-to-excellent yields. Aldehydes with electronwithdrawing
groups were more reactive to exhibit higher reaction rates. However, 2-substituted benzaldehydes
did not react with 4-hydroxyquinolin-2(1H)-one and piperidine under the reaction condition.
Aldehydes bearing a hydroxyl group failed to produce the corresponding products.
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Affiliation(s)
- Rui Du
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Liangliang Han
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Zhongqiang Zhou
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Victor Borovkov
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
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66
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Khaligh NG, Mihankhah T. Green and Solid-Phase Synthesis of New Dihydro-[1,2,4]Triazolo[1,5- a]Pyrimidine Scaffolds by Using Poly-Melamine-Formaldehyde as a Nitrogen-Rich Porous Organocatalyst. Polycycl Aromat Compd 2020. [DOI: 10.1080/10406638.2020.1756357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Nader Ghaffari Khaligh
- Nanotechnology and Catalysis Research Center, Institute of Postgraduate Studies, University of Malaya, Kuala Lumpur, Malaysia
| | - Taraneh Mihankhah
- Environmental Research Laboratory, Department of Water and Environmental Engineering, School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran
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67
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Tabasso S, Calcio Gaudino E, Acciardo E, Manzoli M, Bonelli B, Cravotto G. Microwave-Assisted Protocol for Green Functionalization of Thiophenes With a Pd/β-Cyclodextrin Cross-Linked Nanocatalyst. Front Chem 2020; 8:253. [PMID: 32363176 PMCID: PMC7180232 DOI: 10.3389/fchem.2020.00253] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 03/17/2020] [Indexed: 11/13/2022] Open
Abstract
Microwaves (MW) are often the most efficient, in terms of heat exchange and conversion rate, of all the energy sources used to promote chemical reactions thanks to fast volumetric dielectric heating, and metal-catalyzed synthetic reactions under heterogeneous conditions are an eloquent example. We herein report a MW-assisted green protocol for the C-H arylation of thiophenes with substituted aryl halides. This sustainable protocol carried out in γ-valerolactone (GVL) is catalyzed by Pd nanoparticles embedded in cross-linked β-cyclodextrin. In view of the excellent results achieved with activated substrates, the one-pot synthesis of a 4(3H)-quinazolinone derivative has been accomplished. A pressure-resistant MW reactor, equipped with multiple gas inlets, was used for sequential (i) C-H arylation, (ii) reduction, and (iii) carbonylation in the presence of the same catalyst, but under different gas atmospheres. The robust heterogeneous Pd catalyst showed limited metal leaching in GVL, making this an efficient MW-assisted process with high atom economy.
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Affiliation(s)
- Silvia Tabasso
- Dipartimento di Chimica, University of Turin, Turin, Italy
| | - Emanuela Calcio Gaudino
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin, Turin, Italy
| | - Elisa Acciardo
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin, Turin, Italy
| | - Maela Manzoli
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin, Turin, Italy
| | - Barbara Bonelli
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco and NIS, Centre for Nanostructured Interfaces and Surfaces, University of Turin, Turin, Italy
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68
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Peng X, Li L, Ren Y, Xue H, Liu J, Wen S, Chen J. Synthesis of
N
‐Carbonyl Acridanes as Highly Potent Inhibitors of Tubulin Polymerization
via
One‐Pot Copper‐Catalyzed Dual Arylation of Nitriles with Cyclic Diphenyl Iodoniums. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xiaopeng Peng
- School of Pharmaceutical SciencesSouthern Medical University Guangzhou 510060 People's Republic of China
| | - Ling Li
- School of Pharmaceutical SciencesSouthern Medical University Guangzhou 510060 People's Republic of China
| | - Yichang Ren
- School of Pharmaceutical SciencesSouthern Medical University Guangzhou 510060 People's Republic of China
| | - Huanxin Xue
- School of Pharmaceutical SciencesSouthern Medical University Guangzhou 510060 People's Republic of China
| | - Jin Liu
- School of Pharmaceutical SciencesSouthern Medical University Guangzhou 510060 People's Republic of China
| | - Shijun Wen
- Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative innovation Center for Cancer MedicineSun Yat-sen University Guangzhou 510060 People's Republic of China
| | - Jianjun Chen
- School of Pharmaceutical SciencesSouthern Medical University Guangzhou 510060 People's Republic of China
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69
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70
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Ali El-Remaily MAEAA, Soliman AMM, Elhady OM. Green Method for the Synthetic Ugi Reaction by Twin Screw Extrusion without a Solvent and Catalyst. ACS OMEGA 2020; 5:6194-6198. [PMID: 32226904 PMCID: PMC7098038 DOI: 10.1021/acsomega.0c00369] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Accepted: 03/03/2020] [Indexed: 05/04/2023]
Abstract
This study describes the solvent and catalyst-free Ugi reaction by way of twin screw extrusion (TSE). Multicomponent chemical synthesis can be converted into a single process without repeated use of solvents through TSE. High synthetic yields are achieved in short reaction times and produced in solvent-free conditions, which lead to a more environmentally friendly process.
