1
|
Shen D, Zhong F, Ren T, Li L, Li Z, Yin J, Gong P, Zhang F, Lv C, Chao M. Alkyne Oxidation by a Vitamin B2-Based Photocatalytic System with Both H 2O and O 2 as the Oxygen Source. J Org Chem 2023; 88:15270-15281. [PMID: 37852799 DOI: 10.1021/acs.joc.3c01760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
The employment of readily available photocatalysts and green oxygen atom sources is recognized as a promising strategy to develop sustainable catalysis for oxidation reactions. We herein reported a sacrificial reagent-free system consisting of riboflavin tetraacetate (RFT), an ester of natural vitamin B2 as the photocatalyst, and Sc(OTf)3 and NaCl as the cocatalysts for alkyne oxidation under blue light or even sunlight irradiation to produce 1,2-diketone in which the oxygen atoms were from both water and molecular oxygen, respectively. A major Cl-/Cl• cycle was proposed to be involved and achieved by the excited [RFT-2Sc3+]* complex via single electron transfer for the first time, distinguished from the OCl- active species by a two-electron process in previous flavin-halide photo-oxidation systems.
Collapse
Affiliation(s)
- Duyi Shen
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000, P. R. China
| | - Fubi Zhong
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Ting Ren
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Linghui Li
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Zihan Li
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Junzhong Yin
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Peiwei Gong
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Fanjun Zhang
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Chengwei Lv
- College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, P. R. China
| | - Mianran Chao
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| |
Collapse
|
2
|
Ramos-Martín M, Ríos-Lombardía N, González-Sabín J, García-Garrido SE, Concellón C, Presa Soto A, Del Amo V, García-Álvarez J. Fe III -Based Eutectic Mixtures as Multi-task and Reusable Reaction Media for Efficient and Selective Conversion of Alkynes into Carbonyl Compounds. Chemistry 2023; 29:e202301736. [PMID: 37439586 DOI: 10.1002/chem.202301736] [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: 05/31/2023] [Revised: 07/12/2023] [Accepted: 07/13/2023] [Indexed: 07/14/2023]
Abstract
An efficient, simple and general protocol for the selective hydration of terminal alkynes into the corresponding methyl ketones has been developed by using a cheap, easy-to-synthesise and sustainable FeIII -based eutectic mixture [FeCl3 ⋅ 6H2 O/Gly (3 : 1)] as both promoter and solvent for the hydration reaction, working: i) under mild (45 °C) and bench-type reaction conditions (air); and ii) in the absence of ligands, co-catalysts, co-solvents or toxic, non-abundant and expensive noble transition metals (Au, Ru, Pd). When the final methyl ketones are solid/insoluble in the eutectic mixture, the hydration reaction takes place in 30 min, and the obtained methyl ketones can be isolated by simply decanting the liquid FeIII -DES, allowing the direct isolation of the desired ketones without VOC solvents. By using this straightforward and simple isolation protocol, we have been able to recycle the FeIII -based eutectic mixture system up to eight consecutive times. Furthermore, the FeIII -eutectic mixture is able to promote the selective and efficient formal oxidation of internal alkynes into 1,2-diketones, with the possibility of recycling this system up to three consecutive times. Preliminary investigations into a possible mechanism for the oxidation of the internal alkynes seem to indicate that it proceeds through the formation of the corresponding methyl ketones and α-chloroketones.
