1
|
Eitzinger A, Reitz J, Antoni PW, Mayr H, Ofial AR, Hansmann MM. Pushing the Upper Limit of Nucleophilicity Scales by Mesoionic N-Heterocyclic Olefins. Angew Chem Int Ed Engl 2023; 62:e202309790. [PMID: 37540606 DOI: 10.1002/anie.202309790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/03/2023] [Accepted: 08/04/2023] [Indexed: 08/06/2023]
Abstract
A series of mesoionic, 1,2,3-triazole-derived N-heterocyclic olefins (mNHOs), which have an extraordinarily electron-rich exocyclic CC-double bond, was synthesized and spectroscopically characterized, in selected cases by X-ray crystallography. The kinetics of their reactions with arylidene malonates, ArCH=C(CO2 Et)2 , which gave zwitterionic adducts, were investigated photometrically in THF at 20 °C. The resulting second-order rate constants k2 (20 °C) correlate linearly with the reported electrophilicity parameters E of the arylidene malonates (reference electrophiles), thus providing the nucleophile-specific N and sN parameters of the mNHOs according to the correlation lg k2 (20 °C)=sN (N+E). With 21
Collapse
Affiliation(s)
- Andreas Eitzinger
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13 (Haus F), 81377, München, Germany
| | - Justus Reitz
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Patrick W Antoni
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Herbert Mayr
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13 (Haus F), 81377, München, Germany
| | - Armin R Ofial
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13 (Haus F), 81377, München, Germany
| | - Max M Hansmann
- Fakultät für Chemie und Chemische Biologie, Technische Universität Dortmund, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| |
Collapse
|
2
|
Pathak D, Deuri S, Phukan P. Nucleophilicity and CO2 fixation ability of phosphorus, nitrogen and sulfur ylides: insights on stereoelectronic factors from DFT study. J CHEM SCI 2021. [DOI: 10.1007/s12039-021-01983-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
3
|
Li Z, Ji P, Cheng JP. Brönsted Basicities and Nucleophilicities of N-Heterocyclic Olefins in Solution: N-Heterocyclic Carbene versus N-Heterocyclic Olefin. Which Is More Basic, and Which Is More Nucleophilic? J Org Chem 2021; 86:2974-2985. [PMID: 33464082 DOI: 10.1021/acs.joc.0c02838] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A Brönsted basicity scale comprising nine representative N-heterocyclic olefins (NHOs) was established by measuring the equilibrium acidities of their corresponding precursors in DMSO using an ultraviolet-visible spectroscopic method. The basicities (pKaHs) of the investigated NHOs cover a range from 14.7 to 24.1. The basicities of unsaturated NHOs are stronger than those of their N-heterocyclic carbene (NHC) analogues; however, the basicities for the saturated ones are much weaker than those of their NHC analogues, which is largely due to the aromatization effect that intrinsically influences the acidic dissociations of NHC and NHO precursors. The nucleophilicities of four NHOs were measured photometrically by monitoring the kinetics of reactions of these NHOs with common reference electrophiles for quantifying nucleophilic reactivities. In general, the nucleophilicity of the NHOs is much stronger than that of commonly used Lewis bases such as Ph3P or DMAP [4-(dimethylamino)pyridine] but weaker than that of their NHC analogues; however, caution should be taken when generalizing this conclusion to a wide range of electrophiles with distinctively electronic and structural properties.
Collapse
Affiliation(s)
- Zhen Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Pengju Ji
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jin-Pei Cheng
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China.,State Key Laboratory of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| |
Collapse
|
4
|
Wang Z, Niu QH, Xue XS, Ji P. The Brönsted Basicities of N-Heterocyclic Olefins in DMSO: An Effective Way to Evaluate the Stability of NHO-CO 2 Adducts. J Org Chem 2020; 85:13204-13210. [PMID: 32900190 DOI: 10.1021/acs.joc.0c01987] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A Brönsted basicity scale (∼24 pK units) for 85 commonly seen imidazole-, imidazoline-, triazole-, and thiazole-based N-heterocyclic olefins (NHOs) in DMSO was established using a well-examined computational model. The influence of substituents on the Brönsted basicities of these NHOs was investigated through basicity comparisons and rationalized by geometric analyses. The Gibbs energy (ΔGr) of the reaction between NHO and CO2 was also calculated, which linearly correlates with the basicity of the corresponding NHO, suggesting that the stability of NHO-CO2 adducts can be evaluated by the basicity of NHOs and a stronger basicity leads to a more stable NHO-CO2 adduct.
