1
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Liu Q, Teng K. Facile Approach for the Oxidative Enolate Activation of Aliphatic Aldehydes. J Org Chem 2023; 88:2404-2414. [PMID: 36745778 DOI: 10.1021/acs.joc.2c02821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A proline/N-heterocyclic carbene relay catalytic strategy is developed for the oxidative enolate activation of aliphatic aldehydes. A broad scope of electrophiles including oxindole-derived pyrazolones, oxindole-derived α,β-unsaturated esters, and α,β-unsaturated imines are effective as the reactants in the asymmetric [2 + 4] cycloaddition reaction with the alkyl aldehydes bearing different substitution patterns. Structural complex multicyclic chiral products can be afforded in generally excellent yields and enantio- and diastereoselectivities through this approach under similar reaction conditions. Several of the optical pure products afforded from this protocol exhibit excellent antibacterial activities against plant pathogens and are promising in the development of novel pesticides for plant protection.
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Affiliation(s)
- Qian Liu
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
| | - Kunpeng Teng
- State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Huaxi District, Guiyang 550025, China
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2
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Park JH, Lee SB, Koo BJ, Bae HY. β-Aminosulfonyl Fluorides via Water-Accelerated N-Heterocyclic Carbene Catalysis. CHEMSUSCHEM 2022; 15:e202201000. [PMID: 35799476 DOI: 10.1002/cssc.202201000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/06/2022] [Indexed: 06/15/2023]
Abstract
Herein, a water-accelerated, N-heterocyclic carbene (NHC)-catalyzed aza-Michael addition reaction was reported to access β-aminosulfonyl fluorides, which are key hubs of the sulfur(VI) fluoride exchange (SuFEx) reaction. As a crucial reaction medium, water considerably enhanced the reaction rate with excellent chemo- and site-selectivity (up to >99 : 1) compared to conventional solvents. In addition, the late-stage ligation of bioactive molecules with the aliphatic β-amino SuFEx hub was demonstrated. Mechanistic studies on experimental, analytical, and computational approaches support noncovalent activation over NHC catalysis "on-water".
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Affiliation(s)
- Jin Hyun Park
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419 (Republic of, Korea
| | - Sun Bu Lee
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419 (Republic of, Korea
| | - Byeong Jun Koo
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419 (Republic of, Korea
| | - Han Yong Bae
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419 (Republic of, Korea
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3
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Sathyendran S, Senadi GC. An Umpolung Route to Amides from α‐Aminonitriles under Metal‐Free Conditions. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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4
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Liang Q, Hayashi K, Li L, Song D. Dioxygenation of unprotected mesoionic N-heterocyclic olefins. Chem Commun (Camb) 2021; 57:10927-10930. [PMID: 34596194 DOI: 10.1039/d1cc04695k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We report the dioxygenation of mesoionic N-heterocyclic olefins (mNHOs) using molecular dioxygen. For 1,2,3-triazole-derived mNHOs possessing a vinyl proton and at least one acidic C-H group, they are oxidized into the corresponding triazolium benzoate salts, whereas those without vinyl proton or an acidic C-H group are oxidized into triazolium oxide and ketones/aldehydes.
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Affiliation(s)
- Qiuming Liang
- Davenport Chemical Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
| | - Kasumi Hayashi
- Davenport Chemical Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
| | - Longfei Li
- College of Pharmacy, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Datong Song
- Davenport Chemical Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada.
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5
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Harnying W, Sudkaow P, Biswas A, Berkessel A. N-Heterocyclic Carbene/Carboxylic Acid Co-Catalysis Enables Oxidative Esterification of Demanding Aldehydes/Enals, at Low Catalyst Loading. Angew Chem Int Ed Engl 2021; 60:19631-19636. [PMID: 34010504 PMCID: PMC8457137 DOI: 10.1002/anie.202104712] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/10/2021] [Indexed: 01/07/2023]
Abstract
We report the discovery that simple carboxylic acids, such as benzoic acid, boost the activity of N-heterocyclic carbene (NHC) catalysts in the oxidative esterification of aldehydes. A simple and efficient protocol for the transformation of a wide range of sterically hindered α- and β-substituted aliphatic aldehydes/enals, catalyzed by a novel and readily accessible N-Mes-/N-2,4,6-trichlorophenyl 1,2,4-triazolium salt, and benzoic acid as co-catalyst, was developed. A whole series of α/β-substituted aliphatic aldehydes/enals hitherto not amenable to NHC-catalyzed esterification could be reacted at typical catalyst loadings of 0.02-1.0 mol %. For benzaldehyde, even 0.005 mol % of NHC catalyst proved sufficient: the lowest value ever achieved in NHC catalysis. Preliminary studies point to carboxylic acid-induced acceleration of acyl transfer from azolium enolate intermediates as the mechanistic basis of the observed effect.