Collapse
Affiliation(s)
- Marina Ramos-Martín
- Laboratorio de Química Sintética Sostenible (QuimSinSos), Departamento de Química Orgánica e Inorgánica, (IUQOEM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad de Oviedo, E33071, Oviedo, Spain)
| | - Nicolas Ríos-Lombardía
- Laboratorio de Química Sintética Sostenible (QuimSinSos), Departamento de Química Orgánica e Inorgánica, (IUQOEM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad de Oviedo, E33071, Oviedo, Spain)
- Entrechem SL, Vivero Ciencias de la Salud, Colegio Santo Domingo de Guzmán s/n, 33011, Oviedo, Spain
| | - Javier González-Sabín
- Entrechem SL, Vivero Ciencias de la Salud, Colegio Santo Domingo de Guzmán s/n, 33011, Oviedo, Spain
| | - Sergio E García-Garrido
- Laboratorio de Química Sintética Sostenible (QuimSinSos), Departamento de Química Orgánica e Inorgánica, (IUQOEM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad de Oviedo, E33071, Oviedo, Spain)
| | - Carmen Concellón
- Laboratorio de Química Sintética Sostenible (QuimSinSos), Departamento de Química Orgánica e Inorgánica, (IUQOEM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad de Oviedo, E33071, Oviedo, Spain)
| | - Alejandro Presa Soto
- Laboratorio de Química Sintética Sostenible (QuimSinSos), Departamento de Química Orgánica e Inorgánica, (IUQOEM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad de Oviedo, E33071, Oviedo, Spain)
| | - Vicente Del Amo
- Laboratorio de Química Sintética Sostenible (QuimSinSos), Departamento de Química Orgánica e Inorgánica, (IUQOEM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad de Oviedo, E33071, Oviedo, Spain)
| | - Joaquín García-Álvarez
- Laboratorio de Química Sintética Sostenible (QuimSinSos), Departamento de Química Orgánica e Inorgánica, (IUQOEM), Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Química, Universidad de Oviedo, E33071, Oviedo, Spain)
| |
Collapse
|
3
|
Mondal S, Chatterjee N, Maity S. Recent Developments on Photochemical Synthesis of 1,n-Dicarbonyls. Chemistry 2023; 29:e202301147. [PMID: 37335758 DOI: 10.1002/chem.202301147] [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: 04/11/2023] [Revised: 06/19/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
1,n-dicarbonyls are one of the most fascinating chemical feedstocks finding abundant usage in the field of pharmaceuticals. Besides, they are utilized in a plethora of synthesis in general synthetic organic chemistry. A number of 'conventional' methods are available for their synthesis, such as the Stetter reaction, Baker-Venkatraman rearrangement, oxidation of vicinal diols, and oxidation of deoxybenzoins, synonymous with unfriendly reagents and conditions. In the last 15 years or so, photocatalysis has taken the world of synthetic organic chemistry by a remarkable renaissance. It is fair to say now that everybody loves the light and photoredox chemistry has opened a new gateway to organic chemists towards milder, more simpler alternatives to the previously available methods, allowing access to many sensitive reactions and products. In this review, we present the readers with the photochemical synthesis of a variety of 1,n-dicarbonyls. Diverse photocatalytic pathways to these fascinating molecules have been discussed, placing special emphasis on the mechanisms, giving the reader an opportunity to find all these significant developments in one place.
Collapse
Affiliation(s)
- Subhashis Mondal
- Department of Chemistry & Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| | - Nirbhik Chatterjee
- Department of Chemistry, Kanchrapara College, North 24 Parganas, 743145, West Bengal, India
| | - Soumitra Maity
- Department of Chemistry & Chemical Biology, Indian Institute of Technology (ISM), Dhanbad, 826004, Jharkhand, India
| |
Collapse
|
4
|
Visible-light-induced photocatalytic C H arylation-oxidation of vinylarenes: Facile access to (un)symmetrical 1,2-diarylethane-1,2-diones in water. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114372] [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]
|
5
|
Feng Q, Wang Y, Zheng B, Huang S. Electrochemical Oxidative Cleavage of Alkynes to Carboxylic Acids. Org Lett 2023; 25:293-297. [PMID: 36587377 DOI: 10.1021/acs.orglett.2c04204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A sustainable method for converting terminal alkynes into their corresponding carboxylic acids is reported using synthetic electrolysis in an undivided cell at room temperature. This protocol, avoiding transition metal catalysis and stoichiometric chemical oxidants, tolerates a variety of aryl, heteroaryl, and alkyl akynes. Preliminary mechanistic studies demonstrate that sodium nitrite serves a triple role as the electrolyte, nitryl radical precursor, and a nitrosating reagent.
