1
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Gallardo-Fuentes S, Lodeiro L, Matute R, Fernández I. Mechanistic Insights into the DABCO-Catalyzed Cloke-Wilson Rearrangement: A DFT Perspective. J Org Chem 2023; 88:15902-15912. [PMID: 37885222 PMCID: PMC10661052 DOI: 10.1021/acs.joc.3c02011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023]
Abstract
The mechanism and selectivity patterns of the DABCO-catalyzed Cloke-Wilson rearrangement were computationally studied in detail using density functional theory calculations. Our computations suggest that the process occurs stepwise involving the initial ring opening of the cyclopropane promoted by a DABCO molecule followed by a ring-closure reaction of the readily formed zwitterionic intermediate. The regioselectivity of the initial nucleophilic ring-opening step strongly depends on the nature of the substituent attached to the cyclopropane moiety. The physical factors governing the preference for the more sterically hindered C2 (tertiary) position have been quantitatively analyzed by applying the combined activation strain model-energy decomposition analysis method. In addition, our calculations revealed a new mechanism for the analogous transformation involving vinylcyclopropanes consisting of an initial SN2' ring-opening process followed by a 5-exo-trig cyclization step, which proceeds without facial selectivity.
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Affiliation(s)
- Sebastián Gallardo-Fuentes
- Instituto
de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso, Avenida Universidad 330, Curauma, Valparaíso 2373223, Chile
| | - Lucas Lodeiro
- Departamento
de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago 7800003, Chile
| | - Ricardo Matute
- Centro
Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O’Higgins, Santiago 8370854, Chile
| | - Israel Fernández
- Departamento
de Química Orgánica I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid 28040, Spain
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2
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Chakraborty N, Mitra AK. The versatility of DABCO as a reagent in organic synthesis: a review. Org Biomol Chem 2023; 21:6830-6880. [PMID: 37605948 DOI: 10.1039/d3ob00921a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
DABCO (1,4-diazabicyclo[2.2.2]octane) has garnered a lot of interest for numerous organic transformations since it is a low-cost, environmentally friendly, reactive, manageable, non-toxic and basic organocatalyst with a high degree of selectivity. Moreover, DABCO functions as a nucleophile as well as a base in a variety of processes for the synthesis of a wide array of molecules, including carbocyclic and heterocyclic compounds. Protection and deprotection of functional groups and the formation of carbon-carbon bonds are also catalyzed by DABCO. The reagent also finds applications in the synthesis of functional groups like isothiocyanate, amide and ester. Application of DABCO in cycloaddition, coupling, aromatic nucleophilic substitution, ring-opening, oxidation and rearrangement reactions is also noteworthy. This is a state of the art review that has encompassed a variety of processes for the synthesis of organic frameworks using DABCO.
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Affiliation(s)
- Nitisha Chakraborty
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (ISM) Dhanbad, Jharkhand, Pin: 826004, India
| | - Amrit Krishna Mitra
- Department of Chemistry, Government General Degree College, Singur, Singur, Hooghly, West Bengal, Pin: 712409, India.
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3
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Drabczyk AK, Kułaga D, Zaręba P, Tylińska W, Bachowski W, Archała A, Wnorowski A, Tzani A, Detsi A, Jaśkowska J. Eco-friendly synthesis of new olanzapine derivatives and evaluation of their anticancer potential. RSC Adv 2023; 13:20467-20476. [PMID: 37435368 PMCID: PMC10331126 DOI: 10.1039/d3ra03926a] [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: 06/12/2023] [Accepted: 06/30/2023] [Indexed: 07/13/2023] Open
Abstract
New derivatives of the known antipsychotic drug olanzapine have been obtained as potential compounds with anticancer activity in two metabolically different breast cancer cell lines: MCF-7 and triple negative MDA-MB-231. The compounds were obtained under phase transfer catalysis (PTC) in the presence of microwave irradiation (MW) or ultrasound (")))"), evaluating the effect of solvents such as dimethylformamide, water, or choline chloride/urea (natural deep eutectic solvent, NaDES). In the best option, the compounds were obtained within 2 minutes with a yield of 57-86% in MW. Two of the obtained compounds which have a naphthalimide moiety and a pentyl (7) or hexyl chain (8) show pronounced cytotoxicity. Interestingly, neither olanzapine nor desmethylolanzapine (DOLA), which was one of the substrates for the synthesis reaction, showed any significant activity in the study.