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Affiliation(s)
- Wacharee Harnying
- Department of Chemistry (Organic Chemistry), University of Cologne, Greinstraße 4, 50939, Cologne, Germany
| | - Panyapon Sudkaow
- Department of Chemistry (Organic Chemistry), University of Cologne, Greinstraße 4, 50939, Cologne, Germany
| | - Animesh Biswas
- Department of Chemistry (Organic Chemistry), University of Cologne, Greinstraße 4, 50939, Cologne, Germany
| | - Albrecht Berkessel
- Department of Chemistry (Organic Chemistry), University of Cologne, Greinstraße 4, 50939, Cologne, Germany
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6
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Harnying W, Sudkaow P, Biswas A, Berkessel A. N‐Heterocyclic Carbene/Carboxylic Acid Co‐Catalysis Enables Oxidative Esterification of Demanding Aldehydes/Enals, at Low Catalyst Loading. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Wacharee Harnying
- Department of Chemistry (Organic Chemistry) University of Cologne Greinstraße 4 50939 Cologne Germany
| | - Panyapon Sudkaow
- Department of Chemistry (Organic Chemistry) University of Cologne Greinstraße 4 50939 Cologne Germany
| | - Animesh Biswas
- Department of Chemistry (Organic Chemistry) University of Cologne Greinstraße 4 50939 Cologne Germany
| | - Albrecht Berkessel
- Department of Chemistry (Organic Chemistry) University of Cologne Greinstraße 4 50939 Cologne Germany
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7
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Tan H, Wang S, Yan Z, Liu J, Wei J, Song S, Jiao N. N‐Heterocyclic Carbene Catalyzed Ester Synthesis from Organic Halides through Incorporation of Oxygen Atoms from Air. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011039] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hui Tan
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Shen‐An Wang
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Zixi Yan
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Jianzhong Liu
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
- State Key Laboratory of Organometallic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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8
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Tan H, Wang S, Yan Z, Liu J, Wei J, Song S, Jiao N. N‐Heterocyclic Carbene Catalyzed Ester Synthesis from Organic Halides through Incorporation of Oxygen Atoms from Air. Angew Chem Int Ed Engl 2020; 60:2140-2144. [DOI: 10.1002/anie.202011039] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 09/23/2020] [Indexed: 11/09/2022]
Affiliation(s)
- Hui Tan
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Shen‐An Wang
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Zixi Yan
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Jianzhong Liu
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Jialiang Wei
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Song Song
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical Sciences Peking University Xue Yuan Rd. 38 Beijing 100191 China
- State Key Laboratory of Organometallic Chemistry Chinese Academy of Sciences Shanghai 200032 China
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9
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Cao J, Gillard R, Jahanbakhsh A, Breugst M, Lupton DW. Enantioselective N-Heterocyclic Carbene Catalysis via Acyl Azolium without Exogenous Oxidants. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02705] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jing Cao
- School of Chemistry, Monash University, Clayton 3800 Victoria, Australia
| | - Rachel Gillard
- School of Chemistry, Monash University, Clayton 3800 Victoria, Australia
| | - Azar Jahanbakhsh
- Department für Chemie, Universität zu Köln, Cologne 50939, Germany
| | - Martin Breugst
- Department für Chemie, Universität zu Köln, Cologne 50939, Germany
| | - David W. Lupton
- School of Chemistry, Monash University, Clayton 3800 Victoria, Australia
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10
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Zou Y, Bonal V, Moles Quintero S, Boj PG, Villalvilla JM, Quintana JA, Li G, Wu S, Jiang Q, Ni Y, Casado J, Díaz‐García MA, Wu J. Perylene‐Fused, Aggregation‐Free Polycyclic Aromatic Hydrocarbons for Solution‐Processed Distributed Feedback Lasers. Angew Chem Int Ed Engl 2020; 59:14927-14934. [DOI: 10.1002/anie.202004789] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Indexed: 12/29/2022]
Affiliation(s)
- Ya Zou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Víctor Bonal
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Sergio Moles Quintero
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Pedro G. Boj
- Departamento Óptica Farmacología y Anatomía, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - José M. Villalvilla
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - José A. Quintana
- Departamento Óptica Farmacología y Anatomía, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Guangwu Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaofei Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Qing Jiang
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yong Ni
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Juan Casado
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - María A. Díaz‐García
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Jishan Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Binhai New City Fuzhou 350207 China
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11
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Zou Y, Bonal V, Moles Quintero S, Boj PG, Villalvilla JM, Quintana JA, Li G, Wu S, Jiang Q, Ni Y, Casado J, Díaz‐García MA, Wu J. Perylene‐Fused, Aggregation‐Free Polycyclic Aromatic Hydrocarbons for Solution‐Processed Distributed Feedback Lasers. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ya Zou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Víctor Bonal