Collapse
Affiliation(s)
- Qingyuan Feng
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Yamin Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| | - Binnan Zheng
- Ningxia Best Pharmaceutical Chemical Co., Ltd., Yinchuan 750411, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, Nanjing 210037, China
| |
Collapse
|
6
|
Glaser F, Wenger OS. Sensitizer-controlled photochemical reactivity via upconversion of red light. Chem Sci 2022; 14:149-161. [PMID: 36605743 PMCID: PMC9769107 DOI: 10.1039/d2sc05229f] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/21/2022] [Indexed: 12/02/2022] Open
Abstract
By combining the energy input from two red photons, chemical reactions that would normally require blue or ultraviolet irradiation become accessible. Key advantages of this biphotonic excitation strategy are that red light usually penetrates deeper into complex reaction mixtures and causes less photo-damage than direct illumination in the blue or ultraviolet. Here, we demonstrate that the primary light-absorber of a dual photocatalytic system comprised of a transition metal-based photosensitizer and an organic co-catalyst can completely alter the reaction outcome. Photochemical reductions are achieved with a copper(i) complex in the presence of a sacrificial electron donor, whereas oxidative substrate activation occurs with an osmium(ii) photosensitizer. Based on time-resolved laser spectroscopy, this changeover in photochemical reactivity is due to different underlying biphotonic mechanisms. Following triplet energy transfer from the osmium(ii) photosensitizer to 9,10-dicyanoanthracene (DCA) and subsequent triplet-triplet annihilation upconversion, the fluorescent singlet excited state of DCA triggers oxidative substrate activation, which initiates the cis to trans isomerization of an olefin, a [2 + 2] cycloaddition, an aryl ether to ester rearrangement, and a Newman-Kwart rearrangement. This oxidative substrate activation stands in contrast to the reactivity with a copper(i) photosensitizer, where photoinduced electron transfer generates the DCA radical anion, which upon further excitation triggers reductive dehalogenations and detosylations. Our study provides the proof-of-concept for controlling the outcome of a red-light driven biphotonic reaction by altering the photosensitizer, and this seems relevant in the greater context of tailoring photochemical reactivities.
Collapse
Affiliation(s)
- Felix Glaser
- Department of Chemistry, University of BaselSt. Johanns-Ring 194056 BaselSwitzerland
| | - Oliver S. Wenger
- Department of Chemistry, University of BaselSt. Johanns-Ring 194056 BaselSwitzerland
| |
Collapse
|
7
|
Echemendía R, de Jesus MP, Furniel LG, Day DP, Burtoloso ACB. Molecular Iodine Mediated Oxidation of Arylated α‐Carbonyl Sulfoxonium Ylides to 1,2‐Dicarbonyl Containing Compounds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Radell Echemendía
- University of Sao Paulo: Universidade de Sao Paulo Physical Chemistry BRAZIL
| | - Matheus P. de Jesus
- University of Sao Paulo: Universidade de Sao Paulo Physical Chemistry BRAZIL
| | - Lucas G. Furniel
- University of Sao Paulo: Universidade de Sao Paulo Physical Chemistry BRAZIL
| | - David P Day
- University of Sao Paulo: Universidade de Sao Paulo Physical Chemistry BRAZIL
| | - Antonio Carlos Bender Burtoloso
- UNIVERSITY OF SÃO PAULO PHYSICAL CHEMISTRY Avenida João Dagnone, 1100, Loteamento Habitacional São Carlos 1INSTITUTO DE QUIMICA DE SAO CARLOS, UNIVERSIDADE DE SAO PAULO, CAMPUS 2 13563-120 SÃO CARLOS BRAZIL
| |
Collapse
|
8
|
Arepally S, Nandhakumar P, González-Montiel GA, Dzhaparova A, Kim G, Ma A, Nam KM, Yang H, Ha-Yeon Cheong P, Park JK. Unified Electrochemical Synthetic Strategy for [2 + 2 + 2] Cyclotrimerizations: Construction of 1,3,5- and 1,2,4-Trisubstituted Benzenes from Ni(I)-Mediated Reduction of Alkynes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Sagar Arepally
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Ponnusamy Nandhakumar
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | | | - Alina Dzhaparova
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Gyeongho Kim
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Ahyeon Ma
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Ki Min Nam
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Haesik Yang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| | - Paul Ha-Yeon Cheong
- Department of Chemistry, Oregon State University, Corvallis 97331, United States
| | - Jin Kyoon Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Korea
| |
Collapse
|
9
|
Wang B, Mccabe G, Parrish M, Singh J, Zelller M, Deng Y. Organic Photoredox Catalyzed Direct Hydroamination of Ynamides with Azoles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ban Wang
- Indiana University Purdue University at Indianapolis UNITED STATES
| | - Gavin Mccabe
- Indiana University Purdue University Indianapolis UNITED STATES
| | | | - Jujhar Singh
- Indiana University Purdue University Indianapolis UNITED STATES
| | | | - Yongming Deng
- Indiana University Purdue University at Indianapolis UNITED STATES
| |
Collapse
|
10
|
Song J, Zhang K, Huang Z, Zhao J, Yang Z, Zong L, Chen J, Xie C, Jia X. A porous organic polymer supported Pd/Cu bimetallic catalyst for heterogeneous oxidation of alkynes to 1,2-diketones. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02002a] [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 reusable Pd/Cu bimetal-loaded porous organic polymer (Pd/Cu@POP–POPh3) has been developed for heterogeneous oxidation of various alkynes to afford the corresponding 1,2-diketones in high to excellent yields.
