1
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A comprehensive investigation of structural features, electron delocalization, optoelectronic and anti-corrosion characteristics in furan oligomers by DFT/TDDFT method. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02760-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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2
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Gagarin AA, Suntsova PO, Minin AS, Pozdina VA, Slepukhin PA, Benassi E, Belskaya NP. Two Approaches for the Synthesis of Fused Dihydropyridines via a 1,6-Electrocyclic Reaction: Fluorescent Properties and Prospects for Application. J Org Chem 2020; 85:13837-13852. [PMID: 33107738 DOI: 10.1021/acs.joc.0c01934] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reactions of penta-2,4-dienethioamides with acetylenedicarboxylic acid, methyl and ethyl esters, and methyl propiolate were systematically studied, and a number of new 2,3-dihydro-5H-thiazolo[3,2-a]pyridines (DTPs) and 4H,6H-pyrido[2,1-b][1,3]thiazines (PTZs) were prepared. A possible mechanism for a multistep domino transformation is suggested, and the key step is the 1,6-electrocyclic reaction. An additional alternative method for the synthesis of new heterocyclic systems was achieved. Evidence of the electrocyclic mechanism of a key step was collected from the analysis of the spatial structure of the synthesized bicyclic nonaromatic pyridines by X-ray diffraction and quantum chemical calculations, as well as from the thermodynamic quantities. DTPs exhibited yellow fluorescence in solution and yellow to red emissions in the solid state. Biological investigations demonstrated the ability of DTPs to penetrate living and fixed cells and presumably accumulate in lysosomes.
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Affiliation(s)
- Aleksey A Gagarin
- Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russian Federation
| | - Polina O Suntsova
- Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russian Federation
| | - Artem S Minin
- Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russian Federation.,M. N. Mikheev Institute of Metal Physics, Ural Branch of Russian Academy of Science, 18 South Kovalevskaya Street, Yekaterinburg 620219, Russian Federation
| | - Varvara A Pozdina
- Institute of Immunology and Physiology, Pervomayskaya Str. 106, Ekaterinburg 620049, Russian Federation
| | - Pavel A Slepukhin
- Postovsky Institute of Organic Synthesis, Ural Branch of Russian Academy of Science, 22 South Kovalevskaya Street, Yekaterinburg 620219, Russian Federation
| | - Enrico Benassi
- Shihezi University, 280 North Fourth Road, Shihezi, Xinjiang 832000, China
| | - Nataliya P Belskaya
- Ural Federal University, 19 Mira Street, Yekaterinburg 620002, Russian Federation.,Postovsky Institute of Organic Synthesis, Ural Branch of Russian Academy of Science, 22 South Kovalevskaya Street, Yekaterinburg 620219, Russian Federation
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3
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Exploring the regioselectivity in the cycloaddition of azides to alkynes catalyzed by dinuclear copper clusters (Cu2AAC reaction) using the topologies of ∇2 ρ (r) and ∇∇2 ρ (r). J Mol Model 2017; 23:337. [DOI: 10.1007/s00894-017-3500-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 10/10/2017] [Indexed: 10/18/2022]
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4
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Barquera-Lozada JE. Torquoselectivity in Cyclobutene Ring Openings and the Interatomic Interactions That Control Them. J Phys Chem A 2016; 120:8450-8460. [PMID: 27723338 DOI: 10.1021/acs.jpca.6b08771] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Torquoselectivity has explained diasteromeric preferences of a number electrocyclic ring openings. The quantum theory of atoms in molecules (QTAIM), the electron localizability indicator (ELI-D), and the interacting quantum atoms (IQA) energy partition method are used to evaluate qualitatively and quantitatively the atomic interactions behind the torquoselectivity of a series of 3-substituted cyclobutenes. ELI-D topology and IQA energies show that the interaction between the distal terminus carbon atom of cyclobutene (C4) with the substituent at C3 (R5) in the transition state governs torquoselectivities. In the case of 3-borylcyclobutene, this interaction is so strong that a protocovalent bond is actually formed between B5 and C4. The evaluation of the interatomic energies allowed us to identify an additional interaction that contribute to a minor extent to the stabilization of the TS. Despite the fact that C4,R5 interaction is the main cause of the torquoselectivity, a bonding path (BP) between these two atoms was not observed. However, the lack of a BP between C4 and R5 does not mean that the topology of the electron density was not affected by the interaction of these two atoms. Surprisingly, we found a strong correlation between the density at the bond critical point (BCP) and the BP shape of C3-C4 breaking bond with the observed activation energies and torquoselectivities.