Collapse
Affiliation(s)
- Zhen Wang
- Henan Joint International Research Laboratory of Nanocomposite Sensing Materials, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China
| | - Qian-Hang Niu
- Henan Joint International Research Laboratory of Nanocomposite Sensing Materials, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China
| | - Xiao-Song Xue
- Henan Joint International Research Laboratory of Nanocomposite Sensing Materials, School of Chemical and Environmental Engineering, Anyang Institute of Technology, Anyang 455000, China.,State Key Laboratory on Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China
| | - Pengju Ji
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| |
Collapse
|
5
|
Delaude L. The Chemistry of Azolium‐Carboxylate Zwitterions and Related Compounds: a Survey of the Years 2009–2020. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000639] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Lionel Delaude
- Laboratory of CatalysisMolSys Research UnitInstitut de Chimie Organique (B6a)Université de Liège Allée du six Août 13 4000 Liège Belgium
| |
Collapse
|
6
|
de Lima Batista AP, de Oliveira-Filho AGS, Braga AAC. Probing N-heterocyclic olefin as ancillary ligand in scandium-mediated $$\hbox {CO}_2$$ to CO conversion. Theor Chem Acc 2020. [DOI: 10.1007/s00214-019-2528-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Naumann S. Synthesis, properties & applications of N-heterocyclic olefins in catalysis. Chem Commun (Camb) 2019; 55:11658-11670. [PMID: 31517349 DOI: 10.1039/c9cc06316a] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Heterocyclic olefins (NHOs), a recently (re-)discovered type of electron-rich, polar alkene, are comprehensively presented. Along with synthetic aspects and chemical properties, special emphasis is put on the multi-faceted impact NHOs already have had on catalysis. This is discussed along the lines of small molecule organocatalysis, organo- and metal-assisted polymerization and of the understanding and application of NHO-ligated organometallic complexes. Highlighted are the strong basicity of NHOs ("superbases"), their high nucleophilicity and the design principles to tailor NHO (organo-)catalysts. It is demonstrated that NHOs can complement, and in many cases out-perform, the much better established N-heterocyclic carbene-based systems. Examples include among others CO2-sequestration, the polymerization of lactones and epoxides or the transfer hydrogenation of carbonyls. Further, the unique ability to selectively address basic or nucleophilic reaction pathways via NHO-mediation is detailed, as is the bonding situation in NHO-metal complexes and the ability of the olefin to act as an electronically flexible ligand.
Collapse
Affiliation(s)
- Stefan Naumann
- University of Stuttgart, Institute of Polymer Chemistry, 70569 Stuttgart, Germany.
| |
Collapse
|
8
|
Fu HC, You F, Li HR, He LN. CO 2 Capture and in situ Catalytic Transformation. Front Chem 2019; 7:525. [PMID: 31396509 PMCID: PMC6667559 DOI: 10.3389/fchem.2019.00525] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 07/09/2019] [Indexed: 11/22/2022] Open
Abstract
The escalating rate of fossil fuel combustion contributes to excessive CO2 emission and the resulting global climate change has drawn considerable attention. Therefore, tremendous efforts have been devoted to mitigate the CO2 accumulation in the atmosphere. Carbon capture and storage (CCS) strategy has been regarded as one of the promising options for controlling CO2 build-up. However, desorption and compression of CO2 need extra energy input. To circumvent this energy issue, carbon capture and utilization (CCU) strategy has been proposed whereby CO2 can be captured and in situ activated simultaneously to participate in the subsequent conversion under mild conditions, offering valuable compounds. As an alternative to CCS, the CCU has attracted much concern. Although various absorbents have been developed for the CCU strategy, the direct, in situ chemical conversion of the captured CO2 into valuable chemicals remains in its infancies compared with the gaseous CO2 conversion. This review summarizes the recent progress on CO2 capture and in situ catalytic transformation. The contents are introduced according to the absorbent types, in which different reaction type is involved and the transformation mechanism of the captured CO2 and the role of the absorbent in the conversion are especially elucidated. We hope this review can shed light on the transformation of the captured CO2 and arouse broad concern on the CCU strategy.