Collapse
Affiliation(s)
- Jiaxin Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Kai Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Zhongye Huang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Jinyu Zhao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Zhengyi Yang
- Chang-Kung Chuang Institute, and, Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, P.R. China
| | - Lingbo Zong
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Jianbin Chen
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, P. R. China
| | - Congxia Xie
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Xiaofei Jia
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| |
Collapse
|
11
|
Tang C, Qiu X, Cheng Z, Jiao N. Molecular oxygen-mediated oxygenation reactions involving radicals. Chem Soc Rev 2021; 50:8067-8101. [PMID: 34095935 DOI: 10.1039/d1cs00242b] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Molecular oxygen as a green, non-toxic and inexpensive oxidant has displayed lots of advantages compared with other oxidants towards more selective, sustainable, and environmentally benign organic transformations. The oxygenation reactions which employ molecular oxygen or ambient air as both an oxidant and an oxygen source provide an efficient route to the synthesis of oxygen-containing compounds, and have been demonstrated in practical applications such as pharmaceutical synthesis and late-stage functionalization of complex molecules. This review article introduces the recent advances of radical processes in molecular oxygen-mediated oxygenation reactions. Reaction scopes, limitations and mechanisms are discussed based on reaction types and catalytic systems. Conclusions and perspectives are also given in the end.
Collapse
Affiliation(s)
- Conghui Tang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, China.
| | - Xu Qiu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Zengrui Cheng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China. and State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
12
|
Shen D, Wang H, Zheng Y, Zhu X, Gong P, Wang B, You J, Zhao Y, Chao M. Catalyst-Free and Transition-Metal-Free Approach to 1,2-Diketones via Aerobic Alkyne Oxidation. J Org Chem 2021; 86:5354-5361. [PMID: 33764062 DOI: 10.1021/acs.joc.0c03010] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A catalyst-free and transition-metal-free method for the synthesis of 1,2-diketones from aerobic alkyne oxidation was reported. The oxidation of various internal alkynes, especially more challenging aryl-alkyl acetylenes, proceeded smoothly with inexpensive, easily handled, and commercially available potassium persulfate and an ambient air balloon, achieving the corresponding 1,2-diketones with up to 85% yields. Meanwhile, mechanistic studies indicated a radical process, and the two oxygen atoms in the 1,2-diketons were most likely from persulfate salts and molecular oxygen, respectively, rather than water.
Collapse
Affiliation(s)
- Duyi Shen
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Hongyan Wang
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Yanan Zheng
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Xinjing Zhu
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Peiwei Gong
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Bin Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Jinmao You
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China.,Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, P. R. China
| | - Yulei Zhao
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| | - Mianran Chao
- Key Laboratory of Life-Organic Analysis of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China
| |
Collapse
|
13
|
Dong J, Fu D, Sheng D, Wang J, Xu J. Direct oxidation of N-ynylsulfonamides into N-sulfonyloxoacetamides with DMSO as a nucleophilic oxidant. RSC Adv 2021; 11:40243-40252. [PMID: 35494160 PMCID: PMC9044841 DOI: 10.1039/d1ra04816c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 12/13/2021] [Indexed: 11/21/2022] Open
Abstract
N-Arylethynylsulfonamides are oxidized into N-sulfonyl-2-aryloxoacetamides directly and efficiently with dimethyl sulfoxide (DMSO) as both an oxidant and solvent with microwave assistance. DFT calculations indicate that DMSO nucleophilically attacks the ethylic triple bond and transfers its oxygen atom to the triple bond to form zwitterionic anionic N-sulfonyliminiums to trigger the reaction. Then it nucleophilically attacks the generated iminium intermediates to accomplish the oxidation via the second oxygen atom transfer. The current method provides a straightforward and efficient strategy to transform various N-arylethynylsulfonamides into N-sulfonyl-2-aryloxoacetamides, sulfonyl oxoacetimides, without any other electrophilic activators or oxidants. Microwave-assisted direct oxidation of N-arylethynylsulfonamides with DMSO as a nucleophilic oxidant and solvent affords N-sulfonyl-2-aryloxoacetamides without any other additional electrophilic activators or oxidants.![]()
Collapse
Affiliation(s)
- Jun Dong
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
- School of Chemistry and Environmental Engineering, Yancheng Teachers University, Yancheng 224007, People's Republic of China
| | - Duo Fu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Dongning Sheng
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jiayi Wang
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Jiaxi Xu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| |
Collapse
|
14
|
Gujjarappa R, Vodnala N, Kandpal A, Roy L, Gupta S, Malakar CC. C sp–C sp bond cleavage and fragment coupling: a transition metal-free “extrusion and recombination” approach towards synthesis of 1,2-diketones. Org Chem Front 2021. [DOI: 10.1039/d1qo00848j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A metal-free strategy for C–C bond activation of 1,3-diynes has been established via an “extrusion and recombination” approach to derive structurally important 1,2-diketones in good yields with excellent selectivity.