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Sergio Moles Quintero
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - Pedro G. Boj
- Departamento Óptica Farmacología y Anatomía, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - José M. Villalvilla
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - José A. Quintana
- Departamento Óptica Farmacología y Anatomía, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Guangwu Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaofei Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Qing Jiang
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yong Ni
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Juan Casado
- Department of Physical Chemistry University of Malaga Campus de Teations s/n 229071 Malaga Spain
| | - María A. Díaz‐García
- Departamento Física Aplicada, and Instituto Universitario de Materiales de Alicante Universidad de Alicante 03080 Alicante Spain
| | - Jishan Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University, Binhai New City Fuzhou 350207 China
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12
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Yu Y, Wang T, Chiu C, Lu T, Lee D. Pd(OAc)
2
promoted
bis
‐
N
‐heterocyclic carbene‐catalyzed oxidative transformation of aldehydes. J CHIN CHEM SOC-TAIP 2019. [DOI: 10.1002/jccs.201900396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ya‐Han Yu
- Department of ChemistryNational Chung Hsing University Taichung Taiwan
| | - Tsui Wang
- Department of ChemistryNational Chung Hsing University Taichung Taiwan
| | - Chien‐Cheng Chiu
- Department of ChemistryNational Chung Hsing University Taichung Taiwan
| | - Ta‐Jung Lu
- Department of ChemistryNational Chung Hsing University Taichung Taiwan
| | - Dong‐Sheng Lee
- Department of ChemistryNational Chung Hsing University Taichung Taiwan
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13
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Maguire AC, Kumar V, Connon SJ. Highly chemoselective, sterically sensitive NHC-catalysed amine acylation with pyridil. Chem Commun (Camb) 2019; 55:13526-13529. [DOI: 10.1039/c9cc06937b] [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
A new strategy for the protection of amines has been developed involving reaction with pyridil under the influence of N-heterocyclic carbene catalysis.
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Affiliation(s)
- Amy C. Maguire
- School of Chemistry Trinity Biomedical Sciences Institute
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Vikas Kumar
- School of Chemistry Trinity Biomedical Sciences Institute
- Trinity College Dublin
- Dublin 2
- Ireland
| | - Stephen J. Connon
- School of Chemistry Trinity Biomedical Sciences Institute
- Trinity College Dublin
- Dublin 2
- Ireland
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14
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Wu Z, Jiang D, Wang J. Carbene-catalyzed oxidative acylation promoted by an unprecedented oxidant CCl 3CN. Org Chem Front 2019. [DOI: 10.1039/c8qo01420e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An unprecedented example of a NHC-catalyzed acylation reaction is promoted by CCl3CN as an oxidant.
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Affiliation(s)
- Zijun Wu
- School of Pharmaceutical Sciences
- Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education)
- Tsinghua University
- Beijing
- China
| | - Di Jiang
- School of Pharmaceutical Sciences
- Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education)
- Tsinghua University
- Beijing
- China
| | - Jian Wang
- School of Pharmaceutical Sciences
- Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education)
- Tsinghua University
- Beijing
- China
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15
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Wu Z, Wang J. N-Heterocyclic Carbene-Catalyzed Chemoselective S-O Bond Cleavage of Benzenesulfonic Carbamate. Org Lett 2018; 20:7607-7610. [PMID: 30489088 DOI: 10.1021/acs.orglett.8b03338] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
An unprecedented example of NHC-catalyzed chemoselective S-O bond cleavage of dinitrobenzenesulfonic carbamates is described. This protocol features several advantages, including mild reaction conditions, broad substrate scope, and operational simplicity, which allows it to be an attractive synthetic method for hydroxylamine synthesis. Notably, dinitrobenzenesulfonic carbamates not only work as "O" synthons but also serve as an efficient oxidant in this reaction.
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Affiliation(s)
- Zijun Wu
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing , 100084 , China
| | - Jian Wang
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education) , Tsinghua University , Beijing , 100084 , China
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16
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Abstract
N-heterocyclic carbene organocatalysis under oxidizing conditions provides a vast range of various synthetic procedures via diverse mechanisms. The available catalysts, bases, oxidants, and oxidizing methods afford numerous opportunities for developing this branch of organocatalysis. Furthermore, implementation of tandem reactions and cooperative catalysis in the described methodology significantly expands the possibilities of modern organic chemistry. This approach allows the synthesis of different structurally complex and often enantiomerically enriched substances, which can be interesting in terms of biological activity and natural product synthesis. Many esters, amides, thioesters, lactams, lactones, and other cyclic compounds obtained in oxidative or oxygenative reactions promoted by N-heterocyclic carbenes can be interesting precursors in advanced organic synthesis. Sophistication and broad applicability prove that the described synthetic approaches are exceptionally worthy of further development.