Collapse
Affiliation(s)
- Hong-Chen Fu
- College of Pharmacy, Nankai University, Tianjin, China.,State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Fei You
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Hong-Ru Li
- College of Pharmacy, Nankai University, Tianjin, China.,State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| | - Liang-Nian He
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, China
| |
Collapse
|
9
|
Schuldt R, Kästner J, Naumann S. Proton Affinities of N-Heterocyclic Olefins and Their Implications for Organocatalyst Design. J Org Chem 2019; 84:2209-2218. [DOI: 10.1021/acs.joc.8b03202] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Robin Schuldt
- Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Johannes Kästner
- Institute for Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Stefan Naumann
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| |
Collapse
|
10
|
Meisner J, Karwounopoulos J, Walther P, Kästner J, Naumann S. The Lewis Pair Polymerization of Lactones Using Metal Halides and N-Heterocyclic Olefins: Theoretical Insights. Molecules 2018; 23:E432. [PMID: 29462873 PMCID: PMC6017504 DOI: 10.3390/molecules23020432] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 02/12/2018] [Accepted: 02/12/2018] [Indexed: 12/05/2022] Open
Abstract
Lewis pair polymerization employing N-Heterocyclic olefins (NHOs) and simple metal halides as co-catalysts has emerged as a useful tool to polymerize diverse lactones. To elucidate some of the mechanistic aspects that remain unclear to date and to better understand the impact of the metal species, computational methods have been applied. Several key aspects have been considered: (1) the formation of NHO-metal halide adducts has been evaluated for eight different NHOs and three different Lewis acids, (2) the coordination of four lactones to MgCl₂ was studied and (3) the deprotonation of an initiator (butanol) was investigated in the presence and absence of metal halide for one specific Lewis pair. It was found that the propensity for adduct formation can be influenced, perhaps even designed, by varying both organic and metallic components. Apart from the NHO backbone, the substituents on the exocyclic, olefinic carbon have emerged as interesting tuning site. The tendency to form adducts is ZnCl₂ > MgCl₂ > LiCl. If lactones coordinate to MgCl₂, the most likely binding mode is via the carbonyl oxygen. A chelating coordination cannot be ruled out and seems to gain importance upon increasing ring-size of the lactone. For a representative NHO, it is demonstrated that in a metal-free setting an initiating alcohol cannot be deprotonated, while in the presence of MgCl₂ the same process is exothermic with a low barrier.
Collapse
Affiliation(s)
- Jan Meisner
- Institute of Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Johannes Karwounopoulos
- Institute of Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Patrick Walther
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Johannes Kästner
- Institute of Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| | - Stefan Naumann
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany.
| |
Collapse
|
11
|
Li W, Huang D, Lyu Y. A comparative computational study of N-heterocyclic olefin and N-heterocyclic carbene mediated carboxylative cyclization of propargyl alcohols with CO 2. Org Biomol Chem 2018; 14:10875-10885. [PMID: 27812589 DOI: 10.1039/c6ob01901c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The carboxylative cyclization of a propargyl alcohol with CO2 mediated by a N-heterocyclic olefin (NHO) or N-heterocyclic carbene (NHC) has been comparatively studied using density functional theory (DFT) calculations. The calculations show that the advantageous catalytic performance of the NHO in the title reaction can be attributed to two aspects: (i) the active site of the NHO extends outside the imidazolium ring, which enhances the reactivity and stability of the [NHOH]+[carbonate]- ionic pair intermediate. Thus, the turnover frequency (TOF)-determining intramolecular cyclization step is kinetically more favorable in the NHO system. (ii) As the basicity of the NHO is weaker than the NHC, deprotonation of the propargyl alcohol by the NHO is relatively more difficult. Consequently, the side reaction of ring-opening transesterification of the α-alkylidene cyclic carbonate with the nucleophilic [NHOH]+[alkoxide]- ionic pair intermediate can be inhibited using the NHO system. The present mechanistic study provides a basis for further application of these promising organocatalysts in more organic transformations.
Collapse
Affiliation(s)
- Weiyi Li
- School of Science, Xihua University, Chengdu, 610039, Sichuan, P. R. China.
| | - Dongfeng Huang
- College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang, Henan 455000, P. R. China
| | - Yajing Lyu
- School of Science, Xihua University, Chengdu, 610039, Sichuan, P. R. China.