Collapse
Affiliation(s)
- Raghuram Gujjarappa
- Department of Chemistry, National Institute of Technology Manipur, Langol, Imphal 795004, Manipur, India
| | - Nagaraju Vodnala
- Department of Chemistry, National Institute of Technology Manipur, Langol, Imphal 795004, Manipur, India
- Department of Chemistry, Multi-storey building, HauzKhas, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - Ashish Kandpal
- Institute of Chemical Technology Mumbai – IOC Odisha Campus Bhubaneswar, IIT Kharagpur Extension Centre, Bhubaneswar 751013, India
| | - Lisa Roy
- Institute of Chemical Technology Mumbai – IOC Odisha Campus Bhubaneswar, IIT Kharagpur Extension Centre, Bhubaneswar 751013, India
| | - Sreya Gupta
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, Chunilal Bhawan, 168, Maniktala Main Road, Kolkata 700054, India
| | - Chandi C. Malakar
- Department of Chemistry, National Institute of Technology Manipur, Langol, Imphal 795004, Manipur, India
| |
Collapse
|
15
|
Chen L, Zhang L, Tian Y, Li J, Liu Y. Copper/Iodine‐Cocatalyzed C‐C Cleavage of 1,3‐Dicarbonyl Compounds Toward 1,2‐Dicarbonyl Compounds. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000795] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Li‐Sha Chen
- Occupational Medicine Monitoring Station Institute of Occupational Medicine of Jiangxi 330006 Nanchang China
| | - Lu‐Bing Zhang
- Occupational Medicine Monitoring Station Institute of Occupational Medicine of Jiangxi 330006 Nanchang China
| | - Yue Tian
- Occupational Medicine Monitoring Station Institute of Occupational Medicine of Jiangxi 330006 Nanchang China
| | - Jin‐Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong University 330063 Nanchang China
| | - Yong‐Quan Liu
- Occupational Medicine Monitoring Station Institute of Occupational Medicine of Jiangxi 330006 Nanchang China
| |
Collapse
|
16
|
Lu Y, Luo M, Hu M, Li Y, Li J. Dimethyl Sulfoxide as an Oxygen Atom Source Enabled Tandem Conversion of 2‐Alkynyl Carbonyls to 1,2‐Dicarbonyls. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000066] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuan Lu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Mu‐Jia Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Ming Hu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Yang Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
| | - Jin‐Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources RecycleNanchang Hangkong University Nanchang 330063 People's Republic of China
- State Key Laboratory of Chemo/Biosensing and ChemometricsHunan University Changsha 410082 People's Republic of China
- State Key Laboratory of Applied Organic ChemistryLanzhou University Lanzhou 730000 People's Republic of China
| |
Collapse
|
17
|
Gujjarappa R, Vodnala N, Putta V, Ganga Reddy V, Malakar CC. Conversion of alkynes into 1,2-diketones using HFIP as sacrificial hydrogen donor and DMSO as dihydroxylating agent. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151588] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
|
18
|
Zhang Y, Lou J, Li M, Yuan Z, Rao Y. Emodin as a novel organic photocatalyst for selective oxidation of sulfides under mild conditions. RSC Adv 2020; 10:19747-19750. [PMID: 35520433 PMCID: PMC9054162 DOI: 10.1039/d0ra02702b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/18/2020] [Indexed: 12/14/2022] Open
Abstract
Herein, we have developed naturally-occurring Emodin, which is commercially available at low-cost, as a novel organic photocatalyst for the first time. Emodin was successfully employed in the selective oxidation of sulfides promoted by visible-light, delivering valuable sulfoxides with high efficiency. Mechanistic investigations suggested both single-electron transfer (SET) and energy transfer (EnT) pathways might be involved in the oxidation reaction. Naturally-occurring Emodin was successfully employed in the selective oxidation of sulfides promoted by visible-light as a novel organic photocatalyst for the first time.![]()
Collapse
Affiliation(s)
- Yan Zhang
- Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi 214122
| | - Jiangli Lou
- School of Pharmaceutical Science
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Min Li
- Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi 214122
| | - Zhenbo Yuan
- Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi 214122
| | - Yijian Rao
- Key Laboratory of Carbohydrate Chemistry and Biotechnology
- Ministry of Education
- School of Biotechnology
- Jiangnan University
- Wuxi 214122
| |
Collapse
|
19
|
Bansode AH, Suryavanshi G. Iodine-Mediated Oxidative Rearrangement of α,β-Unsaturated Diaryl Ketones: A Facile Access to 1,2-Diaryl Diketones. ACS OMEGA 2019; 4:9636-9644. [PMID: 31460054 PMCID: PMC6648810 DOI: 10.1021/acsomega.9b00833] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/17/2019] [Indexed: 05/03/2023]
Abstract
A metal-free oxidative rearrangement was explored for the synthesis of 1,2-diaryl diketones by utilizing α,β-unsaturated diaryl ketones and I2/TBHP in good to high yields. The reaction proceeds via oxidative aryl migration, followed by C-C bond cleavage. A simple and high-yielding protocol was developed for the synthesis of a wide range of 1,2-diaryl diketones, which are the backbone for a variety of medicinally important molecules.
