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Mohammad O, Onwudili JA, Yuan Q. Potential Large-Scale CO 2 Utilisation for Salicylic Acid Production via a Suspension-Based Kolbe-Schmitt Reaction in Toluene. Molecules 2024; 29:2527. [PMID: 38893403 PMCID: PMC11174078 DOI: 10.3390/molecules29112527] [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: 04/24/2024] [Revised: 05/19/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Conversion of CO2 into organic chemicals offers a promising route for advancing the circularity of carbon capture, utilisation, and storage in line with the international 2050 Net Zero agenda. The widely known commercialised chemical fixation of CO2 into organic chemicals is the century-old Kolbe-Schmitt reaction, which carboxylates phenol (via sodium phenoxide) into salicylic acid. The carboxylation reaction is normally carried out between the gas-solid phases in a batch reactor. The mass and heat transfer limitations of such systems require rather long reaction times and a high pressure of CO2 and are often characterised by the low formation of undesirable side products. To address these drawbacks, a novel suspension-based carboxylation method has been designed and carried out in this present study, where sodium phenoxide is dispersed in toluene to react with CO2. Importantly, the addition of phenol played a critical role in promoting the stoichiometric conversion of phenoxide to salicylic acid. Under the optimal conditions of a phenol/phenoxide molar ratio of 2:1 in toluene, a reaction temperature of 225 °C, a CO2 pressure of 30 bar, a reaction time of 2 h, and stirring at 1000 rpm, an impressive salicylic acid molar yield of 92.68% has been achieved. The reaction mechanism behind this has been discussed. This development provides us with the potential to achieve a carboxylation reaction of phenoxide with CO2 more effectively in a continuous reactor. It can also facilitate the large-scale fixing of CO2 into hydroxy aromatic carboxylic acids, which can be used as green organic chemical feedstocks for making various products, including long-lived polymeric materials.
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Affiliation(s)
| | - Jude A. Onwudili
- Energy and Bioproducts Research Institute, College of Engineering and Physical Sciences, Aston University, Birmingham B4 7ET, UK; (O.M.); (Q.Y.)
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2
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Mansfield CR, Quan B, Chirgwin ME, Eduful B, Hughes PF, Neveu G, Sylvester K, Ryan DH, Kafsack BFC, Haystead TAJ, Leahy JW, Fitzgerald MC, Derbyshire ER. Selective targeting of Plasmodium falciparum Hsp90 disrupts the 26S proteasome. Cell Chem Biol 2024; 31:729-742.e13. [PMID: 38492573 PMCID: PMC11031320 DOI: 10.1016/j.chembiol.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 11/09/2023] [Accepted: 02/22/2024] [Indexed: 03/18/2024]
Abstract
The molecular chaperone heat shock protein 90 (Hsp90) has an essential but largely undefined role in maintaining proteostasis in Plasmodium falciparum, the most lethal malaria parasite. Herein, we identify BX-2819 and XL888 as potent P. falciparum (Pf)Hsp90 inhibitors. Derivatization of XL888's scaffold led to the development of Tropane 1, as a PfHsp90-selective binder with nanomolar affinity. Hsp90 inhibitors exhibit anti-Plasmodium activity against the liver, asexual blood, and early gametocyte life stages. Thermal proteome profiling was implemented to assess PfHsp90-dependent proteome stability, and the proteasome-the main site of cellular protein recycling-was enriched among proteins with perturbed stability upon PfHsp90 inhibition. Subsequent biochemical and cellular studies suggest that PfHsp90 directly promotes proteasome hydrolysis by chaperoning the active 26S complex. These findings expand our knowledge of the PfHsp90-dependent proteome and protein quality control mechanisms in these pathogenic parasites, as well as further characterize this chaperone as a potential antimalarial drug target.
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Affiliation(s)
- Christopher R Mansfield
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA
| | - Baiyi Quan
- Department of Chemistry, Duke University, Durham, NC, USA
| | | | - Benjamin Eduful
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Philip F Hughes
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
| | - Gaëlle Neveu
- Department of Microbiology & Immunology, Weill Cornell Medicine, New York, NY, USA
| | - Kayla Sylvester
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA
| | - Daniel H Ryan
- Department of Chemistry, Duke University, Durham, NC, USA
| | - Björn F C Kafsack
- Department of Microbiology & Immunology, Weill Cornell Medicine, New York, NY, USA
| | - Timothy A J Haystead
- Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
| | - James W Leahy
- Department of Chemistry, University of South Florida, Tampa, FL, USA; Department of Molecular Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA; Center for Drug Discovery and Innovation, University of South Florida, Tampa, FL, USA
| | | | - Emily R Derbyshire
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA; Department of Chemistry, Duke University, Durham, NC, USA.
