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Ali R, Hasan A. The Criss‐Cross Cycloaddition: A Simple Access to Valuable Heterocycles and Polymers. ChemistrySelect 2022. [DOI: 10.1002/slct.202203610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Rashid Ali
- Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla New Delhi 110025 India
| | - Ahmad Hasan
- Department of Chemistry, Jamia Millia Islamia, Jamia Nagar, Okhla New Delhi 110025 India
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2
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Choline Chloride-Based DES as Solvents/Catalysts/Chemical Donors in Pharmaceutical Synthesis. Molecules 2021; 26:molecules26206286. [PMID: 34684867 PMCID: PMC8540169 DOI: 10.3390/molecules26206286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/13/2021] [Accepted: 10/15/2021] [Indexed: 12/30/2022] Open
Abstract
DES are mixtures of two or more compounds, able to form liquids upon mixing, with lower freezing points when compared to the individual constituents (eutectic mixtures). This attitude is due to the specific hydrogen-bond interactions network between the components of the mixture. A notable characteristic of DES is the possibility to develop tailor-made mixtures by changing the components ratios or a limited water dilution, for special applications, making them attractive for pharmaceutical purposes. In this review, we focused our attention on application of ChCl-based DES in the synthesis of pharmaceutical compounds. In this context, these eutectic mixtures can be used as solvents, solvents/catalysts, or as chemical donors and we explored some representative examples in recent literature of such applications.
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Horsten T, Dehaen W. 4,5,6,7-Tetrahydroindol-4-Ones as a Valuable Starting Point for the Synthesis of Polyheterocyclic Structures. Molecules 2021; 26:4596. [PMID: 34361747 PMCID: PMC8348459 DOI: 10.3390/molecules26154596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 11/17/2022] Open
Abstract
This review focuses on the synthesis of polyheterocyclic structures with a variety of medicinal and optoelectronic applications, starting from readily available 4,5,6,7-tetrahydroindol-4-one analogs. First, routes toward the 4,5,6,7-tetrahydroindol-4-one starting materials are summarized, followed by synthetic pathways towards polyheterocyclic structures which are categorized based on the size and attachment point of the newly formed (hetero)cyclic ring.
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Affiliation(s)
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium;
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Pandey AM, Digrawal NK, Mohanta N, Jamdade AB, Chaudhari MB, Bisht GS, Gnanaprakasam B. Catalytic Acceptorless Dehydrogenation of Amino Alcohols and 2-Hydroxybenzyl Alcohols for Annulation Reaction under Neutral Conditions. J Org Chem 2021; 86:8805-8828. [PMID: 34151556 DOI: 10.1021/acs.joc.1c00714] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A base-free and acceptorless Ru-catalyzed dehydrogenative approach has been developed for the synthesis of N-heterocycles by using 1,3-dicarbonyls and amino alcohols through a domino sequential enamine formation and intramolecular oxidative cyclization strategy. This unified approach is also applicable for the synthesis of O-heterocycles involving 2-hydroxybenzyl alcohol as a coupling reactant via consecutive C-alkylation and intramolecular cyclization steps. The present protocol is general for the synthesis of varieties of biologically important scaffolds, such as tetrahydro-4H-indol-4-one, 3,4-dihydroacridin-1(2H)-one, and tetrahydro-1H-xanthen-1-ones derivatives using a single catalytic system, viz. RuH2CO(PPh3)3. Environmentally benign H2O and H2 are the only byproducts in this domino process. Moreover, RuH2CO(PPh3)3-catalyzed C3-alkylation of tetrahydro-4H-indol-4-one using alcohol as a alkylating partner is also described in this report. For the first time, a solvent-free gram-scale reaction for the acceptorless dehydrogenative annulation has been demonstrated. A plausible mechanism for the Ru-catalyzed base-free and acceptorless dehydrogenative annulation of amino alcohols or 2-hydroxybenzyl alcohols has been provided with several experimental investigations and spectroscopic evidence.
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Affiliation(s)
- Akanksha M Pandey
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Naveen Kumar Digrawal
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Nirmala Mohanta
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Akash Bandu Jamdade
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Moreshwar B Chaudhari
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Girish Singh Bisht
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Boopathy Gnanaprakasam
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
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Philkhana SC, Badmus FO, Dos Reis IC, Kartika R. Recent Advancements in Pyrrole Synthesis. SYNTHESIS-STUTTGART 2021; 53:1531-1555. [PMID: 34366491 PMCID: PMC8340853 DOI: 10.1055/s-0040-1706713] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
This review article features selected examples on the synthesis of functionalized pyrroles that were reported between 2014 and 2019. Pyrrole is an important nitrogen-containing aromatic heterocycle that can be found in numerous compounds of biological and material significance. Given its vast importance, pyrrole continues to be an attractive target for the development of new synthetic reactions. The contents of this article are organized by the starting materials, which can be broadly classified into four different types: substrates bearing π-systems, substrates bearing carbonyl and other polar groups, and substrates bearing heterocyclic motifs. Brief discussions on plausible reaction mechanisms for most transformations are also presented.