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17
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Yang Y, Hou X, Zhang T, Ma J, Zhang W, Tang S, Sun H, Zhang J. Mechanistic Insights into the Nickel-Catalyzed Cross-Coupling Reaction of Benzaldehyde with Benzyl Alcohol via C–H Activation: A Theoretical Investigation. J Org Chem 2018; 83:11905-11916. [DOI: 10.1021/acs.joc.8b01807] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yang Yang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
| | - Xiaoying Hou
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
| | - Tong Zhang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
| | - Junmei Ma
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
| | - Wanqiao Zhang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
| | - Shuwei Tang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
- College of Materials Science and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, People’s Republic of China
| | - Hao Sun
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
- National & Local United Engineering Lab for Power Battery, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
| | - Jingping Zhang
- National & Local United Engineering Lab for Power Battery, Northeast Normal University, Changchun, Jilin 130024, People’s Republic of China
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18
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Superior performance of Co-N/m-C for direct oxidation of alcohols to esters under air. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63058-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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19
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Jiang B, Xu B, Wang M, Li Z, Liu D, Zhang S. Cobalt(II)/
N
,
N′
,
N′′
‐Trihydroxyisocyanuric Acid Catalyzed Aerobic Oxidative Esterification and Amidation of Aldehydes. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800118] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Biao‐Lin Jiang
- School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 Shanxi China
- Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex Systems, Institution of Process EngineeringChinese Academy of Sciences Beijing 100190 China
| | - Bao‐Hua Xu
- Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex Systems, Institution of Process EngineeringChinese Academy of Sciences Beijing 100190 China
| | - Meng‐Liang Wang
- School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 Shanxi China
| | - Zeng‐Xi Li
- College of Chemistry and Chemical EngineeringGraduate University of Chinese Academy of Sciences Beijing 100049 China
| | - Dian‐Sheng Liu
- School of Chemistry and Chemical EngineeringShanxi University Taiyuan 030006 Shanxi China
| | - Suo‐Jiang Zhang
- Beijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and EngineeringState Key Laboratory of Multiphase Complex Systems, Institution of Process EngineeringChinese Academy of Sciences Beijing 100190 China
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20
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Lin JB, Cheng XN, Tian XD, Xu GQ, Luo YC, Xu PF. A C1-symmetric N-heterocyclic carbene catalysed oxidative spiroannulation of isatin-derived enals: highly enantioselective synthesis of spirooxindole δ-lactones. RSC Adv 2018; 8:15444-15447. [PMID: 35539478 PMCID: PMC9080099 DOI: 10.1039/c8ra02009d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 04/02/2018] [Indexed: 01/04/2023] Open
Abstract
A C1-symmetric N-heterocyclic carbene (NHC)-catalysed activation of isatin-derived enals under oxidative conditions was achieved. The in situ generated α,β-unsaturated acyl azolium species was efficiently trapped by 1,3-dicarbonyl compounds via a Michael addition/spiroannualtion cascade, delivering a series of synthetically important spirooxindole δ-lactones with up to 96% enantioselectivity. A NHC-catalysed spiroannulation of isatin-derived enals and 1,3-dicarbonyl compounds has been developed, enabling enantioselective synthesis of synthetically important spirooxindole δ-lactones.![]()
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Affiliation(s)
- Jun-Bing Lin
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xi-Na Cheng
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Xiao-Dong Tian
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Guo-Qiang Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Chun Luo
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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21
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Hu Y, Li B. Efficient and selective palladium-catalyzed direct oxidative esterification of benzylic alcohols under aerobic conditions. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.11.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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22
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Kumar V, Connon SJ. Direct, efficient NHC-catalysed aldehyde oxidative amidation: in situ formed benzils as unconventional acylating agents. Chem Commun (Camb) 2017; 53:10212-10215. [PMID: 28861574 DOI: 10.1039/c7cc05561g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new N-heterocyclic carbene-catalysed oxidative amidation of aldehydes has been developed which converts the aldehyde to a benzil acylating agent in situ. The process uses an air-recyclable oxidant and a nucleophilic co-catalyst and does not require the use of a large excess of either one coupling partner or catalyst.
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Affiliation(s)
- Vikas Kumar
- School of Chemistry Trinity Biomedical Sciences Institute, Trinity College Dublin 152-160 Pearse Street, Dublin 2, Ireland.