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3
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Luo Y, Huang W. Base-mediated carboxylation of C-nucleophiles with CO 2. Org Biomol Chem 2023; 21:8628-8641. [PMID: 37860946 DOI: 10.1039/d3ob01367g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
Carbon dioxide (CO2) is an available, abundant, and renewable C1 resource, which could be converted into value-added chemicals. Due to its inherent thermodynamic stability and kinetic inertness, it is difficult to realize its efficient utilization. Nevertheless, many elegant strategies for the utilization of CO2 have been developed using Lewis bases, frustrated Lewis pairs, hydroxyl-containing compounds, amino-group-containing compounds or transition metal catalysis. Among them, base-mediated carboxylation of C-nucleophiles is an environmentally friendly strategy for CO2 conversion, which is operationally simple, using low-toxicity bases and economical available promoters, without the use of complex ligands or cocatalysts. This review summarizes related work on the base-mediated carboxylation of C-nucleophiles with CO2, based on the effects of nucleophiles, promoters, additives, and solvents. The types of pronucleophile are categorized as follows: hydrocarbon with C(sp3)-H, C(sp2)-H or C(sp)-H bonds, organosilanes, organotin, organoboron, and N-tosylhydrazones. Typical mechanisms and applications of these carboxylation reactions are also depicted. Moreover, mechanistic comprehension of CO2 activation and conversion at a molecular level aims to further expand the repertoire of carboxylation transformations mediated by bases.
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Affiliation(s)
- Yanlong Luo
- School of Chemical Engineering and Technology, Tianshui Normal University, Tianshui, Gansu 741001, China.
| | - Wenbin Huang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.
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4
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Kuznetsov NY, Maximov AL, Beletskaya IP. Novel Technological Paradigm of the Application of Carbon Dioxide as a C1 Synthon in Organic Chemistry: I. Synthesis of Hydroxybenzoic Acids, Methanol, and Formic Acid. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2022. [DOI: 10.1134/s1070428022120016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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5
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Chen EY, Mandel RM, Milner PJ. Evaluating Solvothermal and Mechanochemical Routes towards the Metal-Organic Framework Mg 2( m-dobdc). CrystEngComm 2022; 24:7292-7297. [PMID: 36776537 PMCID: PMC9910849 DOI: 10.1039/d2ce00739h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metal-organic frameworks bearing coordinatively unsaturated Mg(II) sites are promising materials for gas storage, chemical separations, and drug delivery due to their low molecular weights and lack of toxicity. However, there remains a limited number of such MOFs reported in the literature. Herein, we investigate the gas sorption properties of the understudied framework Mg2(m-dobdc) (dobdc4- = 4,6-dioxido-1,3-benzenedicarboxylate) synthesized under both solvothermal and mechanochemical conditions. Both materials are found to be permanently porous, as confirmed by 77 K N2 adsorption measurements. In particular, Mg2(m-dobdc) synthesized under mechanochemical conditions using exogenous organic base displays one of the highest capacities reported to date (6.14 mmol/g) for CO2 capture in a porous solid under simulated coal flue gas conditions (150 mbar, 40 °C). As such, mechanochemically synthesized Mg2(m-dobdc) represents a promising new framework for applications requiring high gas adsorption capacities in a porous solid.
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Affiliation(s)
- Elena Y. Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Ruth M. Mandel
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
| | - Phillip J. Milner
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14850, United States
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6
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Hang W, Li D, Zou S, Xi C. Visible-Light-Driven Reductive Carboxylation of Benzyl Bromides with Carbon Dioxide Using Formate as Terminal Reductant. J Org Chem 2022; 88:5007-5014. [PMID: 36126282 DOI: 10.1021/acs.joc.2c01840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cheap and available formate can be seen formally as a carbon dioxide radical anion (CO2•-) combined with a hydrogen atom, where the CO2•- is not only a highly active radical but also a very powerful reductant. In this paper, we successfully realized a visible-light-driven carboxylation of benzyl bromides with carbon dioxide to prepare high-value arylacetic acids using potassium formate as a terminal reductant. This reaction is characterized by mild reaction conditions and a wide range of substrates. Moreover, under nitrogen atmosphere, the reaction can also achieve the carboxylation of benzyl bromides utilizing an excess of potassium formate. Mechanistic experiments indicate this carboxylation proceeded through CO2•-, which was generated from the oxidation of 1,4-diazabicyclo[2.2.2]octane with excited photosensitizer Ir(ppy)2(dtbbpy)PF6 in the presence of the potassium formate.