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Affiliation(s)
- Anna K Drabczyk
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology 24 Warszawska Street 31-155 Cracow Poland
| | - Damian Kułaga
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology 24 Warszawska Street 31-155 Cracow Poland
| | - Przemysław Zaręba
- Faculty of Chemical Engineering and Technology, Department of Organic Chemistry and Technology, Cracow University of Technology 24 Warszawska Street 31-155 Cracow Poland
| | - Wiktoria Tylińska
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology 24 Warszawska Street 31-155 Cracow Poland
| | - Wojciech Bachowski
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology 24 Warszawska Street 31-155 Cracow Poland
| | - Aneta Archała
- Department of Biopharmacy, Medical University of Lublin 4a Chodzki Street 20-059 Lublin Poland
| | - Artur Wnorowski
- Department of Biopharmacy, Medical University of Lublin 4a Chodzki Street 20-059 Lublin Poland
| | - Andromachi Tzani
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens 15780 Zografou Athens Greece
| | - Anastasia Detsi
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens 15780 Zografou Athens Greece
| | - Jolanta Jaśkowska
- Faculty of Chemical Engineering and Technology, Department of Chemical Technology and Environmental Analytics, Cracow University of Technology 24 Warszawska Street 31-155 Cracow Poland
- Laboratory of Organic Chemistry, Department of Chemical Sciences, School of Chemical Engineering, National Technical University of Athens 15780 Zografou Athens Greece
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4
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Anchan HN, Dutta S. Renewable synthesis of novel acrylates from biomass‐derived 5‐substituted‐2‐furaldehydes by Morita‐Baylis‐Hillman reaction. ChemistrySelect 2023. [DOI: 10.1002/slct.202300264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Harshitha N. Anchan
- Department of Chemistry National Institute of Technology Karnataka (NITK), Surathkal Mangalore Karnataka 575025 India
| | - Saikat Dutta
- Department of Chemistry National Institute of Technology Karnataka (NITK), Surathkal Mangalore Karnataka 575025 India
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5
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DFT analysis and in vitro studies of isoxazole derivatives as potent antioxidant and antibacterial agents synthesized via one-pot methodology. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04910-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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6
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Huang X, Besset T, Jubault P, Couve-Bonnaire S. Phospha-Michael Addition on α-Fluorinated Acrylates: A Straightforward Access to Polyfunctionalized Fine Chemicals. J Org Chem 2022; 87:9210-9221. [PMID: 35749447 DOI: 10.1021/acs.joc.2c00937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
α-Fluorinated acrylates could act as Michael acceptors and become a platform toward the synthesis of relevant complex molecules. Very few conjugate additions have been developed in the literature with these specific substrates, and herein, we reported the first phospha-Michael addition (PMA) on α-trifluoromethylacrylates and α-fluoromethylacrylates. The reaction proved to be highly tolerant and gave original products containing contiguous C-P and C-CFY2 (Y = F or H) bonds in good to excellent yields and diastereoselectivities.
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Affiliation(s)
- Xin Huang
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Philippe Jubault
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
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7
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Atchuta Ramarao T, Jha A, Sen A. A Mechanistic Approach on the Cs
2
CO
3
Mediated Synthesis of 4‐Azaindole Analogues Bearing Pyridine‐3‐Carboxamide and 1‐Phenylethanone. ChemistrySelect 2022. [DOI: 10.1002/slct.202200719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- T. Atchuta Ramarao
- Department of Chemistry GITAM Institute of Science GITAM (Deemed to be University), Rushikonda Visakhapatnam Andhra Pradesh 530045 India
| | - Anjali Jha
- Department of Chemistry GITAM Institute of Science GITAM (Deemed to be University), Rushikonda Visakhapatnam Andhra Pradesh 530045 India
| | - Anik Sen
- Department of Chemistry GITAM Institute of Science GITAM (Deemed to be University), Rushikonda Visakhapatnam Andhra Pradesh 530045 India
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8
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Halimehjani AZ, Dehghan F, Tafakori V, Amini E, Hooshmand SE, Nosood YL. Synthesis of novel antibacterial and antifungal dithiocarbamate-containing piperazine derivatives via re-engineering multicomponent approach. Heliyon 2022; 8:e09564. [PMID: 35669544 PMCID: PMC9163505 DOI: 10.1016/j.heliyon.2022.e09564] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/27/2022] [Accepted: 05/25/2022] [Indexed: 11/21/2022] Open
Abstract
A metal-free multicomponent synthetic route for the diverse preparation of dithiocarbamate-containing piperazine derivatives was developed through the C-N bond cleavage of DABCO ring. This multicomponent re-engineering approach proceeds via the reaction of amines, CS2 and DABCO salts in one pot. Various DABCO salts and secondary amines are tolerated well in this protocol to afford a broad spectrum of dithiocarbamate-containing piperazines in good to high yields. Then, the selected compounds have been deployed against some critical types of bacteria and fungi. A certain number of synthesized compounds revealed not only appropriate antibacterial activity as investigated by disc fusion and minimum inhibitory concentration methods against bacteria (Gram-positive and Gram-negative), but also depicted good to excellent antifungal activity.