| |
Collapse
|
12
|
Feroci M, Chiarotto I, Orsini M, Pandolfi F, Zane D, Inesi A. Electrogenerated N-Heterocyclic Olefins: Stability and Catalytic Ability. ChemElectroChem 2017. [DOI: 10.1002/celc.201700992] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Marta Feroci
- Dept. Fundamental and Applied Sciences for Engineering (SBAI); Sapienza University of Rome; via Castro Laurenziano, 7 00161 Rome Italy
| | - Isabella Chiarotto
- Dept. Fundamental and Applied Sciences for Engineering (SBAI); Sapienza University of Rome; via Castro Laurenziano, 7 00161 Rome Italy
| | - Monica Orsini
- Dept. of Engineering; Università RomaTre; via V. Volterra, 62 00146 Rome Italy
| | - Fabiana Pandolfi
- Dept. Fundamental and Applied Sciences for Engineering (SBAI); Sapienza University of Rome; via Castro Laurenziano, 7 00161 Rome Italy
| | - Daniela Zane
- CNR SMN Istituto per lo Studio dei Materiali Nanostrutturati UOS Sapienza; Via del Castro Laurenziano 7 00161 Roma Italy
| | | |
Collapse
|
13
|
Binuclear Copper(I) Borohydride Complex Containing Bridging Bis(diphenylphosphino) Methane Ligands: Polymorphic Structures of [(µ2-dppm)2Cu2(η2-BH4)2] Dichloromethane Solvate. CRYSTALS 2017. [DOI: 10.3390/cryst7100318] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
14
|
Sabet-Sarvestani H, Izadyar M, Eshghi H. Phosphorus ylides as a new class of compounds in CO2 activation: Thermodynamic and kinetic studies. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.08.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
15
|
Golub IE, Filippov OA, Belkova NV, Gutsul EI, Epstein LM, Rossin A, Peruzzini M, Shubina ES. Competition between the Hydride Ligands of Two Types in Proton Transfer to [{κ3-P-CH3C(CH2CH2PPh2)3}RuH(η2-BH4)]. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700624] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Igor E. Golub
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences (INEOS RAS); 28 Vavilova St 119991 Moscow Russia
- Inorganic Chemistry Department; Peoples' Friendship University of Russia (RUDN University); 6 Miklukho-Maklay St 117198 Moscow Russia
| | - Oleg A. Filippov
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences (INEOS RAS); 28 Vavilova St 119991 Moscow Russia
| | - Natalia V. Belkova
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences (INEOS RAS); 28 Vavilova St 119991 Moscow Russia
| | - Eugenii I. Gutsul
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences (INEOS RAS); 28 Vavilova St 119991 Moscow Russia
| | - Lina M. Epstein
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences (INEOS RAS); 28 Vavilova St 119991 Moscow Russia
| | - Andrea Rossin
- Istituto di Chimica dei Composti Organometallici; Consiglio Nazionale delle Ricerche (ICCOM CNR); Via Madonna del Piano 10 50019 Sesto Fiorentino Italy
| | - Maurizio Peruzzini
- Istituto di Chimica dei Composti Organometallici; Consiglio Nazionale delle Ricerche (ICCOM CNR); Via Madonna del Piano 10 50019 Sesto Fiorentino Italy
| | - Elena S. Shubina
- A. N. Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences (INEOS RAS); 28 Vavilova St 119991 Moscow Russia
| |
Collapse
|
16
|
de Lima Batista AP, de Oliveira-Filho AGS, Galembeck SE. CO2
Sequestration by Triazolylidene-Derived N-Heterocyclic Olefins: A Computational Study. ChemistrySelect 2017. [DOI: 10.1002/slct.201700727] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Ana P. de Lima Batista
- Departamento de Química; Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; Ribeirão Preto - SP Brazil
| | - Antonio G. S. de Oliveira-Filho
- Departamento de Química; Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; Ribeirão Preto - SP Brazil
| | - Sérgio E. Galembeck
- Departamento de Química; Faculdade de Filosofia; Ciências e Letras de Ribeirão Preto; Universidade de São Paulo; Ribeirão Preto - SP Brazil
| |
Collapse
|
17
|
de Lima Batista AP, de Oliveira-Filho AGS, Galembeck SE. Computationally Designed 1,2,4-Triazolylidene-Derived N-Heterocyclic Olefins for CO 2 Capture, Activation, and Storage. ACS OMEGA 2017; 2:299-307. [PMID: 31457230 PMCID: PMC6641026 DOI: 10.1021/acsomega.6b00411] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Accepted: 01/13/2017] [Indexed: 06/10/2023]
Abstract
In this article, triazolylidene-derived N-heterocyclic olefins (trNHOs) are designed using computational quantum tools, and their potential to promote CO2 sequestration is tested and discussed in detail. The low barrier heights related to the trNHO-mediated process indicate that the tailored compounds are very promising for fast CO2 sequestration. The systematic analysis of the presence of distinct substitutes at different N positions of the trNHO ring allows us to rationalize their effect on the carboxylation process and reveal the best N-substituted trNHO systems for CO2 sequestration and improved trNHO carboxylates for faster CO2 capture/release.
