1
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Lv C, Zhao R, Wang X, Liu D, Muschin T, Sun Z, Bai C, Bao A, Bao YS. Copper-Catalyzed Transamidation of Unactivated Secondary Amides via C-H and C-N Bond Simultaneous Activations. J Org Chem 2023; 88:2140-2157. [PMID: 36701175 DOI: 10.1021/acs.joc.2c02551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Here, we demonstrate that α-C-H and C-N bonds of unactivated secondary amides can be activated simultaneously by the copper catalyst to synthesize α-ketoamides or α-ketoesters in one step, which is a challenging and underdeveloped transformation. Using copper as a catalyst and air as an oxidant, the reaction is compatible with a broad range of acetoamides, amines, and alcohols. The preliminary mechanism studies and density functional theory calculation indicated that the reaction process may undergo first radical α-oxygenation and then transamidation with the help of the resonant six-membered N,O-chelation and molecular oxygen plays a role as an initiator to trigger the transamidation process. The combination of chelation assistance and dioxygen selective oxygenation strategy would substantially extend the modern mild synthetic amide cleavage toolbox, and we envision that this broadly applicable method will be of great interest in the biopharmaceutical industry, synthetic chemistry, and agrochemical industry.
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Affiliation(s)
- Cong Lv
- Inner Mongolia Key Laboratory of Green Catalysis, College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China
| | - Ruisheng Zhao
- Inner Mongolia Key Laboratory of Green Catalysis, College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China
| | - Xiuying Wang
- Inner Mongolia Autonomous Region Animal Epidemic Prevention Center, Hohhot 010020, China
| | - Dan Liu
- Inner Mongolia Key Laboratory of Green Catalysis, College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China
| | - Tegshi Muschin
- Inner Mongolia Key Laboratory of Green Catalysis, College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China
| | - Zhaorigetu Sun
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010020, China
| | - Chaolumen Bai
- Inner Mongolia Key Laboratory of Green Catalysis, College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China
| | - Agula Bao
- Inner Mongolia Key Laboratory of Green Catalysis, College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China
| | - Yong-Sheng Bao
- Inner Mongolia Key Laboratory of Green Catalysis, College of Chemistry and Environmental Science, Inner Mongolia Normal University, Hohhot 010022, China
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2
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Zhang R, Ma R, Fu Q, Chen J, Ma Y. I 2 /PhNO 2 Mediated Synthesis of Quinazolin-4(3 H)-ones by C(CO)—C Bond Oxidative Cleavage of Acetophenones and Amination with 2-Aminobenzamides. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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3
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Chen XH, Xiao X, Li JQ, Li WZ, Cui HL. Modification of pyrrolo[2,1-a]isoquinolines via dicarbonylation with dimethyl sulfoxide and arylacyl bromides affording 1,2-dicarbonylated pyrrolo[2,1-a]isoquinolines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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4
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Deka B, Rastogi GK, Deb ML, Baruah PK. Ten Years of Glory in the α-Functionalizations of Acetophenones: Progress Through Kornblum Oxidation and C-H Functionalization. Top Curr Chem (Cham) 2021; 380:1. [PMID: 34746982 DOI: 10.1007/s41061-021-00356-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/21/2021] [Indexed: 11/29/2022]
Abstract
This review article focuses on the α-functionalization of acetophenones involving Kornblum oxidation and C-H functionalizations. Although various other strategies, such as classical approaches, enamine approaches and umpolung strategy are also known for this functionalization, here we discuss mainly the Kornblum oxidation approach and C-H functionalization strategy as they have advantages over the others. In Kornblum oxidation, the reaction uses iodine and dimethylsulfoxide and proceeds through the formation of arylglyoxal as the key intermediate. In C-H functionalization, the reaction requires metal, or metal-free catalyst, and generates radical intermediate in most cases. α-Functionalization of acetophenones is very important because of their huge applications in the synthesis of various natural products and pharmaceuticals and, therefore, a number of research articles have been published in this area. However, no review articles are available so far. In this article, we present a succinct discussion of various important and novel reactions, along with their mechanisms, published since 2012 to date. We believe that this first review article in this field will give readers one-stop information on this topic and encourage further intriguing work in this area.