Collapse
Affiliation(s)
- Ajay H. Bansode
- Chemical
Engineering & Process Development Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
| | - Gurunath Suryavanshi
- Chemical
Engineering & Process Development Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
- Academy
of Scientific and Innovative Research (AcSIR), New Delhi 110 025, India
| |
Collapse
|
20
|
Markham JP, Wang B, Stevens ED, Burris SC, Deng Y. ortho
‐Alkylation of Pyridine
N
‐Oxides with Alkynes by Photocatalysis: Pyridine
N
‐Oxide as a Redox Auxiliary. Chemistry 2019; 25:6638-6644. [DOI: 10.1002/chem.201901065] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Jonathan P. Markham
- Chemistry DepartmentWestern Kentucky University 1906 College Heights Boulevard Bowling Green Kentucky 42101 USA
| | - Ban Wang
- Chemistry DepartmentWestern Kentucky University 1906 College Heights Boulevard Bowling Green Kentucky 42101 USA
| | - Edwin D. Stevens
- Chemistry DepartmentWestern Kentucky University 1906 College Heights Boulevard Bowling Green Kentucky 42101 USA
| | - Stuart C. Burris
- Chemistry DepartmentWestern Kentucky University 1906 College Heights Boulevard Bowling Green Kentucky 42101 USA
| | - Yongming Deng
- Chemistry DepartmentWestern Kentucky University 1906 College Heights Boulevard Bowling Green Kentucky 42101 USA
| |
Collapse
|
21
|
Vishwakarma RK, Kumar S, Sharma AK, Singh R, Singh KN. An Efficient Synthesis of 1,2‐Diketones by Oxidative Cross‐coupling of Alkynes and Aryl Triazenes using Copper Catalysis. ChemistrySelect 2019. [DOI: 10.1002/slct.201901002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Ramesh Kumar Vishwakarma
- Department of Chemistry (Centre of Advanced Study)Institute of ScienceBanaras Hindu University Varanasi 221005 India
| | - Saurabh Kumar
- Department of Chemistry (Centre of Advanced Study)Institute of ScienceBanaras Hindu University Varanasi 221005 India
| | - Anup Kumar Sharma
- Department of Chemistry (Centre of Advanced Study)Institute of ScienceBanaras Hindu University Varanasi 221005 India
| | - Rahul Singh
- Department of Chemistry (Centre of Advanced Study)Institute of ScienceBanaras Hindu University Varanasi 221005 India
| | - Krishna Nand Singh
- Department of Chemistry (Centre of Advanced Study)Institute of ScienceBanaras Hindu University Varanasi 221005 India
| |
Collapse
|
22
|
Zhai Y, Su Z, Jiang H, Rong J, Qiu X, Tao C. B2pin2-mediated copper-catalyzed oxidation of alkynes into 1,2-diketones using molecular oxygen. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.02.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
23
|
Cho E, Jayaraman A, Lee J, Ko KC, Lee S. Substituent Effect in the Synthesis of α,α‐Dibromoketones, 1,2‐Dibromalkenes, and 1,2‐Diketones from the Reaction of Alkynes and Dibromoisocyanuric Acid. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801535] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Eunjeong Cho
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Aravindan Jayaraman
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Junseong Lee
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| | - Kyoung Chul Ko
- Department of Chemistry EducationChonnam National University Gwangju 61186 Republic of Korea
| | - Sunwoo Lee
- Department of ChemistryChonnam National University Gwangju 61186 Republic of Korea
| |
Collapse
|
24
|
Zhou J, Tao XZ, Dai JJ, Li CG, Xu J, Xu HM, Xu HJ. Electrochemical synthesis of 1,2-diketones from alkynes under transition-metal-catalyst-free conditions. Chem Commun (Camb) 2019; 55:9208-9211. [DOI: 10.1039/c9cc03996a] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel electrochemical protocol for the direct oxidation of internal alkynes in air to provide 1,2-diketones was developed.