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71
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Babaei B, Bezaatpour A, Basharnavaz H. Robust and fast oxidation of sulfides by immobilized Mo(VI) complex on magnetic nanoparticles in solvent-free condition. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114382] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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72
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Khoshdoun M, Taheri S, Daneshgar P, Jamshidi HR, Ziyaei Halimehjani A. Synthesis of 5‐amino‐1,3,4‐thiadiazoles containing dithiocarbamate groups. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Maryam Khoshdoun
- Department of Organic Chemistry and Natural ProductsChemistry and Chemical Engineering Research Center of Iran Tehran Iran
| | - Salman Taheri
- Department of Organic Chemistry and Natural ProductsChemistry and Chemical Engineering Research Center of Iran Tehran Iran
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73
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Khodamorady M, Sohrabnezhad S, Bahrami K. Efficient one-pot synthetic methods for the preparation of 3,4-dihydropyrimidinones and 1,4-dihydropyridine derivatives using BNPs@SiO2(CH2)3NHSO3H as a ligand and metal free acidic heterogeneous nano-catalyst. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114340] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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74
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Affiliation(s)
- Mosstafa Kazemi
- Young Researchers and Elite Club, Ilam Branch, Islamic Azad University, Ilam, Iran
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75
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Solvent-free synthesis of isoindolo[2,1-c]pyrazolo[1,5-a]quinazoline and pyrazolo[5',1':2,3]pyrimido[6,1-a]isoindol derivatives through a one-pot three-component reaction. Mol Divers 2020; 25:1123-1130. [PMID: 32076910 DOI: 10.1007/s11030-020-10052-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 02/07/2020] [Indexed: 12/24/2022]
Abstract
Some 5-substituted 3-aminopyrazoles were used for the synthesis of isoindolo[2,1-c]pyrazolo[1,5-a]quinazoline and pyrazolo[5',1':2,3]pyrimido[6,1-a]isoindol derivatives via a mild and efficient one-pot three-component reaction with 2-formylbenzoic acid and different CH-acids under solvent-free condition.
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76
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77
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Jahanshad M, Manafi M, Mousavi-Safavi SM, Homami SS, Ghazanfarpour-Darjani M. A copper-catalyzed reaction between terminal alkynes, acetylenic esters, and oxiranes: efficient synthesis of 2H-pyran-4-carboxylate. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-019-02526-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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78
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Mathur P, Misra S. Metal-carbonyl promoted multicomponent coupling of alkynes for the synthesis of heterocyclic compounds. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2020. [DOI: 10.1016/bs.adomc.2019.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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79
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Gadde S, Leung YC, Bhadbade M, Cheung BB, Black DS, Kumar N. Synthesis of a Novel Library of 1-Substituted Pyrido[1,2-a]benzimidazoles. Aust J Chem 2020. [DOI: 10.1071/ch20173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The reactivity and synthesis of new analogues of pyrido[1,2-a]benzimidazoles have been explored. Twenty-three derivatives bearing phenoxy, thiophenoxy, aniline, and aryl groups at the 1-position were successfully synthesised in 25–91% yield, via nucleophilic substitution, Buchwald–Hartwig amination, and Suzuki coupling type processes. Solvent free synthetic protocols were employed to achieve the nucleophilic substitution of anilines with electron donating groups or moderately electron withdrawing groups on a sterically demanding intermediate (7a). An unusual polycyclic heterocycle was identified as a side-product during this work: a dimeric bis(pyrido[1,2-a]benzimidazole).