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Affiliation(s)
- Bhaskar Deka
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, 781014, India
| | - Gaurav K Rastogi
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, 781014, India
| | - Mohit L Deb
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, 781014, India
| | - Pranjal K Baruah
- Department of Applied Sciences, GUIST, Gauhati University, Guwahati, Assam, 781014, India.
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5
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Zhang X, Miao X, Jiang H, Ge F, Sun J, Zhang R, Ouyang Q, Fan W, Zhu Y, Sun Y. Iodine‐Promoted Synthesis of Dipyrazolo/Diuracil‐Fused Pyridines and
o
‐Amino Diheteroaryl ketones via Oxidative Domino Annulation of 2/4‐Methylazaarenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100839] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Xin‐Ke Zhang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Xiao‐Yu Miao
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Hui‐Ru Jiang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Fei Ge
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Jia‐Chen Sun
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Rui‐Ying Zhang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Qin Ouyang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Wei‐Yu Fan
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Yan‐Ping Zhu
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Yuan‐Yuan Sun
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
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6
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Zhao R, Teng J, Wang Z, Dong W, Lin J, Chu C. Copper on charcoal: Cu 0 nanoparticle catalysed aerobic oxidation of α-diazo esters. Org Biomol Chem 2021; 19:6120-6126. [PMID: 34179916 DOI: 10.1039/d1ob00811k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By using a charcoal supported nano Cu0 catalyst (Cu/C), a highly efficient oxidation of α-diazo esters to α-ketoesters with molecular oxygen as the sole oxidant has been developed. In the presence of the Cu/C catalyst, 2-aryl-α-diazo esters with both electron-donating and electron-withdrawing groups can be oxidized to the corresponding α-ketoesters efficiently. Furthermore, this Cu/C catalyst can catalyse the reaction of aryl α-diazo ester with water to form aryl ketoester, 2-aryl-2-hydroxyl acetate ester and 2-aryl acetate ester. In this case, water is split by α-diazo ester, and the diazo group is displaced by the oxygen or hydrogen atom in water. Mechanistic investigation showed that the reaction of α-diazo ester with oxygen proceeds through a radical pathway. In the presence of 2,2,6,6-tetramethyl piperidine nitrogen oxide, the reaction of α-diazo ester with oxygen is dramatically inhibited. Furthermore, the reaction of α-diazo ester with water is investigated by an isotopic tracer method, and GCMS detection showed that a disproportionation reaction occurred between α-diazo ester and water.
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Affiliation(s)
- Rong Zhao
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Jiangge Teng
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Zhiwei Wang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Wenwen Dong
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Jia Lin
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
| | - Changhu Chu
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; Shanghai Key Laboratory of New Drug Design; School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.
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7
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Cha H, Chai JY, Kim HB, Chi DY. Synthesis of aliphatic α-ketoamides from α-substituted methyl ketones via a Cu-catalyzed aerobic oxidative amidation. Org Biomol Chem 2021; 19:4320-4326. [PMID: 33904536 DOI: 10.1039/d1ob00129a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
α-Ketoamides are an important key functional group and have been used as versatile and valuable intermediates and synthons in a variety of functional group transformations. Synthetic methods for making aryl α-ketoamides as drug candidates have been greatly improved through metal-catalyzed aerobic oxidative amidations. However, the preparation of alkyl α-ketoamides through metal-catalyzed aerobic oxidative amidations has not been reported because generating α-ketoamides from aliphatic ketones with two α-carbons theoretically provides two distinct α-ketoamides. Our strategy is to activate the α-carbon by introducing an N-substituent at one of the two α-positions. The key to this strategy is how heterocyclic compounds such as triazoles and imidazoles affect the selectivity of the synthesis of the alkyl α-ketoamides. From this basic concept, and by optimizing the reaction and elucidating the mechanism of the synthesis of aryl α-ketoamides via a copper-catalyzed aerobic oxidative amidation, we prepared fourteen aliphatic α-ketoamides in high yields (48-84%).