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Affiliation(s)
| | - Faezeh Dehghan
- Faculty of Chemistry, Kharazmi University, 49 Mofateh St., 15719-14911, Tehran, Iran
| | - Vida Tafakori
- Department of Cell and Molecular Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Elaheh Amini
- Department of Animal Biology, Faculty of Biological Sciences, Kharazmi University, Tehran, Iran
| | - Seyyed Emad Hooshmand
- Department of Medical Nanotechnology, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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9
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Li D, Cheng F, Tang Y, Li J, Li Y, Jiao J, Xu S. DABCO-Catalyzed [4 + 2] Annulation of 5-Methylenehex-2-ynedioates with Electron-Deficient Alkenes. J Org Chem 2022; 87:6362-6370. [DOI: 10.1021/acs.joc.1c03159] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dongqiu Li
- School of Chemistry, and Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, P.R. China
| | - Fang Cheng
- School of Chemistry, and Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, P.R. China
| | - Yuhai Tang
- School of Chemistry, and Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, P.R. China
| | - Jing Li
- School of Chemistry, and Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, P.R. China
| | - Yang Li
- School of Chemistry, and Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, P.R. China
| | - Jiao Jiao
- School of Chemistry, and Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, P.R. China
| | - Silong Xu
- School of Chemistry, and Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, Xi’an Jiaotong University, Xi’an 710049, P.R. China
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10
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Johari S, Johan MR, Khaligh NG. An Overview of Metal-free Sustainable Nitrogen-based Catalytic Knoevenagel Condensation Reaction . Org Biomol Chem 2022; 20:2164-2186. [DOI: 10.1039/d2ob00135g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Knoevenagel condensation reaction counts as a vital condensation in organic chemistry due to the synthesis of valuable intermediates, heterocycles, and fine chemicals from commercially available reactants through forming new C=C...
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11
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Liyanage Perera E, Lee D. Hydrogen Bonding-directed Sequential 1,6/1,4-Addition of Heteroatom Nucleophiles onto Electron-deficient 1,3-Diynes. Org Chem Front 2022. [DOI: 10.1039/d2qo01730j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The hydrogen bonding-directed sequential 1,6/1,4-additions developed herein allow for creating unique heterocycles with structural diversity under mild conditions without using metal catalysts or organometallic reagents.
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Affiliation(s)
- Erandi Liyanage Perera
- Department of Chemistry, University of Illinois Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
| | - Daesung Lee
- Department of Chemistry, University of Illinois Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
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12
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Mondal D, Ghosh A, Paul I, Schmittel M. Fuel Acid Drives Base Catalysis and Supramolecular Cage-to-Device Transformation under Dissipative Conditions. Org Lett 2021; 24:69-73. [PMID: 34913702 DOI: 10.1021/acs.orglett.1c03654] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
In State-I, a mixture comprising a DABCO-bridged tris(zinc-porphyrin) double decker and a free biped (=slider), catalysis was OFF. Acid addition (TFA or Di-Stefano fuel acid) to State-I liberated DABCO-H+ while generating a highly dynamic slider-on-deck device (State-II). The released DABCO-H+ acted as a base organocatalyst for a Knoevenagel reaction (catalysis ON). The system was reversed to State-I (catalysis OFF) by reducing the acidity in the system (by adding DBU or via the fuel-derived base).
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Affiliation(s)
- Debabrata Mondal
- Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Organische Chemie I, Adolf-Reichwein-Str. 2, D-57068 Siegen, Germany
| | - Amit Ghosh
- Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Organische Chemie I, Adolf-Reichwein-Str. 2, D-57068 Siegen, Germany
| | - Indrajit Paul
- Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Organische Chemie I, Adolf-Reichwein-Str. 2, D-57068 Siegen, Germany
| | - Michael Schmittel
- Center of Micro- and Nanochemistry and (Bio)Technology (Cμ), Organische Chemie I, Adolf-Reichwein-Str. 2, D-57068 Siegen, Germany
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13
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Faizan M, Pawar R. DABCO as a potential catalyst for the CO
2
fixation: A density functional theory and ab initio molecular dynamics study. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4284] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mohmmad Faizan
- Department of Chemistry National Institute of Technology Warangal (NITW) Warangal India
| | - Ravinder Pawar
- Department of Chemistry National Institute of Technology Warangal (NITW) Warangal India
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14
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Synthesis, molecular structure, and properties of DABCO bromide based ionic liquid combining spectroscopic studies with DFT calculations. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130102] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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