Collapse
Affiliation(s)
- Ana Paula de Lima Batista
- Departamento de Química,
Faculdade de Filosofia, Ciências e Letras de Ribeirão
Preto, Universidade de São Paulo, 14040-901 Ribeirão
Preto, SP, Brazil
| | - Antonio G. S. de Oliveira-Filho
- Departamento de Química,
Faculdade de Filosofia, Ciências e Letras de Ribeirão
Preto, Universidade de São Paulo, 14040-901 Ribeirão
Preto, SP, Brazil
| | - Sérgio Emanuel Galembeck
- Departamento de Química,
Faculdade de Filosofia, Ciências e Letras de Ribeirão
Preto, Universidade de São Paulo, 14040-901 Ribeirão
Preto, SP, Brazil
| |
Collapse
|
18
|
Chong CC, Rao B, Ganguly R, Li Y, Kinjo R. Bis(N-heterocyclic olefin) Derivative: An Efficient Precursor for Isophosphindolylium Species. Inorg Chem 2017; 56:8608-8614. [DOI: 10.1021/acs.inorgchem.6b02991] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Che Chang Chong
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, and §NTU-CBC Crystallography
Facility, Nanyang Technological University (NTU), Singapore 637371, Singapore
| | - Bin Rao
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, and §NTU-CBC Crystallography
Facility, Nanyang Technological University (NTU), Singapore 637371, Singapore
| | - Rakesh Ganguly
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, and §NTU-CBC Crystallography
Facility, Nanyang Technological University (NTU), Singapore 637371, Singapore
| | - Yongxin Li
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, and §NTU-CBC Crystallography
Facility, Nanyang Technological University (NTU), Singapore 637371, Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, and §NTU-CBC Crystallography
Facility, Nanyang Technological University (NTU), Singapore 637371, Singapore
| |
Collapse
|
19
|
Finger LH, Guschlbauer J, Harms K, Sundermeyer J. N-Heterocyclic Olefin-Carbon Dioxide and -Sulfur Dioxide Adducts: Structures and Interesting Reactivity Patterns. Chemistry 2016; 22:16292-16303. [DOI: 10.1002/chem.201602973] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Lars H. Finger
- Fachbereich Chemie and Materials Science Centre; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Jannick Guschlbauer
- Fachbereich Chemie and Materials Science Centre; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Klaus Harms
- Fachbereich Chemie and Materials Science Centre; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie and Materials Science Centre; Philipps-Universität Marburg; Hans-Meerwein-Strasse 4 35043 Marburg Germany
| |
Collapse
|
20
|
Saptal VB, Bhanage BM. N-Heterocyclic Olefins as Robust Organocatalyst for the Chemical Conversion of Carbon Dioxide to Value-Added Chemicals. CHEMSUSCHEM 2016; 9:1980-1985. [PMID: 27357432 DOI: 10.1002/cssc.201600467] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Revised: 05/16/2016] [Indexed: 06/06/2023]
Abstract
In this report, the activity of N-heterocyclic olefins (NHOs) as a newly emerging class of organocatalyst is investigated for the chemical fixation of carbon dioxide through reactions with aziridines to form oxazolidinones and the N-formylation of amines with polymethylhydrosiloxane (PMHS) or 9-borabicyclo[3.3.1]nonane (9-BBN) as the reducing agent under mild conditions. The exocyclic carbon atoms of NHOs are highly nucleophilic owing to the electron-donating ability of the two nitrogen atoms. This high nucleophilicity of the NHOs activates CO2 molecules to form zwitterionic NHO-carboxylate (NHO-CO2 ) adducts, which are active in formylation reactions as well as the carboxylation of aziridines to oxazolidinones.
Collapse
Affiliation(s)
- Vitthal B Saptal
- Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai-, 400 019, India
| | - Bhalchandra M Bhanage
- Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai-, 400 019, India. ,
| |
Collapse
|
21
|
Li W, Yang N, Lyu Y. Theoretical Insights into the Catalytic Mechanism of N-Heterocyclic Olefins in Carboxylative Cyclization of Propargyl Alcohol with CO2. J Org Chem 2016; 81:5303-13. [PMID: 27266858 DOI: 10.1021/acs.joc.6b00559] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Weiyi Li
- School
of Science, Xihua University, Chengdu, Sichuan 610039, P. R. China
| | - Na Yang
- Institute
of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621900, P. R. China
| | - Yajing Lyu
- School
of Science, Xihua University, Chengdu, Sichuan 610039, P. R. China
| |
Collapse
|