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Affiliation(s)
- Hyojin Cha
- Department of Chemistry, Sogang University, 35 Baekbeomro Mapogu, Seoul 04107, Korea.
| | - Jin Young Chai
- Department of Chemistry, Sogang University, 35 Baekbeomro Mapogu, Seoul 04107, Korea.
| | - Hyeong Baik Kim
- Department of Chemistry, Sogang University, 35 Baekbeomro Mapogu, Seoul 04107, Korea.
| | - Dae Yoon Chi
- Department of Chemistry, Sogang University, 35 Baekbeomro Mapogu, Seoul 04107, Korea.
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8
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Luo X, He R, Liu Q, Gao Y, Li J, Chen X, Zhu Z, Huang Y, Li Y. Metal-Free Oxidative Esterification of Ketones and Potassium Xanthates: Selective Synthesis of α-Ketoesters and Esters. J Org Chem 2020; 85:5220-5230. [DOI: 10.1021/acs.joc.9b03272] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xianglin Luo
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
| | - Runfa He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
| | - Qiang Liu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yanping Gao
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
| | - Jingqing Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
| | - Xiuwen Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
| | - Zhongzhi Zhu
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
| | - Yubing Huang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
| | - Yibiao Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, Guangdong Province 529090, China
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9
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Tian X, Ren Y, Cheng X, Lu W. Aerobic Oxidative C(CO)–C Bond Cleavage under Catalyst‐Free and Additive‐Free Conditions. ChemistrySelect 2019. [DOI: 10.1002/slct.201903197] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Xinzhe Tian
- College of ScienceHenan Agricultural University, Zhengzhou Henan 450002 P.R. China
- College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000, Gansu P. R. China
| | - Yun‐Lai Ren
- College of ScienceHenan Agricultural University, Zhengzhou Henan 450002 P.R. China
| | - Xinqiang Cheng
- School of Chemical Engineering & PharmaceuticsHenan University of Science and Technology, Luoyang Henan 471003 P. R. China
| | - Weiwei Lu
- College of ScienceHenan Agricultural University, Zhengzhou Henan 450002 P.R. China
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10
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Wang Y, Zou J, Wang H, Peng X, Lu Y, Feng Y, Chen C, Shi T, Wang Z. A Facile Approach to α‐Keto Esters via Oxidative Esterification of α‐Amino Carbonyl Compounds. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yong‐qiang Wang
- School of PharmacyLanzhou University West Donggang Road. No. 199 Lanzhou 730000 China
| | - Jiao‐xia Zou
- School of PharmacyLanzhou University West Donggang Road. No. 199 Lanzhou 730000 China
| | - Hui‐hong Wang
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 China
| | - Xue Peng
- School of PharmacyLanzhou University West Donggang Road. No. 199 Lanzhou 730000 China
| | - Ying‐mei Lu
- School of PharmacyLanzhou University West Donggang Road. No. 199 Lanzhou 730000 China
| | - Yi‐yue Feng
- School of PharmacyLanzhou University West Donggang Road. No. 199 Lanzhou 730000 China
| | - Chen Chen
- School of PharmacyLanzhou University West Donggang Road. No. 199 Lanzhou 730000 China
| | - Tao Shi
- School of PharmacyLanzhou University West Donggang Road. No. 199 Lanzhou 730000 China
| | - Zhen Wang
- School of PharmacyLanzhou University West Donggang Road. No. 199 Lanzhou 730000 China
- State Key Laboratory of Applied Organic Chemistry College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 China
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11
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Khan D, Ahmed N, Alsharif MA, Alahmdi MI, Mukhtar S. SeO
2
Mediated Synthesis of Selected Heterocycles by Oxidative C−C Bond Cleavage of AcetophenoneDerivatives. ChemistrySelect 2019. [DOI: 10.1002/slct.201901216] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Danish Khan
- Department of ChemistryIndian Institute of Technology Roorkee, Roorkee- 247 667 Uttarakhand India
| | - Naseem Ahmed