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23
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Liu H, Eisen MS. Facile Coupling of Aldehydes with Alcohols: An Evolved Tishchenko Process for the Preparation of Unsymmetrical Esters. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700756] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Heng Liu
- Schulich Faculty of Chemistry; Technion - Israel Institute of Technology; 32000 Haifa City Israel
| | - Moris S. Eisen
- Schulich Faculty of Chemistry; Technion - Israel Institute of Technology; 32000 Haifa City Israel
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24
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Chun S, Chung YK. Transition-Metal-Free Poly(thiazolium) Iodide/1,8-Diazabicyclo[5.4.0]undec-7-ene/Phenazine-Catalyzed Esterification of Aldehydes with Alcohols. Org Lett 2017; 19:3787-3790. [DOI: 10.1021/acs.orglett.7b01617] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Supill Chun
- Department of Chemistry,
College of Natural Sciences, Seoul National University, Seoul 08826, Korea
| | - Young Keun Chung
- Department of Chemistry,
College of Natural Sciences, Seoul National University, Seoul 08826, Korea
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25
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Wang G, Fu Z, Huang W. Access to Amide from Aldimine via Aerobic Oxidative Carbene Catalysis and LiCl as Cooperative Lewis Acid. Org Lett 2017; 19:3362-3365. [PMID: 28654279 DOI: 10.1021/acs.orglett.7b01195] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, an efficient route to amides from aldimines via aza-Breslow intermediates through aerobic oxidative carbene catalysis with LiCl as a cooperative Lewis acid is described. Many of the obtained N-heteroarylamides feature biological activity. Ambient air was used as the sole oxidant and source of oxygen in this catalytically oxidative amidation. This method allows for a broad substrate scope and mild conditions. The aza-Breslow intermediate derivative was isolated and its crystal structure confirmed.
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Affiliation(s)
- Guanjie Wang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China
| | - Zhenqian Fu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China.,Key Laboratory for Organic Electronics and Information Displays, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
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26
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Peixoto D, Figueiredo M, Gawande MB, Corvo MC, Vanhoenacker G, Afonso CAM, Ferreira LM, Branco PS. Developments in the Reactivity of 2-Methylimidazolium Salts. J Org Chem 2017; 82:6232-6241. [DOI: 10.1021/acs.joc.7b00807] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniela Peixoto
- LAQV,
REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Margarida Figueiredo
- LAQV,
REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Manoj B. Gawande
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
27, 783 71 Olomouc, Czech Republic
| | - Marta C. Corvo
- CENIMAT
I3N, Faculdade Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Gerd Vanhoenacker
- Research Institute for Chromatography, President Kennedypark 26, 8500 Kortrijk, Belgium
| | - Carlos A. M. Afonso
- Instituto
de Investigação do Medicamento (iMed.ULisboa), Faculdade
de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Luisa M. Ferreira
- LAQV,
REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Paula S. Branco
- LAQV,
REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
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27
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Wu X, Zhang Y, Wang Y, Ke J, Jeret M, Reddi RN, Yang S, Song BA, Chi YR. Polyhalides as Efficient and Mild Oxidants for Oxidative Carbene Organocatalysis by Radical Processes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611692] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Xingxing Wu
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Yuexia Zhang
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Yuhuang Wang
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Jie Ke
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Martin Jeret
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Rambabu N. Reddi
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Song Yang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering; Ministry of Education; Guizhou University; Huaxi District Guiyang 550025 China
| | - Bao-An Song
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering; Ministry of Education; Guizhou University; Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering; Ministry of Education; Guizhou University; Huaxi District Guiyang 550025 China
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28
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Wu X, Zhang Y, Wang Y, Ke J, Jeret M, Reddi RN, Yang S, Song BA, Chi YR. Polyhalides as Efficient and Mild Oxidants for Oxidative Carbene Organocatalysis by Radical Processes. Angew Chem Int Ed Engl 2017; 56:2942-2946. [DOI: 10.1002/anie.201611692] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Xingxing Wu
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Yuexia Zhang
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Yuhuang Wang
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Jie Ke
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Martin Jeret
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Rambabu N. Reddi
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
| | - Song Yang
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering; Ministry of Education; Guizhou University; Huaxi District Guiyang 550025 China
| | - Bao-An Song
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering; Ministry of Education; Guizhou University; Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry & Biological Chemistry; School of Physical & Mathematical Sciences; Nanyang Technological University; Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering; Key Laboratory of Green Pesticide and Agricultural Bioengineering; Ministry of Education; Guizhou University; Huaxi District Guiyang 550025 China
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29
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Gaspa S, Porcheddu A, De Luca L. Recent developments in oxidative esterification and amidation of aldehydes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.115] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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Xie D, Shen D, Chen Q, Zhou J, Zeng X, Zhong G. N-Heterocyclic Carbene/Lewis Acid Catalyzed Enantioselective Aerobic Annulation of α,β-Unsaturated Aldehydes with 1,3-Dicarbonyl Compounds. J Org Chem 2016; 81:6136-41. [DOI: 10.1021/acs.joc.6b01152] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Danbo Xie