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Affiliation(s)
- José Enrique Barquera-Lozada
- Instituto de Química, Universidad Nacional Autónoma de México , Circuito exterior, Ciudad Universitaria Coyoacán, México, D.F., México 04510
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5
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Sharma S, Rajale T, Unruh DK, Birney DM. Competitive Pseudopericyclic [3,3]- and [3,5]-Sigmatropic Rearrangements of Trichloroacetimidates. J Org Chem 2015; 80:11734-43. [DOI: 10.1021/acs.joc.5b01355] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shikha Sharma
- Department of Chemistry and
Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Trideep Rajale
- Department of Chemistry and
Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - Daniel K. Unruh
- Department of Chemistry and
Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
| | - David M. Birney
- Department of Chemistry and
Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061, United States
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6
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Calvo-Losada S, Pino-González MS, Quirante JJ. Rationalizing the Catalytic Activity of Copper in the Cycloaddition of Azide and Alkynes (CuAAC) with the Topology of ∇2ρ(r) and ∇∇2ρ(r). J Phys Chem B 2015; 119:1243-58. [DOI: 10.1021/jp5055414] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Saturnino Calvo-Losada
- Departamento
de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, s/n. 29071 Málaga, Spain
| | - María Soledad Pino-González
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, s/n. 29071 Málaga, Spain
| | - José Joaquín Quirante
- Departamento
de Química Física, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos, s/n. 29071 Málaga, Spain
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7
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Vallejos MM, Pellegrinet SC. Competing mechanisms for the reaction of dichloropropynylborane with 2-tert-butylbutadiene. Diels–Alder reaction versus alkynylboration. RSC Adv 2015. [DOI: 10.1039/c5ra12903f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Density functional theory and the quantum theory of atoms in molecules approach were used to study two competing process: the Diels–Alder reaction and the 1,4-alkynylboration.
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Affiliation(s)
- Margarita M. Vallejos
- Área de Química Orgánica
- Departamento de Química
- Facultad de Ciencias Exactas y Naturales y Agrimensura
- Universidad Nacional del Nordeste
- 3400 Corrientes
| | - Silvina C. Pellegrinet
- Instituto de Química Rosario (CONICET)
- Facultad de Ciencias Bioquímicas y Farmacéuticas
- Universidad Nacional de Rosario
- Rosario 2000
- Argentina
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8
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Vallejos MM, Grimblat N, Pellegrinet SC. Reactivity and selectivity of boron-substituted alkenes in the Diels-Alder reaction with cyclopentadiene. A study of the electron charge density and its Laplacian. J Phys Chem A 2014; 118:5559-70. [PMID: 24983836 DOI: 10.1021/jp504972r] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effect of the nature of the boron moiety upon the reactivity and the selectivity of a variety of vinylboron dienophiles (1-12) in the Diels-Alder (DA) reaction was investigated using density functional theory and the quantum theory of atoms in molecules. The calculated reactivity of the dienophiles decreases in the order vinylborane (1) > dihalovinylboranes (2-4) > dialkylvinylboranes (5-7) ≈ vinyl boronic acid (8) > vinylboronates (9, 10) > vinyl MIDA boronate (11) ≈ vinyltrifluoroborate (12). The DA reactions of 1-7 were slightly endo-selective due to the stronger C6-B secondary orbital interaction in the endo transition structures (TSs) evaluated by the C6|B delocalization index. In the TSs of 5 and 7, a combination of electronic and steric factors reduce the endo selectivity. The moderate exo selectivity calculated for the DA reactions of boronates 8-11 was attributed mainly to the hydrogen bond between the oxygen atom of boronate moieties and one of the acidic hydrogens of the methylene of cyclopentadiene in the exo TSs, which also reduces the ability of the oxygen lone pairs to donate electron density into the vacant boron orbital. Interestingly, the cooperative effect between the two hydrogen bonds in the exo TS of the DA reaction of vinyltrifluoroborate (12) determines the almost exclusive exo selectivity predicted for this DA reaction. We propose that the relative reactivities of the dienophiles can be estimated by the charge density (ρr) and its Laplacian (∇(2)ρr) at the (3,+1) critical point in the topology of ∇(2)ρr, evaluated at the reactant molecules in the ground state. The profiles of the several topological parameters along the reaction are affected by the nature of the substituents attached to the boron atom and by the mode of addition (endo and exo) in the DA reactions.