- Department of ChemistryIndian Institute of Technology Roorkee, Roorkee- 247 667 Uttarakhand India
| | - Meshari A. Alsharif
- Department of ChemistryFaculty of ScienceUniversity of Tabuk Tabuk- 71491, Saudi Arabia
| | - Mohammed Issa Alahmdi
- Department of ChemistryFaculty of ScienceUniversity of Tabuk Tabuk- 71491, Saudi Arabia
| | - Sayeed Mukhtar
- Department of ChemistryFaculty of ScienceUniversity of Tabuk Tabuk- 71491, Saudi Arabia
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12
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Bhargude PL, Lade JJ, Patil BN, Vadagaonkar KS, Chaskar AC. Highly adequate oxidative esterification of α-carbonyl aldehydes with alkyl halides in TBAI/TBHP mediated system. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1600193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Pooja L. Bhargude
- National Centre for Nanosciences and Nanotechnology, University of Mumbai, Mumbai, India
| | - Jatin J. Lade
- National Centre for Nanosciences and Nanotechnology, University of Mumbai, Mumbai, India
| | - Bhausaheb N. Patil
- National Centre for Nanosciences and Nanotechnology, University of Mumbai, Mumbai, India
| | | | - Atul C. Chaskar
- National Centre for Nanosciences and Nanotechnology, University of Mumbai, Mumbai, India
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13
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He W, Wu Y, Xie D, Chen Y, Sheng W, Liu Y, Xu G, Xiao J, Liu Q, Guo C. Convenient Synthesis of Acyclic Amidines via Copper‐Catalyzed C(sp
3
)‐H Amidination. ChemistrySelect 2019. [DOI: 10.1002/slct.201900226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Wei He
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
| | - Yao Wu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
| | - Dianke Xie
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
| | - Yun Chen
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
| | - Wenbing Sheng
- School of PharmacyHunan University of Chinese Medicine Changsha 410082 P.R. China
| | - Yuan Liu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
| | - Guiming Xu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
| | - Jiang Xiao
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
| | - Qiang Liu
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
| | - Cancheng Guo
- State Key Laboratory of Chemo/Biosensing and ChemometricsCollege of Chemistry and Chemical EngineeringHunan University Changsha 410082 P.R. China
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14
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Ju Y, Du Z, Xiao C, Li X, Li S. Novel Effect of Zinc Nitrate/Vanadyl Oxalate for Selective Catalytic Oxidation of α-Hydroxy Esters to α-Keto Esters with Molecular Oxygen: An In Situ ATR-IR Study. Molecules 2019; 24:molecules24071281. [PMID: 30986969 PMCID: PMC6480123 DOI: 10.3390/molecules24071281] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 03/26/2019] [Accepted: 03/29/2019] [Indexed: 11/16/2022] Open
Abstract
Selective oxidation of α-hydroxy esters is one of the most important methods to prepare high value-added α-keto esters. An efficient catalytic system consisting of Zn(NO₃)₂/VOC₂O₄ is reported for catalytic oxidation of α-hydroxy esters with molecular oxygen. Up to 99% conversion of methyl DL-mandelate or methyl lactate could be facilely obtained with high selectivity for its corresponding α-keto ester under mild reaction conditions. Zn(NO₃)₂ exhibited higher catalytic activity in combination with VOC₂O₄ compared with Fe(NO₃)₃ and different nitric oxidative gases were detected by situ attenuated total reflection infrared (ATR-IR) spectroscopy. UV-vis and ATR-IR results indicated that coordination complex formed in Zn(NO₃)₂ in CH₃CN solution was quite different from Fe(NO₃)₃; it is proposed that the charge-transfer from Zn2+ to coordinated nitrate groups might account for the generation of different nitric oxidative gases. The XPS result indicate that nitric oxidative gas derived from the interaction of Zn(NO₃)₂ with VOC₂O₄ could be in favor of oxidizing VOC₂O₄ to generate active vanadium (V) species. It might account for different catalytic activity of Zn(NO₃)₂ or Fe(NO₃)₃ combined with VOC₂O₄. This work contributes to further development of efficient aerobic oxidation under mild reaction conditions.