- College of Materials, Chemistry
and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Dan Shen
- College of Materials, Chemistry
and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Qiliang Chen
- College of Materials, Chemistry
and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Jiaqi Zhou
- College of Materials, Chemistry
and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Xiaofei Zeng
- College of Materials, Chemistry
and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
| | - Guofu Zhong
- College of Materials, Chemistry
and Chemical Engineering, Hangzhou Normal University, Hangzhou 310036, China
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31
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Axelsson A, Ta L, Sundén H. Direct Highly Regioselective Functionalization of Carbohydrates: A Three-Component Reaction Combining the Dissolving and Catalytic Efficiency of Ionic Liquids. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600536] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anton Axelsson
- Chemistry and Chemical Engineering; Chalmers University of Technology; Kemivägen 10 41296 Göteborg Sweden
| | - Linda Ta
- Chemistry and Chemical Engineering; Chalmers University of Technology; Kemivägen 10 41296 Göteborg Sweden
| | - Henrik Sundén
- Chemistry and Chemical Engineering; Chalmers University of Technology; Kemivägen 10 41296 Göteborg Sweden
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32
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Porey A, Santra S, Guin J. Direct N-Acylation of Sulfoximines with Aldehydes by N-Heterocyclic Carbene Catalysis under Oxidative Conditions. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600163] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Arka Porey
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road, Jadavpur Kolkata- 700032 India
| | - Surojit Santra
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road, Jadavpur Kolkata- 700032 India
| | - Joyram Guin
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road, Jadavpur Kolkata- 700032 India
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33
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Cheng J, Zhu M, Wang C, Li J, Jiang X, Wei Y, Tang W, Xue D, Xiao J. Chemoselective dehydrogenative esterification of aldehydes and alcohols with a dimeric rhodium(ii) catalyst. Chem Sci 2016; 7:4428-4434. [PMID: 30155090 PMCID: PMC6090528 DOI: 10.1039/c6sc00145a] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 03/27/2016] [Indexed: 01/14/2023] Open
Abstract
A dimeric rhodium(ii) complex catalyses the chemoselective dehydrogenative esterification of aldehydes and alcohols.
Dehydrogenative cross-coupling of aldehydes with alcohols as well as dehydrogentive cross-coupling of primary alcohols to produce esters have been developed using a Rh-terpyridine catalyst. The catalyst demonstrates broad substrate scope and good functional group tolerance, affording esters highly selectively. The high chemoselectivity of the catalyst stems from its preference for dehydrogenation of benzylic alcohols over aliphatic ones. Preliminary mechanistic studies suggest that the active catalyst is a dimeric Rh(ii) species, operating via a mechanism involving metal–base–metal cooperativity.
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Affiliation(s)
- Junjie Cheng
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Meijuan Zhu
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Chao Wang
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Junjun Li
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Xue Jiang
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Yawen Wei
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Weijun Tang
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Dong Xue
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China .
| | - Jianliang Xiao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , 710062 , China . .,Department of Chemistry , University of Liverpool , Liverpool , L69 7ZD , UK .
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34
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Seo HA, Cho YH, Lee YS, Cheon CH. Formation of Amides from Imines via Cyanide-Mediated Metal-Free Aerobic Oxidation. J Org Chem 2015; 80:11993-8. [DOI: 10.1021/acs.joc.5b01922] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hong-Ahn Seo
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Yeon-Ho Cho
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Ye-Sol Lee
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Cheol-Hong Cheon
- Department of Chemistry, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
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35
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Kim YJ, Cheon CH. Metal-Free Aerobic Oxidative Esterification of Aldehydes in the Presence of Cyanide. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10398] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yoo-Jin Kim
- Department of Chemistry; Korea University; Seoul 136701 Republic of Korea
| | - Cheol-Hong Cheon
- Department of Chemistry; Korea University; Seoul 136701 Republic of Korea
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36
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Zeng W, Qi Q, Wu J. Cyclopenta-fused perylene: a new soluble, stable and functionalizable rylene building block. Sci Bull (Beijing) 2015. [DOI: 10.1007/s11434-015-0839-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Zheng Y, Mao J, Rong G, Xu X. A NCS mediated oxidative C-H bond functionalization: direct esterification between a C(sp(3))-H bond and carboxylic acids. Chem Commun (Camb) 2015; 51:8837-40. [PMID: 25921733 DOI: 10.1039/c5cc02424b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A transition metal free oxidative C-H bond functionalization/esterification of α-alkoxy alkanes with acids is described in this report. This method is effectively mediated by NCS instead of traditional oxidants, like TBHP or its derivatives, and directly generates the esterification products in moderate to high yield under mild conditions. This tranformation constitutes a practical and general approach toward various α-acyloxy ethers with broad substrate generality; alkyl-, aryl-, alkenyl- and alkynyl-carboxylic acids are all well tolerated.