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Affiliation(s)
- Margarita M Vallejos
- Instituto de Quı́mica Rosario (CONICET), Facultad de Ciencias Bioquı́micas y Farmacéuticas, Universidad Nacional de Rosario , Suipacha 531, Rosario 2000, Argentina
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9
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On the regioselectivity of the mononuclear copper-catalyzed cycloaddition of azide and alkynes (CuAAC). A quantum chemical topological study. J Mol Model 2014; 20:2187. [DOI: 10.1007/s00894-014-2187-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 02/24/2014] [Indexed: 10/25/2022]
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10
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Laplacian of the electron density: a hole-lump interaction as a tool to study stereoelectronic control of chemical reactions. J PHYS ORG CHEM 2013. [DOI: 10.1002/poc.3260] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Vallejos MM, Peruchena NM, Pellegrinet SC. [4 + 3] and [4 + 2] mechanisms of the Diels-Alder reactions of vinylboranes: an analysis of the electron charge density distribution. Org Biomol Chem 2013; 11:7953-65. [PMID: 24141322 DOI: 10.1039/c3ob41571f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Diels-Alder (DA) reactions of isoprene with vinylborane, dimethylvinylborane and dichlorovinylborane have been studied using density functional theory and the quantum theory of atoms in molecules. We evaluated the topological properties of the transition structures (TSs) and the evolution of such properties along the reaction paths. In accordance with previous studies, our results indicate that the endo TSs of the reaction with vinylborane present high [4 + 3] character, while the exo TSs and all the TSs of the reactions with dimethylvinylborane and dichlorovinylborane have [4 + 2] character. The higher charge concentration between the diene and the dienophile appears to account for the greater stabilization of the [4 + 3] TSs. The [4 + 3] structure turns into the [4 + 2] structure through a conflict mechanism in which the C1 and B atoms compete to become attached to C6. The C6-B interaction, present from early steps of the reaction until beyond the TSs, plays a key role in facilitating the formation of the new σ-bonds. The [4 + 3] and [4 + 2] mechanisms for the DA reactions of boron-substituted dienophiles may be distinguished by analyzing the profile of the ellipticity at the C1-C6 bcp along the course of the reaction.
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Affiliation(s)
- Margarita M Vallejos
- Instituto de Química Rosario (CONICET), Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario (2000), Argentina.
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12
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Robbins TF, Qian H, Su X, Hughes RP, Aprahamian I. Cyanide Detection Using a Triazolopyridinium Salt. Org Lett 2013; 15:2386-9. [DOI: 10.1021/ol4008298] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Thomas F. Robbins
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Hai Qian
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Xin Su
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Russell P. Hughes
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Ivan Aprahamian
- Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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13
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Dub PA, Ikariya T. Quantum chemical calculations with the inclusion of nonspecific and specific solvation: asymmetric transfer hydrogenation with bifunctional ruthenium catalysts. J Am Chem Soc 2013; 135:2604-19. [PMID: 23336817 DOI: 10.1021/ja3097674] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Details of the mechanism of asymmetric transfer hydrogenation of ketones catalyzed by two chiral bifunctional ruthenium complexes, (S)-RuH[(R,R)-OCH(Ph)CH(Ph)NH(2)](η(6)-benzene) (Ru-1) or (S)-RuH[(R,R)-p-TsNCH(Ph)CH(Ph)NH(2)](η(6)-mesitylene) (Ru-2), were studied computationally by density functional theory, accounting for the solvation effects by using continuum, discrete, and mixed continuum/discrete solvation models via "solvated supermolecules" approach. In contrast to gas phase quantum chemical calculations, where the reactions were found to proceed via a concerted three-bond asynchronous process through a six-membered pericyclic transition state, incorporation of the implicit and/or explicit solvation into the calculations suggests that the same reactions proceed via two steps in solution: (i) enantio-determining hydride transfer and (ii) proton transfer through the contact ion-pair intermediate, stabilized primarily by ionic hydrogen bonding between the cation and the anion. The calculations suggest that the proton source for neutralizing the chiral RO(-) anion may be either the amine group of the cationic Ru complex or, more likely, a protic solvent molecule. In the latter case, the reaction may not necessarily proceed via the 16e amido complex Ru[(R,R)-XCH(Ph)CH(Ph)NH](η(6)-arene). The origin of enantioselectivity is discussed in terms of the newly formulated mechanism.