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Affiliation(s)
- Yongwei Ju
- School of Chemical Engineering, Northwest University, Xi'an 710069, China.
| | - Zhongtian Du
- School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China.
| | - Chuhong Xiao
- School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China.
| | - Xingfei Li
- School of Petroleum and Chemical Engineering, Dalian University of Technology, Panjin 124221, China.
| | - Shuang Li
- School of Chemical Engineering, Northwest University, Xi'an 710069, China.
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15
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Hu B, Zhou P, Zhang Q, Wang Y, Zhao S, Lu L, Yan S, Yu F. Metal-Free Oxidative Thioesterification of Methyl Ketones with Thiols/Disulfides for the Synthesis of α-Ketothioesters. J Org Chem 2018; 83:14978-14986. [PMID: 30468069 DOI: 10.1021/acs.joc.8b02235] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A direct Csp3-H bond oxidative thioesterification of methyl ketones with aromatic thiols/disulfides promoted by TBAI/K2S2O8 has been developed. The reaction provides successfully a simple and efficient method for the synthesis of functionalized α-ketothioesters of aromatic thiols. This practical methodology exhibits readily available starting materials, large-scale applicability, synthetic application, and broad functional group tolerance. A possible mechanism for the transformation is proposed.
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Affiliation(s)
- Biao Hu
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Pan Zhou
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Qiaohe Zhang
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Yanqin Wang
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Siyun Zhao
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Lingling Lu
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
| | - Shengjiao Yan
- School of Chemical Science and Technology , Yunnan University , Kunming 650091 , People's Republic of China
| | - Fuchao Yu
- Faculty of Life Science and Technology , Kunming University of Science and Technology , Kunming 650500 , People's Republic of China
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16
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TBAI/K
2
S
2
O
8
‐Promoted Multicomponent Domino Reaction of Aryl Methyl Ketones, Enaminones, and Indoles: A Facile Access to Multisubstituted 3‐Indolyl‐pyrroles. ChemistrySelect 2018. [DOI: 10.1002/slct.201803317] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Meng X, Bi X, Chen G, Chen B, Zhao P. Heterogeneous Esterification from α-Hydroxy Ketone and Alcohols through a Tandem Oxidation Process over a Hydrotalcite-Supported Bimetallic Catalyst. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00265] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xu Meng
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Xiuru Bi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Gexin Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Peiqing Zhao
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
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18
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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
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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
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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.
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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 .
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19
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Sundaravelu N, Chakraborty A, Sekar G. Domino Oxidative Esterification of 2-Oxo Alcohol Using 2-Iodoxybenzoic Acid/I 2
: A Route to Synthesize α
-Ketoester. ChemistrySelect 2018. [DOI: 10.1002/slct.201800941] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nallappan Sundaravelu
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036, Tamil Nadu India
| | - Ankush Chakraborty
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036, Tamil Nadu India
| | - Govindasamy Sekar
- Department of Chemistry; Indian Institute of Technology Madras; Chennai 600036, Tamil Nadu India
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20
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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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21
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Li T, Fu C, Ma Q, Sang Z, Yang Y, Yang H, Lv R, Li B. Cobalt/Copper-Cocatalyzed Synthesis of Imidazo[1,2-a:3,4-a′]dipyridiniums from 2H-[1,2′-Bipyridin]-2-ones and 2-Bromoacetophenones. J Org Chem 2017; 82:10263-10270. [DOI: 10.1021/acs.joc.7b01742] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ting Li
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Chen Fu
- College
of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Qinge Ma
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Zhipei Sang
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Yuhan Yang
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Hao Yang
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Rongrong Lv
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
| | - Bo Li
- College