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Affiliation(s)
- Wei Hang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Danyun Li
- Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Song Zou
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China.,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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7
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Yamada T, Sadamitsu Y, Saito K. Development of Carbon Dioxide Incorporation Reactions for Fine Chemicals Synthesis. J SYN ORG CHEM JPN 2022. [DOI: 10.5059/yukigoseikyokaishi.80.724] [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]
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8
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Isfeld KA, Killeen C, Konowalchuk DJ, Davis RL. Exploring the catalytic role of the guanidine TBD in carboxylative cyclizations. Org Biomol Chem 2022; 20:5730-5734. [PMID: 35852820 DOI: 10.1039/d2ob01012g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Employing a combination of mechanistic, kinetic and computational studies we have examined the mechanism of the TBD-catalyzed carboxylative cyclization of indole derivatives. Our studies provide insight into the role of the guanidine superbase TBD in catalyzing C-C bond formation between indole derivatives and CO2.
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Affiliation(s)
- Kaitlin A Isfeld
- Chemistry Department, University of Manitoba, 360 Parker Building, 144 Dysart Road, Winnipeg, Manitoba, Canada R3T 2N2.
| | - Charles Killeen
- Chemistry Department, University of Manitoba, 360 Parker Building, 144 Dysart Road, Winnipeg, Manitoba, Canada R3T 2N2.
| | - Dawson J Konowalchuk
- Chemistry Department, University of Manitoba, 360 Parker Building, 144 Dysart Road, Winnipeg, Manitoba, Canada R3T 2N2.
| | - Rebecca L Davis
- Chemistry Department, University of Manitoba, 360 Parker Building, 144 Dysart Road, Winnipeg, Manitoba, Canada R3T 2N2.
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9
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Shigeno M, Tohara I, Sasaki K, Nozawa-Kumada K, Kondo Y. Combined Brønsted Base-Promoted CO 2 Fixation into Benzylic C-H Bonds of Alkylarenes. Org Lett 2022; 24:4825-4830. [PMID: 35763616 DOI: 10.1021/acs.orglett.2c01986] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Interest in developing methods for direct CO2 fixation into readily available unfunctionalized C-H bonds in organic substances has recently surged. In contrast to the well-studied carboxylations of alkynyl C(sp)-H and aromatic C(sp2)-H bonds, carboxylation of benzylic C(sp3)-H bonds to produce 2-arylacetic acids is limited to photoirradiation reactions and continues to be a challenging issue because of the low chemical reactivity. We herein describe that a combined Brønsted base (i.e., LiO-t-Bu/CsF and LiOCEt3/CsF) achieves benzylic carboxylation of electron-deficient, -neutral, and -rich alkylarenes and enables various functionalities, including fragile ones such as bromide, alkene, alkyne, and carbonyl moieties. Dicarboxylation at the benzylic position is also established. Cs-alkoxide generated in situ acts as a reactive base, as demonstrated in experiments with independently prepared CsO-t-Bu and by 133Cs nuclear magnetic resonance studies.
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Affiliation(s)
- Masanori Shigeno
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Itsuki Tohara
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Keita Sasaki
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kanako Nozawa-Kumada
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Yoshinori Kondo
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
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10
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Rawat A, Dhakla S, Lama P, Pal TK. Fixation of carbon dioxide to aryl/aromatic carboxylic acids. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.101939] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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11
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Shigeno M, Hanasaka K, Tohara I, Izumi K, Yamakoshi H, Kwon E, Nozawa-Kumada K, Kondo Y. Direct C-H Carboxylation Forming Polyfunctionalized Aromatic Carboxylic Acids by Combined Brønsted Bases. Org Lett 2022; 24:809-814. [PMID: 35048709 DOI: 10.1021/acs.orglett.1c03866] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
CO2 fixation into electron-deficient aromatic C-H bonds proceeds with the combined Brønsted bases LiO-t-Bu and LiO-t-Am/CsF/18-crown-6 (t-Am = CEtMe2) under a CO2 atmosphere to afford a variety of polyfunctionalized aromatic carboxylic acids.