Collapse
Affiliation(s)
- Jie Zhou
- School of Food and Biological Engineering
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes
- Hefei University of Technology
- Hefei 230009
- China
| | - Xiang-Zhang Tao
- School of Food and Biological Engineering
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes
- Hefei University of Technology
- Hefei 230009
- China
| | - Jian-Jun Dai
- School of Food and Biological Engineering
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes
- Hefei University of Technology
- Hefei 230009
- China
| | - Chen-Guang Li
- School of Food and Biological Engineering
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes
- Hefei University of Technology
- Hefei 230009
- China
| | - Jun Xu
- School of Food and Biological Engineering
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes
- Hefei University of Technology
- Hefei 230009
- China
| | - Hong-Mei Xu
- School of Food and Biological Engineering
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes
- Hefei University of Technology
- Hefei 230009
- China
| | - Hua-Jian Xu
- School of Food and Biological Engineering
- Key Laboratory of Metabolism and Regulation for Major Diseases of Anhui Higher Education Institutes
- Hefei University of Technology
- Hefei 230009
- China
| |
Collapse
|
25
|
Anitha M, Shankar M, Kumara Swamy KC. Reactivity of epoxy-ynamides with metal halides: nucleophile (Br/Cl/OH)-assisted tandem intramolecular 5-exo-digor 6-endo-digcyclisation and AgF2-promoted oxidation. Org Chem Front 2019. [DOI: 10.1039/c9qo00027e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Several metal halides (CuBr, LiCl, CuF2, AgF2) react with epoxy-ynamides to afford 1,3-oxazolidines, 1,4-oxazines or 1,2-dioxo-enamides.
Collapse
Affiliation(s)
- Mandala Anitha
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
| | | | | |
Collapse
|
26
|
Iwasaki R, Tanaka E, Ichihashi T, Idemoto Y, Endo K. Semireduction of Alkynes Using Formic Acid with Reusable Pd-Catalysts. J Org Chem 2018; 83:13574-13579. [DOI: 10.1021/acs.joc.8b02169] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Riku Iwasaki
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Eikichi Tanaka
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Toshinari Ichihashi
- Research Equipment Center, Tokyo University of Science, 2641 Yamazaki,
Noda-shi, Chiba 278-8510, Japan
| | - Yasushi Idemoto
- Department of Pure and Applied Chemistry, Faculty of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda-shi, Chiba 278-8510, Japan
| | - Kohei Endo
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| |
Collapse
|
27
|
Ma M, Hao W, Ma L, Zheng Y, Lian P, Wan X. Interception of Radicals by Molecular Oxygen and Diazo Compounds: Direct Synthesis of Oxalate Esters Using Visible-Light Catalysis. Org Lett 2018; 20:5799-5802. [DOI: 10.1021/acs.orglett.8b02487] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Meihua Ma
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Weiwei Hao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Liang Ma
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yonggao Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Pengcheng Lian
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| |
Collapse
|
28
|
Das DK, Kumar Pampana VK, Hwang KC. Copper catalyzed photoredox synthesis of α-keto esters, quinoxaline, and naphthoquinone: controlled oxidation of terminal alkynes to glyoxals. Chem Sci 2018; 9:7318-7326. [PMID: 30294421 PMCID: PMC6167948 DOI: 10.1039/c8sc03447h] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 08/28/2018] [Indexed: 12/17/2022] Open
Abstract
Controlled oxidation of the terminal C
Created by potrace 1.16, written by Peter Selinger 2001-2019
]]>
C triple bond using O2 (1 atm) as an oxidant and reagent.