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Affiliation(s)
- Satish Chandra Philkhana
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Fatimat O Badmus
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Isaac C Dos Reis
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
| | - Rendy Kartika
- Department of Chemistry, Louisiana State University, 232 Choppin Hall, Baton Rouge, LA 70803, USA
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Triethanolamine–sodium acetate as a novel deep eutectic solvent for promotion of tetrahydrodipyrazolopyridines synthesis under microwave irradiation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2021. [DOI: 10.1007/s13738-021-02178-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Behalo MS, Bloise E, Mele G, Salomone A, Messa F, Carbone L, Mazzetto SE, Lomonaco D. Bio‐based benzoxazines synthesized in a deep eutectic solvent: A greener approach toward vesicular nanosystems. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3818] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Mohamed S. Behalo
- Chemistry Department, Faculty of ScienceBenha University P.O. Box 13518, Benha Egypt
| | - Ermelinda Bloise
- Department of Engineering for InnovationUniversity of Salento via Arnesano, 73100 Lecce Italy
| | - Giuseppe Mele
- Department of Engineering for InnovationUniversity of Salento via Arnesano, 73100 Lecce Italy
| | - Antonio Salomone
- Dipartimento di Scienze e Tecnologie Biologiche ed AmbientaliUniversitàdel Salento Prov.le Lecce‐Monteroni, I‐73100, Lecce Italy
| | - Francesco Messa
- Dipartimento di Scienze e Tecnologie Biologiche ed AmbientaliUniversitàdel Salento Prov.le Lecce‐Monteroni, I‐73100, Lecce Italy
| | - Luigi Carbone
- CNR NANOTEC‐Institute of Nanotechnology c/o Campus EcotekneUniversity of Salento via Monteroni, Lecce 73100 Italy
| | - Selma Elaine Mazzetto
- Laboratory of Products and Processes Technology (LPT), Department of Organic and Inorganic ChemistryFederal University of Ceara Fortaleza Brazil
| | - Diego Lomonaco
- Laboratory of Products and Processes Technology (LPT), Department of Organic and Inorganic ChemistryFederal University of Ceara Fortaleza Brazil
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Aghapoor K, Mohsenzadeh F, Darabi HR, Sayahi H, Jalali MR. ZnCl
2
/Urea Eutectic Solvent as Stable Carbonylation Source for Benign Synthesis of 2–Benzimidazolones and 2–Imidazolones: An Effective Strategy for Preventing NH
3
Gas Evolution. ChemistrySelect 2019. [DOI: 10.1002/slct.201902706] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Kioumars Aghapoor
- Applied Chemicals Synthesis Lab.Chemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., km 17, Karaj Hwy Tehran 14968-13151 Iran
| | - Farshid Mohsenzadeh
- Applied Chemicals Synthesis Lab.Chemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., km 17, Karaj Hwy Tehran 14968-13151 Iran
| | - Hossein Reza Darabi
- Applied Chemicals Synthesis Lab.Chemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., km 17, Karaj Hwy Tehran 14968-13151 Iran
| | - Hani Sayahi
- Applied Chemicals Synthesis Lab.Chemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., km 17, Karaj Hwy Tehran 14968-13151 Iran
| | - Mohammad Reza Jalali
- Applied Chemicals Synthesis Lab.Chemistry & Chemical Engineering Research Center of Iran Pajoohesh Blvd., km 17, Karaj Hwy Tehran 14968-13151 Iran
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A practical multigram-scale method for the green synthesis of 5-substituted-1H-tetrazoles in deep eutectic solvent. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.12.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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10
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Chen Y, Yu D, Fu L, Wang M, Feng D, Yang Y, Xue X, Wang J, Mu T. The dynamic evaporation process of the deep eutectic solvent LiTf2N:N-methylacetamide at ambient temperature. Phys Chem Chem Phys 2019; 21:11810-11821. [DOI: 10.1039/c9cp00148d] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The dynamic evaporation process of the lithium-based deep eutectic solvent LiTf2N:NMA under ambient conditions can be divided into three stages.
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Affiliation(s)
- Yu Chen
- Department of Chemistry and Material Science
- Langfang Normal University
- Langfang 065000
- P. R. China
| | - Dongkun Yu
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- P. R. China
| | - Li Fu
- Department of Chemistry and Material Science
- Langfang Normal University
- Langfang 065000
- P. R. China
| | - Meng Wang
- Department of Chemistry and Material Science
- Langfang Normal University
- Langfang 065000
- P. R. China
| | - Dongran Feng
- Department of Chemistry and Material Science
- Langfang Normal University
- Langfang 065000
- P. R. China
| | - Yingze Yang
- Department of Chemistry and Material Science
- Langfang Normal University
- Langfang 065000
- P. R. China
| | - Xiaomeng Xue
- Department of Chemistry and Material Science
- Langfang Normal University
- Langfang 065000
- P. R. China
| | - Jinfang Wang
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- P. R. China
| | - Tiancheng Mu
- Department of Chemistry
- Renmin University of China
- Beijing 100872
- P. R. China
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11
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Li L, Yu H, Xu J, Zhao S, Liu Z, Li Y. Rare earth element, Sm, modified graphite phase carbon nitride heterostructure for photocatalytic hydrogen production. NEW J CHEM 2019. [DOI: 10.1039/c8nj05619f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new type of Sm2O3@Ni7S6/g-C3N4 composite has high photocatalytic activity and stability.
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Affiliation(s)
- Lingjiao Li
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- People's Republic of China
| | - Hai Yu
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- People's Republic of China
| | - Jing Xu
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- People's Republic of China
- Key Laboratory of Chemical Engineering & Technology
| | - Sheng Zhao
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- People's Republic of China
| | - Zeying Liu
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- People's Republic of China
| | - Yanru Li
- School of Chemistry and Chemical Engineering
- North Minzu University
- Yinchuan 750021
- People's Republic of China
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12
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Wang D, Liu S, Gan Q, Tian J, Isimjan TT, Yang X. Two-dimensional nickel hydroxide nanosheets with high-content of nickel(III) species towards superior urea electro-oxidation. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.10.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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