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80
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Bhaskaruni SV, Maddila S, Gangu KK, Jonnalagadda SB. A review on multi-component green synthesis of N-containing heterocycles using mixed oxides as heterogeneous catalysts. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2017.09.016] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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81
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Kazemi M, Mohammadi M. Magnetically Recoverable Catalysts: Catalysis in Synthesis of Polyhydroquinolines. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5400] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mosstafa Kazemi
- Young Researchers and Elite Club, Ilam BranchIslamic Azad University Ilam Iran
| | - Masoud Mohammadi
- Department of Chemistry, Faculty of ScienceIlam University P.O. Box 69315516 Ilam Iran
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82
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Singh P, Nath M. A Concise Account on Eco-friendly Synthetic Strategies for Pyrazole Heterocycles. CURRENT GREEN CHEMISTRY 2019. [DOI: 10.2174/2213346106666191026094131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Five membered nitrogen heterocycles are historically known to exhibit diverse therapeutic
properties. In particular, the pyrazole analogues have shown a wide range of pharmacological profiles
and a number of drugs containing this scaffold approved for the treatment of various ailments and
disorders. Hence, a lot of efforts have been made to develop efficient synthetic strategies for the
preparation of a variety of pyrazoles in the past several decades. However, this review describes the
environmentally benign protocols for the synthesis of substituted and fused pyrazole molecules.
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Affiliation(s)
- Pargat Singh
- Department of Chemistry, Faculty of Science, University of Delhi, Delhi 110 007, India
| | - Mahendra Nath
- Department of Chemistry, Faculty of Science, University of Delhi, Delhi 110 007, India
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83
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Gong Y, Xu SW, Liu XW, Li Z, Liu XL, Yao Z, Zhou Y. Thermal-mediated [1,3]-hydrogen transfer as the key step: access to oxindole-chromone hybrid collection with structural diversity. Org Biomol Chem 2019; 17:9567-9572. [PMID: 31686070 DOI: 10.1039/c9ob02193k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inspired by the chemistry and biology of chromone and oxindole derivatives, herein we report the first example of thermal-mediated [1,3]-hydrogen transfer as the key step for the efficient synthesis of oxindole-chromone hybrid collections 2, which avoids additional catalyst and solvent conditions. All the oxindole-chromones 2 are smoothly obtained in >99% yields in all cases, avoiding column chromatography purification. In particular, the products 2 can act as potential synthons for further elaboration in structural diversity, which might be valuable in organic and medicinal chemistry.
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Affiliation(s)
- Yi Gong
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China. and Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Sheng-Wen Xu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong-Wei Liu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China.
| | - Zheng Li
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China.
| | - Xiong-Li Liu
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China. and Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Zhen Yao
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China. and Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine, Guizhou University, Guiyang, Guizhou 550025, P. R. China
| | - Ying Zhou
- College of Pharmaceutical Sciences, Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550025, P. R. China.
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84
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Rutile phase nanoTiO2 as an effective heterogeneous catalyst for condensation reaction of isatin derivatives with 1,2-diaminobenzene under solvent free conditions: A greener “NOSE” approach. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2014.11.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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85
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Supramolecular self-assembly and thermodynamic properties of 5-aryl-1-(1,1-dimethylethyl)-1H-pyrazoles in the crystalline state. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.06.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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86
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Kim SH, Na S, Ha H, Lee WK. An Efficient Synthesis of 1,3‐Disubstituted Pyrazoles from 2‐Acylaziridines. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Soo Hyun Kim
- Department of ChemistrySogang University Seoul 121-742 Korea
| | - Sang‐Yun Na
- Department of ChemistryHankuk University of Foreign Studies Yongin 17035 Korea
| | - Hyun‐Joon Ha
- Department of ChemistryHankuk University of Foreign Studies Yongin 17035 Korea
| | - Won Koo Lee
- Department of ChemistrySogang University Seoul 121-742 Korea
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87
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Singh R, Singh A, Bhardwaj D. Selective and Solvent‐Free Synthesis of Isoxazole‐Containing Spiro‐Thiazolidinones Using TiO
2
‐SO
3
H as Solid Catalyst. ChemistrySelect 2019. [DOI: 10.1002/slct.201901942] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ruby Singh