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Affiliation(s)
- Yang Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China.
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38
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Levin E, Ivry E, Diesendruck CE, Lemcoff NG. Water in N-heterocyclic carbene-assisted catalysis. Chem Rev 2015; 115:4607-92. [PMID: 25942582 DOI: 10.1021/cr400640e] [Citation(s) in RCA: 182] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Efrat Levin
- †Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Elisa Ivry
- †Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Charles E Diesendruck
- ‡Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
| | - N Gabriel Lemcoff
- †Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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39
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Alanthadka A, Maheswari CU. N-Heterocyclic Carbene-Catalyzed Oxidative Amidation of Aldehydes with Amines. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201400739] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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40
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Zhong W, Liu H, Bai C, Liao S, Li Y. Base-Free Oxidation of Alcohols to Esters at Room Temperature and Atmospheric Conditions using Nanoscale Co-Based Catalysts. ACS Catal 2015. [DOI: 10.1021/cs502101c] [Citation(s) in RCA: 255] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Wei Zhong
- Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Hongli Liu
- Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Cuihua Bai
- Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Shijun Liao
- Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
| | - Yingwei Li
- Key Laboratory of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, People’s Republic of China
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41
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Krylov IB, Vil’ VA, Terent’ev AO. Cross-dehydrogenative coupling for the intermolecular C-O bond formation. Beilstein J Org Chem 2015; 11:92-146. [PMID: 25670997 PMCID: PMC4311763 DOI: 10.3762/bjoc.11.13] [Citation(s) in RCA: 134] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 12/31/2014] [Indexed: 12/11/2022] Open
Abstract
The present review summarizes primary publications on the cross-dehydrogenative C-O coupling, with special emphasis on the studies published after 2000. The starting compound, which donates a carbon atom for the formation of a new C-O bond, is called the CH-reagent or the C-reagent, and the compound, an oxygen atom of which is involved in the new bond, is called the OH-reagent or the O-reagent. Alcohols and carboxylic acids are most commonly used as O-reagents; hydroxylamine derivatives, hydroperoxides, and sulfonic acids are employed less often. The cross-dehydrogenative C-O coupling reactions are carried out using different C-reagents, such as compounds containing directing functional groups (amide, heteroaromatic, oxime, and so on) and compounds with activated C-H bonds (aldehydes, alcohols, ketones, ethers, amines, amides, compounds containing the benzyl, allyl, or propargyl moiety). An analysis of the published data showed that the principles at the basis of a particular cross-dehydrogenative C-O coupling reaction are dictated mainly by the nature of the C-reagent. Hence, in the present review the data are classified according to the structures of C-reagents, and, in the second place, according to the type of oxidative systems. Besides the typical cross-dehydrogenative coupling reactions of CH- and OH-reagents, closely related C-H activation processes involving intermolecular C-O bond formation are discussed: acyloxylation reactions with ArI(O2CR)2 reagents and generation of O-reagents in situ from C-reagents (methylarenes, aldehydes, etc.).
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Affiliation(s)
- Igor B Krylov
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Vera A Vil’
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
| | - Alexander O Terent’ev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow, 119991, Russia
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42
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Mirza-Aghayan M, Zonoubi S, Molaee Tavana M, Boukherroub R. Ultrasound assisted direct oxidative esterification of aldehydes and alcohols using graphite oxide and Oxone. ULTRASONICS SONOCHEMISTRY 2015; 22:359-364. [PMID: 24929791 DOI: 10.1016/j.ultsonch.2014.05.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Revised: 05/18/2014] [Accepted: 05/18/2014] [Indexed: 06/03/2023]
Abstract
A sonochemical procedure for direct oxidative esterification of aldehydes and alcohols using graphite oxide and Oxone in an alcoholic solvent is described. Mild reaction conditions, short reaction times, cost-effectiveness, and facile isolation of the products make the present system as a practical method.