Herein, we report a facile visible light induced copper catalyzed controlled oxidation of terminal C
Created by potrace 1.16, written by Peter Selinger 2001-2019
]]>
C alkynes to α-keto esters and quinoxalines via formation of phenylglyoxals as stable intermediates, under mild conditions by using molecular O2 as a sustainable oxidant. The current copper catalysed photoredox method is simple, highly functional group compatible with a broad range of electron rich and electron poor aromatic alkynes as well as aliphatic alcohols (1°, 2° and 3° alcohols), providing an efficient route for the preparation of α-keto esters (43 examples), quinoxaline and naphthoquinone with higher yields than those in the literature reported thermal processes. Furthermore, the synthetic utility of the products has been demonstrated in the synthesis of two biologically active molecules, an E. coli DHPS inhibitor and CFTR activator, using the current photoredox process. In addition, we applied this methodology to the one-pot synthesis of a heterocyclic compound (quinoxaline, an FLT3 inhibitor) by trapping the intermediate phenylglyoxal with O-phenylenediamine. The intermediate phenylglyoxal can also be isolated and further reacted with an internal alkyne to form naphthoquinone. This process can be readily scaled up to the gram scale.
Collapse
Affiliation(s)
- Deb Kumar Das
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
| | - V Kishore Kumar Pampana
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
| | - Kuo Chu Hwang
- Department of Chemistry , National Tsing Hua University , Hsinchu , Taiwan , Republic of China .
| |
Collapse
|
29
|
Tamuli KJ, Bordoloi M. KI‐I
2
‐DMSO: An Improved Microwave‐Assisted Selective Oxidation of Alkenes into 1,2‐Diketones. ChemistrySelect 2018. [DOI: 10.1002/slct.201800433] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kashyap J. Tamuli
- Natural Products Chemistry GroupCSIR-North East Institute of Science & Technology, Jorhat 785006 Assam India
- Academy of Scientific and Innovative Research, CSIR India
| | - Manobjyoti Bordoloi
- Natural Products Chemistry GroupCSIR-North East Institute of Science & Technology, Jorhat 785006 Assam India
- Academy of Scientific and Innovative Research, CSIR India
| |
Collapse
|
30
|
Kim SW, Um TW, Shin S. Metal-Free Iodine-Catalyzed Oxidation of Ynamides and Diaryl Acetylenes into 1,2-Diketo Compounds. J Org Chem 2018; 83:4703-4711. [DOI: 10.1021/acs.joc.8b00484] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Seung Woo Kim
- Department of Chemistry, Center for New Directions in Organic Synthesis (CNOS) and Research Institute for Natural Sciences, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
| | - Tae-Woong Um
- Department of Chemistry, Center for New Directions in Organic Synthesis (CNOS) and Research Institute for Natural Sciences, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
| | - Seunghoon Shin
- Department of Chemistry, Center for New Directions in Organic Synthesis (CNOS) and Research Institute for Natural Sciences, Hanyang University, 222-Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
| |
Collapse
|
31
|
Takenaka H, Masuhara Y, Narita K, Nokami T, Itoh T. Synthesis of 2,2-difluoro-homoallylic alcohols via ring-opening of gem-difluorocyclopropane and aerobic oxidation by photo-irradiation in the presence of an organic pigment. Org Biomol Chem 2018; 16:6106-6114. [PMID: 30091778 DOI: 10.1039/c8ob01740a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The aerobic oxidation took place after the visible light-mediated ring-opening reaction of gem-difluorocyclopropane in the presence of an organic dye and amine to furnish 2,2-difluoro-homoallylic alcohols in good yields.
Collapse
Affiliation(s)
- Hiroaki Takenaka
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| | - Yoshihiro Masuhara
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| | - Kent Narita
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| | - Toshiki Nokami
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| | - Toshiyuki Itoh
- Department of Chemistry and Biotechnology
- Graduate School of Engineering
- Tottori University
- Tottori 680-8552
- Japan
| |
Collapse
|
32
|
Bildung von α-Ketoradikalen aus Vinylbromiden und molekularem Sauerstoff mit sichtbarem Licht: Synthese von Indenonen und Dihydroindeno[1,2-c
]chromenen. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702953] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
33
|
Pagire SK, Kreitmeier P, Reiser O. Visible-Light-Promoted Generation of α-Ketoradicals from Vinyl-bromides and Molecular Oxygen: Synthesis of Indenones and Dihydroindeno[1,2-c]chromenes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/anie.201702953] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Santosh K. Pagire
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Germany
| | - Peter Kreitmeier
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Germany
| | - Oliver Reiser
- Institut für Organische Chemie; Universität Regensburg; Universitätsstraße 31 93053 Regensburg Germany
| |
Collapse
|