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Nasiriani T, Javanbakht S, Nazeri MT, Farhid H, Khodkari V, Shaabani A. Isocyanide-Based Multicomponent Reactions in Water: Advanced Green Tools for the Synthesis of Heterocyclic Compounds. Top Curr Chem (Cham) 2022; 380:50. [PMID: 36136281 DOI: 10.1007/s41061-022-00403-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 08/12/2022] [Indexed: 12/01/2022]
Abstract
Reaction rate acceleration using green methods is an intriguing area of research for chemists. In this regard, water as a "green solvent" plays a crucial role in the acceleration of some organic transformations and reveals exclusive selectivity and reactivity in comparison with conventional organic solvents. In particular, multicomponent reactions (MCRs) as sustainable tools lead to the rapid generation of small-molecule libraries in water and aqueous media due to the prominent role of the hydrophobic effect. MCRs, as diversity-oriented synthesis (DOS) methods, have great efficiency with simple operations, atom, pot, and step economy synthesis, and mechanistic beauty. Among diverse classes of MCRs, isocyanide-based multicomponent reactions (I-MCRs), as sustainable and versatile reactions, have gained considerable attention in the synthesis of diverse heterocycle rings, especially in drug design because of the peculiar nature of isocyanide as a particular active reactant. I-MCRs that are performed in water are mild, environmentally friendly, and easily controlled, and have a reduced number of workup, purification, and extraction steps, which fit well with the advantages of "green" chemistry. Performing these powerful organic transformations in water and aqueous media is accompanied by acceleration owing to negative activation volumes, which originate from connecting several reactants together to generate a single product. It should be noted that the combination of MCR strategy and aqueous phase reaction is of growing interest for the development of sustainable synthetic techniques in organic conversions. However, an exclusive account focusing on the recent progress in eco-friendly I-MCRs for the construction of heterocycles in water and aqueous media is particularly lacking. This review highlights the progress of various kinds of I-MCRs in water and aqueous media as benign methods for the efficient construction of vital heterocyclic scaffolds, with a critical discussion of the subject in the period 2000-2021. We hope that this themed collection will be of interest and beneficial for organic and pharmaceutical chemists and will inspire more reaction development in this fascinating field.
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Affiliation(s)
- Tahereh Nasiriani
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Siamak Javanbakht
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Mohammad Taghi Nazeri
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Hassan Farhid
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Vida Khodkari
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran
| | - Ahmad Shaabani
- Department of Organic Chemistry, Shahid Beheshti University, Daneshjou Boulevard Street, Tehran, 1983969411, Iran. .,Peoples' Friendship University of Russia, RUDN University, 6, Miklukho-Maklaya Street, Moscow, 117198, Russian Federation.
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Novoa T, Contreras-García J, Fuentealba P, Cárdenas C. The Pauli principle and the confinement of electron pairs in a double well: Aspects of electronic bonding under pressure. J Chem Phys 2019; 150:204304. [PMID: 31153164 DOI: 10.1063/1.5089963] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
It has become recently clear that chemical bonding under pressure is still lacking guiding principles for understanding the way electrons reorganize when their volume is constrained. As an example, it has recently been shown that simple metals can become insulators (aka electrides) when submitted to high enough pressures. This has lead to the general believe that "a fundamental yet empirically useful understanding of how pressure alters the chemistry of the elements is lacking" [R. J. Hemley, High Pressure Res. 30, 581 (2010)]. In this paper, we are interested in studying the role that the Pauli principle plays on the localization/delocalization of confined noninteracting electrons. To this end, we have considered the simple case of a 1-dimensional (1-D) double well as a confining potential, and the Electron Localization Function (ELF) has been used to characterize the degree localization/delocalization of the systems of noninteracting electrons. Then, we have systematically studied the topology of the ELF as a function of the double well parameters (barrier eight and wells distance) and of the number of electrons. We have found that the evolution of the ELF distributions has a good correspondence with the evolution of chemical bonding of atomic solids under pressure.