- Department of ChemistrySchool of Basic SciencesJaipur National University, Jaipur, Rajasthan India
| | - Aakash Singh
- Department of ChemistrySchool of Basic SciencesJaipur National University, Jaipur, Rajasthan India
| | - Diksha Bhardwaj
- Department of ChemistrySchool of Basic SciencesJaipur National University, Jaipur, Rajasthan India
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88
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Wen X, Chen W, Chen J. Nickel‐catalyzed aminocarbonylation of aryl halides with carbamoylsilanes: efficient synthesis of secondary (primary) aromatic amides. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5174] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xueping Wen
- College of Chemistry and Materials ScienceShanxi Normal University Lin fen 041004 P. R. China
| | - Wenwen Chen
- College of Chemistry and Materials ScienceShanxi Normal University Lin fen 041004 P. R. China
| | - Jianxin Chen
- College of Chemistry and Materials ScienceShanxi Normal University Lin fen 041004 P. R. China
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89
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Lei L. Pd–Schiff base complex supported on Fe
3
O
4
magnetic nanoparticles: A new and highly efficient reusable catalyst for C–C bond formation in water. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5158] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Lei Lei
- School of Civil EngineeringXuzhou University of Technology Xuzhou 221000 China
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90
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Chen C, Cui S. Iterative Assembly of Nitrile Oxides and Ynamides: Synthesis of Isoxazoles and Pyrroles. J Org Chem 2019; 84:12157-12164. [DOI: 10.1021/acs.joc.9b01430] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Changwei Chen
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Sunliang Cui
- Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
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91
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Bakthadoss M, Vinayagam V, Agarwal V, Sharada DS. Three Component, One‐Pot Synthesis of Multifunctional Quinolinopyranpyrazoles
via
Catalyst‐Free Multicomponent Reaction. ChemistrySelect 2019. [DOI: 10.1002/slct.201901806] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | - Varathan Vinayagam
- Department of Organic ChemistryUniversity of MadrasGuindy Campus Chennai 600025, Tamilnadu India
| | - Vishal Agarwal
- Department of ChemistryPondicherry University Pondicherry – 605014 India
| | - Duddu S. Sharada
- Department of ChemistryIndian Institute of Technology Hyderabad Kandi- 502285, Sangareddy, Telangana India
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92
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Microwave-assisted ruthenium catalysed high-pressure synthesis of N-heterocyclic compounds. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02440-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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93
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Álvarez D, Castro‐López E, Fernández‐Pulido Y, Menéndez MI, López R. [Cp
2
Mo(OH)(OH
2
)]
+
‐Catalyzed Hydrolysis of Mono‐ and Difunctional Ethers: Theoretical Understanding of Their Divergent Reactivity. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Daniel Álvarez
- Departamento de Química Física y Analítica Universidad de Oviedo C/ Julián Clavería 8 33006 Oviedo Asturias Spain
| | - Elena Castro‐López
- Departamento de Química Física y Analítica Universidad de Oviedo C/ Julián Clavería 8 33006 Oviedo Asturias Spain
| | - Yoana Fernández‐Pulido
- Departamento de Ingeniería Eléctrica Universidad de Oviedo Campus de Gijón 33203 Gijón Asturias Spain
| | - M. Isabel Menéndez
- Departamento de Química Física y Analítica Universidad de Oviedo C/ Julián Clavería 8 33006 Oviedo Asturias Spain
| | - Ramón López
- Departamento de Química Física y Analítica Universidad de Oviedo C/ Julián Clavería 8 33006 Oviedo Asturias Spain
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94
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Fakhimi P, Bezaatpour A, Amiri M, Szunerits S, Boukherroub R, Eskandari H. Manganese Ferrite Nanoparticles Modified by Mo(VI) Complex: Highly Efficient Catalyst for Sulfides and Olefins Oxidation Under Solvent‐less Condition. ChemistrySelect 2019. [DOI: 10.1002/slct.201901549] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Parisa Fakhimi
- Department of Chemistry, Faculty of Basic ScienceUniversity of Mohaghegh Ardabili 179 Ardabil Iran
| | - Abolfazl Bezaatpour
- Department of Chemistry, Faculty of Basic ScienceUniversity of Mohaghegh Ardabili 179 Ardabil Iran
| | - Mandana Amiri
- Department of Chemistry, Faculty of Basic ScienceUniversity of Mohaghegh Ardabili 179 Ardabil Iran
| | - Sabine Szunerits
- Univ. Lille, CNRSCentrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN, F- 59000 Lille France
| | - Rabah Boukherroub
- Univ. Lille, CNRSCentrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN, F- 59000 Lille France
| | - Habibollah Eskandari
- Department of Chemistry, Faculty of Basic ScienceUniversity of Mohaghegh Ardabili 179 Ardabil Iran
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95
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Elinson MN, Vereshchagin AN, Anisina YE, Krymov SK, Fakhrutdinov AN, Goloveshkin AS, Egorov MP. Pot, atom and step economic (PASE) assembly of salicylaldehydes, malononitrile dimer and 4-hydroxypyridine-2(1H)-ones into medicinally relevant 5H-chromeno[2,3-b]pyridine scaffold. Mol Divers 2019; 24:617-626. [DOI: 10.1007/s11030-019-09968-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/01/2019] [Indexed: 12/19/2022]