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Affiliation(s)
- Maryam Mirza-Aghayan
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. Box 14335-186, Tehran, Iran.
| | - Somayeh Zonoubi
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. Box 14335-186, Tehran, Iran
| | - Mahdieh Molaee Tavana
- Chemistry and Chemical Engineering Research Center of Iran (CCERCI), P. O. Box 14335-186, Tehran, Iran
| | - Rabah Boukherroub
- Institut de Recherche Interdisciplinaire (IRI, USR 3078), Université Lille 1, Parc de la Haute Borne, 50 Avenue de Halley-BP70478, 59658 Villeneuve d'Ascq, France
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43
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Lu H, Liu JY, Li CG, Lin JB, Liang YM, Xu PF. A new chiral C1-symmetric NHC-catalyzed addition to α-aryl substituted α,β-disubstituted enals: enantioselective synthesis of fully functionalized dihydropyranones. Chem Commun (Camb) 2015; 51:4473-6. [DOI: 10.1039/c5cc00118h] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A new C1-symmetric biarylsaturated imidazolium exhibits a superior ability to enable previously unavailable transformation, and the corresponding fully functionalized dihydropyranones are efficiently synthesized.
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Affiliation(s)
- Hong Lu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jin-Yu Liu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Chen-Guang Li
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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44
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Bortolini O, Chiappe C, Fogagnolo M, Giovannini PP, Massi A, Pomelli CS, Ragno D. An insight into the mechanism of the aerobic oxidation of aldehydes catalyzed by N-heterocyclic carbenes. Chem Commun (Camb) 2014; 50:2008-11. [PMID: 24413829 DOI: 10.1039/c3cc48929a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
N-Heterocyclic carbene catalysis for the aerobic oxidation and esterification of aromatic aldehydes was monitored by ESI-MS (MS/MS) and the key intermediates were intercepted and characterized using the charge-tag strategy.
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Affiliation(s)
- O Bortolini
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy.
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45
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Rajbongshi KK, Sarma MJ, Phukan P. A catalyst-free protocol for direct oxidative esterification of alcohols and aldehydes. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.124] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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46
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Ogawa KA, Boydston AJ. Organocatalyzed Anodic Oxidation of Aldehydes to Thioesters. Org Lett 2014; 16:1928-31. [DOI: 10.1021/ol500459x] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Kelli A. Ogawa
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Andrew J. Boydston
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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47
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Garg T, Rath G, Goyal AK. Comprehensive review on additives of topical dosage forms for drug delivery. Drug Deliv 2014; 22:969-987. [PMID: 24456019 DOI: 10.3109/10717544.2013.879355] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Skin is the largest organ of the human body and plays the most important role in protecting against pathogen and foreign matter. Three important modes such as topical, regional and transdermal are widely used for delivery of various dosage forms. Among these modes, the topical dosage forms are preferred because it provides local therapeutic activity when applied to the skin or mucous membranes. Additives or pharmaceutical excipients (non-drug component of dosage form) are used as inactive ingredients in dosage form or tools for structuring dosage forms. The main use of topical dosage form additives are controling the extent of absorption, maintaining the viscosity, improving the stability as well as organoleptic property and increasing the bulk of the formulation. The overall goal of this article is to provide the clinician with information related to the topical dosage form additives and their current major applications against various diseases.
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Affiliation(s)
- Tarun Garg
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga , Punjab
| | - Goutam Rath
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga , Punjab
| | - Amit K Goyal
- a Department of Pharmaceutics , ISF College of Pharmacy , Moga , Punjab
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48
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Youn SW, Song HS, Park JH. NHC-catalyzed oxidative cyclization reaction for the synthesis of 3-substituted phthalides. Org Biomol Chem 2014; 12:2388-93. [DOI: 10.1039/c3ob42546k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient NHC-catalyzed domino oxidation/oxa-Michael addition reaction of 2-alkenylbenzaldehydes has been developed to afford 3-substituted phthalides bearing a C3-stereogenic center with a broad substrate scope and wide functional group tolerance.
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Affiliation(s)
- So Won Youn
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 133-791, Korea
| | - Hyoung Sub Song
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 133-791, Korea
| | - Jong Hyub Park
- Department of Chemistry and Research Institute for Natural Sciences
- Hanyang University
- Seoul 133-791, Korea
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49
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Samanta RC, Studer A. N-heterocyclic carbene catalysed oxidative esterification of aliphatic aldehydes. Org Chem Front 2014. [DOI: 10.1039/c4qo00164h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aliphatic aldehydes are readily transformed to the corresponding esters by oxidative carbene catalysis.
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Affiliation(s)
- Ramesh C. Samanta
- Organisch-Chemisches Institut and NRW Graduate School of Chemistry
- Westfalische Wilhelms-Universitat
- Munster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut and NRW Graduate School of Chemistry
- Westfalische Wilhelms-Universitat
- Munster, Germany
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50
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Ji M, Wang X, Lim YN, Kang YW, Jang HY. N-Heterocyclic Carbene Catalysed Oxidative Coupling of Aldehydes with Alcohols/Thiols and One-Pot Oxidation/Esterification of Allylic Alcohols. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301337] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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