of Chemistry and Pharmaceutical Engineering, Nanyang Normal University, Nanyang, Henan 473061, P. R. China
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22
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Chen R, Zhao Y, Sun H, Shao Y, Xu Y, Ma M, Ma L, Wan X. In Situ Generation of Quinolinium Ylides from Diazo Compounds: Copper-Catalyzed Synthesis of Indolizine. J Org Chem 2017; 82:9291-9304. [DOI: 10.1021/acs.joc.7b01042] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rongxiang Chen
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yanwei Zhao
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Hongmei Sun
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Ying Shao
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology, Advanced
catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, P. R. China
| | - Yudong Xu
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - 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
| | - 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
| | - 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
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23
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Guo S, Dai Z, Hua J, Jiang W, Yang Z, Fang Z, Guo K. Cu-Catalyzed Synthesis of C-3 Dicarbonyl Indoles via Aerobic Oxidative Coupling of Acetophenones with Indoles. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shiyu Guo
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Zhongxue Dai
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Jiawei Hua
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Wenjin Jiang
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Zhao Yang
- College of Engineering; China Pharmaceutical University; 24 Tongjiaxiang Nanjing 210003 China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering; Nanjing Tech University; 30 Puzhu Rd S. Nanjing 211816 China
- State Key Laboratory of Materials-Oriented Chemical Engineering; 30 Puzhu Rd S. Nanjing 211816 China
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24
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Tiwari AR, Bhanage BM. Chemoselective Cleavage of C(CO)−C Bond: Molecular Iodine-Catalyzed Synthesis of Quinazolines through sp3
C−H Bond Functionalization of Aryl Methyl Ketones. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700217] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Abhishek R. Tiwari
- Department of Chemistry; Institute of Chemical Technology; Matunga East Mumbai 4000 19 India
| | - Bhalchandra M. Bhanage
- Department of Chemistry; Institute of Chemical Technology; Matunga East Mumbai 4000 19 India
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25
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Cha H, Lee K, Chi DY. Synthesis of N -unsubstituted 1,2,3-triazoles via aerobic oxidative N -dealkylation using copper(II) acetate. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.03.068] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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26
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Installation of α-ketocarboxylate groups to C7-position of indolines via C−H addition and oxidation approach under ruthenium catalysis. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.02.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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27
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Jin W, Zheng P, Wong WT, Law GL. Efficient Selenium-Catalyzed Selective C(sp3)−H Oxidation of Benzylpyridines with Molecular Oxygen. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601065] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Weiwei Jin
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Poonnapa Zheng
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Wing-Tak Wong
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
| | - Ga-Lai Law
- State Key Laboratory of Chirosciences and Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hung Hum Kowloon Hong Kong
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28
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Hruszkewycz DP, Miles KC, Thiel OR, Stahl SS. Co/NHPI-mediated aerobic oxygenation of benzylic C-H bonds in pharmaceutically relevant molecules. Chem Sci 2017; 8:1282-1287. [PMID: 28451270 PMCID: PMC5359875 DOI: 10.1039/c6sc03831j] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 10/06/2016] [Indexed: 12/23/2022] Open
Abstract
A simple cobalt(ii)/N-hydroxyphthalimide catalyst system has been identified for selective conversion of benzylic methylene groups in pharmaceutically relevant (hetero)arenes to the corresponding (hetero)aryl ketones. The radical reaction pathway tolerates electronically diverse benzylic C-H bonds, contrasting recent oxygenation reactions that are initiated by deprotonation of a benzylic C-H bond. The reactions proceed under practical reaction conditions (1 M substrate in BuOAc or EtOAc solvent, 12 h, 90-100 °C), and they tolerate common heterocycles, such as pyridines and imidazoles. A cobalt-free, electrochemical, NHPI-catalyzed oxygenation method overcomes challenges encountered with chelating substrates that inhibit the chemical reaction. The utility of the aerobic oxidation method is showcased in the multigram synthesis of a key intermediate towards a drug candidate (AMG 579) under process-relevant reaction conditions.