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96
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Pentsak EO, Ananikov VP. Pseudo-Solid-State Suzuki-Miyaura Reaction and the Role of Water Formed by Dehydration of Arylboronic Acids. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900410] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Evgeniy O. Pentsak
- Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russia
| | - Valentine P. Ananikov
- Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky Prospekt 47 Moscow 119991 Russia
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97
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Oudi M, Sanchooli Tazeh K, Hazeri N, Fatahpour M, Ahmadi R. A convenient route toward one‐pot multicomponent synthesis of spirochromenes and pyranopyrazoles accelerated via quinolinic acid. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201800470] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Maryam Oudi
- Department of Chemistry, Faculty of ScienceUniversity of Sistan and Baluchestan Zahedan Iran
| | - Kazem Sanchooli Tazeh
- Department of Chemistry, Faculty of ScienceUniversity of Sistan and Baluchestan Zahedan Iran
| | - Nourallah Hazeri
- Department of Chemistry, Faculty of ScienceUniversity of Sistan and Baluchestan Zahedan Iran
| | - Maryam Fatahpour
- Department of Chemistry, Faculty of ScienceUniversity of Sistan and Baluchestan Zahedan Iran
| | - Raheleh Ahmadi
- Department of Chemistry, Faculty of ScienceUniversity of Sistan and Baluchestan Zahedan Iran
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98
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Han L, Zhou Z. An efficient and green protocol for synthesis of novel [1,3]oxazino[5,6- c]quinolin-5-one derivatives using [Et 3NH]HSO 4 as a reusable catalyst. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1615096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Liangliang Han
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, P. R. China
| | - Zhongqiang Zhou
- College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, P. R. China
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99
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Yadav VB, Yadav N, Rai P, Ansari MD, Kumar A, Verma A, Siddiqui IR. Meglumine Promoted Strategy: Environmentally Benign Protocol towards the Synthesis of Polysubstituted 2‐Aminopyrroles in Aqueous Condition. ChemistrySelect 2019. [DOI: 10.1002/slct.201900490] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Vijay B. Yadav
- Laboratory of Green SynthesisDepartment of ChemistryUniversity of Allahabad, Allahabad 211002 India
| | - Neetu Yadav
- Laboratory of Green SynthesisDepartment of ChemistryUniversity of Allahabad, Allahabad 211002 India
| | - Pragati Rai
- Laboratory of Green SynthesisDepartment of ChemistryUniversity of Allahabad, Allahabad 211002 India
| | - Mohd Danish Ansari
- Laboratory of Green SynthesisDepartment of ChemistryUniversity of Allahabad, Allahabad 211002 India
| | - Akhilesh Kumar
- Laboratory of Green SynthesisDepartment of ChemistryUniversity of Allahabad, Allahabad 211002 India
| | - Ankit Verma
- Laboratory of Green SynthesisDepartment of ChemistryUniversity of Allahabad, Allahabad 211002 India
| | - I. R. Siddiqui
- Laboratory of Green SynthesisDepartment of ChemistryUniversity of Allahabad, Allahabad 211002 India
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100
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Cheng C, Zhao M, Lai M, Zhai K, Shi B, Wang S, Luo R, Zhang L, Wu Z. Synthesis of Aza-Heteroaromatic Dithiocarbamates via Cross-Coupling Reactions of Aza-Heteroaromatic Bromides with Tetraalkylthiuram Disulfides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900475] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chuance Cheng
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province; College of Tobacco Science; Henan Agricultural University; 95, Wenhua Road 450002 Zhengzhou P. R. China
| | - Mingqin Zhao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province; College of Tobacco Science; Henan Agricultural University; 95, Wenhua Road 450002 Zhengzhou P. R. China
| | - Miao Lai
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province; College of Tobacco Science; Henan Agricultural University; 95, Wenhua Road 450002 Zhengzhou P. R. China
| | - Ke Zhai
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province; College of Tobacco Science; Henan Agricultural University; 95, Wenhua Road 450002 Zhengzhou P. R. China
| | - Bo Shi
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province; College of Tobacco Science; Henan Agricultural University; 95, Wenhua Road 450002 Zhengzhou P. R. China
| | - Shuai Wang
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province; College of Tobacco Science; Henan Agricultural University; 95, Wenhua Road 450002 Zhengzhou P. R. China
| | - Rui Luo
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province; College of Tobacco Science; Henan Agricultural University; 95, Wenhua Road 450002 Zhengzhou P. R. China
| | - Linbao Zhang
- State Key Laboratory Base of Eco-Chemical Engineering; College of Chemistry and Molecular Engineering; Qingdao University of Science & Technology; 53, Zhengzhou Road 266042 Qingdao P. R. China
| | - Zhiyong Wu
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province; College of Tobacco Science; Henan Agricultural University; 95, Wenhua Road 450002 Zhengzhou P. R. China
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