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Affiliation(s)
- Masanori Shigeno
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kazuya Hanasaka
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Itsuki Tohara
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Koki Izumi
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Hiroyuki Yamakoshi
- Central Analytical Center, Graduate School of Pharmaceutical Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kanako Nozawa-Kumada
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Science, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Yoshinori Kondo
- Department of Biophysical Chemistry, Graduate School of Pharmaceutical Science, Tohoku University, Aoba, Sendai 980-8578, Japan
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12
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Liu D, Xu Z, Liu M, Fu Y. Mechanistic insights into the rhodium-catalyzed aryl C–H carboxylation. Org Chem Front 2022. [DOI: 10.1039/d1qo01560e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We have conducted an in-depth theoretical exploration of the details for direct C–H bond activation and lactonization of 2-arylphenols.
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Affiliation(s)
- DeGuang Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
| | - ZheYuan Xu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
| | - MingQiang Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
| | - Yao Fu
- Hefei National Laboratory for Physical Sciences at the Microscale, CAS Key Laboratory of Urban Pollutant Conversion, Anhui Province Key Laboratory of Biomass Clean Energy, iChEM, University of Science and Technology of China, Hefei 230026, China
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13
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Wang JJ, Bai R, Yang MQ, Chen ZY, Wang MD, Zhao Q, Lin G, Fu JG, Feng CG. Total Synthesis of (-)-Amathaspiramide A via One-pot Aldol Addition/Transamidification Reaction. Org Chem Front 2022. [DOI: 10.1039/d2qo00032f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The total synthesis of (-)-amathaspiramide A was accomplished through an efficient construction of chiral aza-spirobicyclic core by aldol addition/transamidification cascade. The scope of the efficient construction methodology was investigated. Configuration...
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14
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Shi JB, Bu Q, Liu BY, Dai B, Liu N. Organocatalytic Strategy for the Fixation of CO 2 via Carboxylation of Terminal Alkynes. J Org Chem 2021; 86:1850-1860. [PMID: 33356265 DOI: 10.1021/acs.joc.0c02673] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An organocatalytic strategy for the direct carboxylation of terminal alkynes with CO2 has been developed. The combined use of a bifunctional organocatalyst and Cs2CO3 resulted in a robust catalytic system for the preparation of a range of propiolic acid derivatives in high yields with broad substrate scope using CO2 at atmospheric pressure under mild temperatures (60 °C). This work has demonstrated that this organocatalytic method offers a competitive alternative to metal catalysis for the carboxylation of terminal alkynes and CO2. In addition, this protocol was suitable for the three-component carboxylation of terminal alkynes, alkyl halides, and CO2.
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Affiliation(s)
- Jun-Bin Shi
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, P. R. China
| | - Qingqing Bu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, P. R. China
| | - Bin-Yuan Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, P. R. China.,Hebei Key Laboratory of Functional Polymers, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P. R. China
| | - Bin Dai
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, P. R. China
| | - Ning Liu
- School of Chemistry and Chemical Engineering, Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, North Fourth Road, Shihezi, Xinjiang 832003, P. R. China
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15
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Shigeno M, Kondo Y, Sasaki K, Hanasaka K, Tohara I, Nozawa-Kumada K. Combined Brønsted-Base-Mediated Direct C-H Carboxylation of Heteroarenes with CO2. HETEROCYCLES 2021. [DOI: 10.3987/rev-20-sr(k)6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Hang W, Yi Y, Xi C. Cobalt‐Catalyzed Reductive Carboxylation of Aryl Bromides with Carbon Dioxide. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000301] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wei Hang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of ChemistryTsinghua University Beijing 100084 People's Republic of China
| | - Yaping Yi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of ChemistryTsinghua University Beijing 100084 People's Republic of China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of ChemistryTsinghua University Beijing 100084 People's Republic of China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 People's Republic of China
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17
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Shigeno M, Tohara I, Nozawa-Kumada K, Kondo Y. Direct C-2 Carboxylation of 3-Substituted Indoles Using a Combined Brønsted Base Consisting of LiO- t
Bu/CsF/18-crown-6. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000272] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Masanori Shigeno
- Department of Biophysical Chemistry; Graduate School of Pharmaceutical Science; Tohoku University; 6-3 Aoba 980-8578 Sendai Japan
| | - Itsuki Tohara
- Department of Biophysical Chemistry; Graduate School of Pharmaceutical Science; Tohoku University; 6-3 Aoba 980-8578 Sendai Japan
| | - Kanako Nozawa-Kumada
- Department of Biophysical Chemistry; Graduate School of Pharmaceutical Science; Tohoku University; 6-3 Aoba 980-8578 Sendai Japan
| | - Yoshinori Kondo
- Department of Biophysical Chemistry; Graduate School of Pharmaceutical Science; Tohoku University; 6-3 Aoba 980-8578 Sendai Japan
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