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Affiliation(s)
- Damian P Hruszkewycz
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , USA .
| | - Kelsey C Miles
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , USA .
| | - Oliver R Thiel
- Process Development, Drug Substance Technologies , Amgen Inc. , One Amgen Center Drive, Thousand Oaks , California 91320 , USA
| | - Shannon S Stahl
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , USA .
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29
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Liu H, Wang M, Li H, Luo N, Xu S, Wang F. New protocol of copper-catalyzed oxidative C(CO) C bond cleavage of aryl and aliphatic ketones to organic acids using O2 as the terminal oxidant. J Catal 2017. [DOI: 10.1016/j.jcat.2016.12.016] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Vadagaonkar KS, Kalmode HP, Shinde SL, Chaskar AC. An Efficient and Metal-free Synthesis of α-KetoestersviaOxidative Cross Coupling of Arylglyoxals with Alcohols. ChemistrySelect 2017. [DOI: 10.1002/slct.201601825] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kamlesh S. Vadagaonkar
- Department of Dyestuff Technology; Institute of Chemical Technology; Mumbai- 400019 India
| | - Hanuman P. Kalmode
- Department of Dyestuff Technology; Institute of Chemical Technology; Mumbai- 400019 India
| | - Suresh L. Shinde
- National Centre for Nanosciences and Nanotechnology; University of Mumbai; Mumbai- 400098 India
| | - Atul C. Chaskar
- Department of Dyestuff Technology; Institute of Chemical Technology; Mumbai- 400019 India
- National Centre for Nanosciences and Nanotechnology; University of Mumbai; Mumbai- 400098 India
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31
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Guo S, Dai Z, Hua J, Yang Z, Fang Z, Guo K. Microfluidic synthesis of α-ketoesters via oxidative coupling of acetophenones with alcohols under metal-free conditions. REACT CHEM ENG 2017. [DOI: 10.1039/c7re00107j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An efficient and novel method for the synthesis of α-ketoesters has been developed via oxidative coupling of acetophenones with alcohols under TBHP/I2/DBU conditions in a microfluidic chip reactor, which has a wide substrate scope, uses a lower dosage of iodine and affords higher product yields in only a few seconds.
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Affiliation(s)
- Shiyu Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zhongxue Dai
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Jiawei Hua
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zhao Yang
- College of Engineering
- China Pharmaceutical University
- Nanjing
- China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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32
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Kumar Y, Jaiswal Y, Kumar A. Copper(II)-Catalyzed Benzylic C(sp3)–H Aerobic Oxidation of (Hetero)Aryl Acetimidates: Synthesis of Aryl-α-ketoesters. J Org Chem 2016; 81:12247-12257. [DOI: 10.1021/acs.joc.6b02176] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Yogesh Kumar
- Department of Chemistry, Indian Institute of Technology Patna, Bihta 801103, Bihar, India
| | - Yogesh Jaiswal
- Department of Chemistry, Indian Institute of Technology Patna, Bihta 801103, Bihar, India
| | - Amit Kumar
- Department of Chemistry, Indian Institute of Technology Patna, Bihta 801103, Bihar, India
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33
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Kong W, Li B, Xu X, Song Q. Fe-Catalyzed Aerobic Oxidative C–CN Bond Cleavage of Arylacetonitriles Leading to Various Esters. J Org Chem 2016; 81:8436-43. [DOI: 10.1021/acs.joc.6b01594] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Weiguang Kong
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China
| | - Bingnan Li
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China
| | - Xuezhao Xu
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China
- Beijing National Laboratory for Molecular Sciences, Beijing, 100190, China
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34
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Xiang JC, Cheng Y, Wang M, Wu YD, Wu AX. Direct Construction of 4-Hydroxybenzils via Para-Selective C–C Bond Coupling of Phenols and Aryl Methyl Ketones. Org Lett 2016; 18:4360-3. [DOI: 10.1021/acs.orglett.6b02118] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jia-Chen Xiang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Yan Cheng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Miao Wang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
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35
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Zhou Y, Rao C, Song Q. Z-Selective Synthesis of γ,δ-Unsaturated Ketones via Pd-Catalyzed Ring Opening of 2-Alkylenecyclobutanones with Arylboronic Acids. Org Lett 2016; 18:4000-3. [PMID: 27479861 DOI: 10.1021/acs.orglett.6b01816] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pd-catalyzed 1,2-addition (instead of 1,4-addition) of arylboronic acids to 2-alkylenecyclobutanones followed by β-carbon elimination from the resulting palladium cyclobutanolates to afford γ,δ-unsaturated ketones was developed. The desired γ,δ-unsaturated ketones were obtained in good to excellent yields with Z/E selectivities of up to >99:1 and a broad spectrum of functional group tolerability.