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Affiliation(s)
- Pavel A Dub
- Department of Applied Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 O-okayama, Tokyo 152-8552, Japan
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14
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Almeida MO, Faria SHDM. Computational Study of the Alkylation Reaction of the Nitrogen Mustard Mechlorethamine Using NBO Model and the QTAIM Theory. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ojpc.2013.34016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Shellhamer DF, Bunting SA, Hickle KR, Horn PC, Milligan JC, Shipowick DE, Smith LB, Vandenbroek DJ, Perry MC, Boatz JA. Kinetic Studies on the Reaction of Chlorosulfonyl Isocyanate with Monofluoroalkenes: Experimental Evidence for Both Stepwise and Concerted Mechanisms and a Pre-equilibrium Complex on the Reaction Pathway. J Org Chem 2012; 78:246-52. [DOI: 10.1021/jo3016488] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Jerry A. Boatz
- Air Force Research
Laboratory, Edwards Air Force Base, California
93524-7680, United
States
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16
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Asahara H, Matsui S, Masuda Y, Ikuma N, Oshima T. Versatile Domino Rearrangement of Diphenylhomobenzoquinone Epoxides Induced by CF3SO3H. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200455] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Otero-de-la-Roza A, Luaña V. Topological Characterization of the Electron Density Laplacian in Crystals. The Case of the Group IV Elements. J Chem Theory Comput 2010. [DOI: 10.1021/ct100269e] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A. Otero-de-la-Roza
- Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Víctor Luaña
- Departamento de Química Física y Analítica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain
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18
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Souto JA, Pérez M, Silva López C, Álvarez R, Torrado A, de Lera AR. Competing Thermal Electrocyclic Ring-Closure Reactions of (2Z)-Hexa-2,4,5-trienals and Their Schiff Bases. Structural, Kinetic, and Computational Studies. J Org Chem 2010; 75:4453-62. [DOI: 10.1021/jo100558p] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- José A. Souto
- Departamento de Química Orgánica, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
| | - Martín Pérez
- Departamento de Química Orgánica, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
| | - Carlos Silva López
- Departamento de Química Orgánica, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
| | - Rosana Álvarez
- Departamento de Química Orgánica, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
| | - Alicia Torrado
- Departamento de Química Orgánica, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
| | - Angel R. de Lera
- Departamento de Química Orgánica, Universidade de Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain
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19
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Fluorine effect on pericyclic and pseudopericyclic processes: Evidences and ab initio theory. J CHEM SCI 2009. [DOI: 10.1007/s12039-009-0101-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Ji H, Li L, Xu X, Ham S, Hammad LA, Birney* DM. Multiphoton Infrared Initiated Thermal Reactions of Esters: Pseudopericyclic Eight-Centered cis-Elimination. J Am Chem Soc 2008; 131:528-37. [DOI: 10.1021/ja804812c] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hua Ji
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061
| | - Li Li
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061
| | - Xiaolian Xu
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061
| | - Sihyun Ham
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061
| | - Loubna A. Hammad
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061
| | - David M. Birney*
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, Texas 79409-1061
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