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Affiliation(s)
- Trinidad Novoa
- Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
| | - Julia Contreras-García
- Sorbonne Universités, UPMC, Laboratoire de Chimie Théorique and CNRS UMR CNRS, Paris 7616, France
| | - Patricio Fuentealba
- Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
| | - Carlos Cárdenas
- Departamento de Física, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile
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Karaush NN, Baryshnikov GV, Minaeva VA, Ågren H, Minaev BF. Recent progress in quantum chemistry of hetero[8]circulenes. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1287438] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Nataliya N. Karaush
- Department of Chemistry and Nanomaterials Science, Bogdan Khmelnitsky National University, Cherkasy, Ukraine
| | - Gleb V. Baryshnikov
- Department of Chemistry and Nanomaterials Science, Bogdan Khmelnitsky National University, Cherkasy, Ukraine
- Laboratory of Organic Electronics, Tomsk State University, Tomsk, Russian Federation
- Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Valentina A. Minaeva
- Department of Chemistry and Nanomaterials Science, Bogdan Khmelnitsky National University, Cherkasy, Ukraine
| | - Hans Ågren
- Division of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Boris F. Minaev
- Department of Chemistry and Nanomaterials Science, Bogdan Khmelnitsky National University, Cherkasy, Ukraine
- Department of Physics, Tomsk State University, Tomsk, Russian Federation
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Pham HT, Lim KZ, Havenith RWA, Nguyen MT. Aromatic character of planar boron-based clusters revisited by ring current calculations. Phys Chem Chem Phys 2016; 18:11919-31. [DOI: 10.1039/c5cp07391j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The planarity of small boron-based clusters is the result of an interplay between geometry, electron delocalization, covalent bonding and stability.
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Affiliation(s)
- Hung Tan Pham
- Computational Chemistry Research Group
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
- Faculty of Applied Sciences
| | - Kie Zen Lim
- Theoretical Chemistry
- Zernike Institute for Advanced Materials and Stratingh Institute for Chemistry
- University of Groningen
- NL-9747 AG Groningen
- The Netherlands
| | - Remco W. A. Havenith
- Theoretical Chemistry
- Zernike Institute for Advanced Materials and Stratingh Institute for Chemistry
- University of Groningen
- NL-9747 AG Groningen
- The Netherlands
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Pham HT, Tam NM, Pham-Ho MP, Nguyen MT. Stability and bonding of the multiply coordinated bimetallic boron cycles: B8M22−, B7NM2and B6C2M2with M = Sc and Ti. RSC Adv 2016. [DOI: 10.1039/c6ra04948f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A theoretical investigation of the geometry, stability and aromaticity of boron clusters doped by two Sc and Ti atoms was carried out using DFT calculations.
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Affiliation(s)
- Hung Tan Pham
- Computational Chemistry Research Group
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
- Faculty of Applied Sciences
| | - Nguyen Minh Tam
- Computational Chemistry Research Group
- Ton Duc Thang University
- Ho Chi Minh City
- Vietnam
- Faculty of Applied Sciences
| | - My Phuong Pham-Ho
- Institute for Computational Science and Technology (ICST)
- Ho Chi Minh City
- Vietnam
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Pham HT, Nguyen MT. Effects of bimetallic doping on small cyclic and tubular boron clusters: B7M2 and B14M2 structures with M = Fe, Co. Phys Chem Chem Phys 2015; 17:17335-45. [PMID: 26073876 DOI: 10.1039/c5cp01650a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using density functional theory with the TPSSh functional and the 6-311+G(d) basis set, we extensively searched for the global minima of two metallic atoms doped boron clusters B6M2, B7M2, B12M2 and B14M2 with transition metal element M being Co and Fe. Structural identifications reveal that B7Co2, B7Fe2 and B7CoFe clusters have global minima in a B-cyclic motif, in which a perfectly planar B7 is coordinated with two metallic atoms placed along the C7 axis. The B6 cluster is too small to form a cycle with the presence of two metals. Similarly, the B12 cluster is not large enough to stabilize the metallic dimer within a double ring 2 × B6 tube. The doped B14M2 clusters including B14Co2, B14Fe2 and B14CoFe have a double ring 2 × B7 tubular shape in which one metal atom is encapsulated by the B14 tube and the other is located at an exposed position. Dissociation energies demonstrate that while bimetallic cyclic cluster B7M2 prefers a fragmentation channel that generates the B7 global minimum plus metallic dimer, the tubular structure B14M2 tends to dissociate giving a bimetallic cyclic structure B7M2 and a B@B6 cluster. The enhanced stability of the bimetallic doped boron clusters considered can be understood from the stabilizing interactions between the anti-bonding MOs of metal-metal dimers and the levels of a disk aromatic configuration (for bimetallic cyclic structures), or the eigenstates of the B14 tubular form (in case of bimetallic tubular structure).
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Affiliation(s)
- Hung Tan Pham
- Computational Chemistry Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
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Tai TB, Nguyen MT. The B32cluster has the most stable bowl structure with a remarkable heptagonal hole. Chem Commun (Camb) 2015; 51:7677-80. [DOI: 10.1039/c5cc01252j] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cluster B320/−exhibits an aromatic bowl structure containing one heptagonal hole.
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Affiliation(s)
- Truong Ba Tai
- Department of Chemistry
- University of Leuven
- B-3001 Leuven
- Belgium
| | - Minh Tho Nguyen
- Department of Chemistry
- University of Leuven
- B-3001 Leuven
- Belgium
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