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Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Changqing Rao
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering at Huaqiao University , 668 Jimei Boulevard, Xiamen, Fujian 361021, P. R. China.,National Laboratory for Molecular Sciences, Institute of Chemistry , Beijing 100190, P. R. China
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36
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Zhou Y, Rao C, Mai S, Song Q. Substituent-Controlled Chemoselective Cleavage of C═C or Csp2–C(CO) Bond in α,β-Unsaturated Carbonyl Compounds with H-Phosphonates Leading to β-Ketophosphonates. J Org Chem 2016; 81:2027-34. [DOI: 10.1021/acs.joc.5b02887] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China
| | - Changqing Rao
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China
| | - Shaoyu Mai
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Materials Science & Engineering, Huaqiao University, 668 Jimei Blvd, Xiamen, Fujian 361021, P. R. China
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37
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Liu C, Fang Z, Yang Z, Li Q, Guo S, Guo K. AIBN/NaBr-promoted aerobic oxidation of benzylic alcohols via a radical process. Org Biomol Chem 2016; 14:577-581. [PMID: 26530962 DOI: 10.1039/c5ob01834j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An economic and practical AIBN-initiated aerobic oxidation system of benzylic alcohols, hetero aryl alcohols and allyl alcohols was developed for the first time. Moderate to excellent yields were obtained with a broad substrate scope. Moreover, a proposed mechanism of a radical process was assumed and confirmed by the key intermediate detected.
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Affiliation(s)
- Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering Nanjing Tech University, 30 Puzhu South Road, Nanjing, 211816, China
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38
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Ma R, He LN, Liu AH, Song QW. Cu(ii)-catalyzed esterification reaction via aerobic oxidative cleavage of C(CO)–C(alkyl) bonds. Chem Commun (Camb) 2016; 52:2145-8. [DOI: 10.1039/c5cc09146b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Cu(ii)-catalyzed aerobic oxidative esterification of simple ketones is realized through α-oxygenation/esterification/nucleophilic addition/C–C bond cleavage with the release of CO2.
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Affiliation(s)
- Ran Ma
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- China
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
| | - Liang-Nian He
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- China
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
| | - An-Hua Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- China
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
| | - Qing-Wen Song
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Nankai University
- China
- Collaborative Innovation Center of Chemical Science and Engineering
- Nankai University
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39
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Guo S, Dai Z, Yang Z, Zhu N, Wan L, Li X, Liu C, Fang Z, Guo K. Metal-free oxidative esterification of acetophenones with alcohols: a facile one-pot approach to α-ketoesters. RSC Adv 2016. [DOI: 10.1039/c6ra19485k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel oxidative esterification method for the synthesis of α-ketoesters has been developed, which is a facile one-pot approach to α-ketoesters from acetophenones with alcohols, especially under metal-free conditions with broad substrate scope.
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Affiliation(s)
- Shiyu Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zhongxue Dai
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zhao Yang
- College of Engineering
- China Pharmaceutical University
- Nanjing
- China
| | - Ning Zhu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Li Wan
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Xin Li
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Chengkou Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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40
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Liu M, Chen T, Yin SF. Copper-catalysed aerobic oxidative esterification of N-heteroaryl methanes with alcohols. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02069g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Efficient copper-catalysed aerobic oxidative esterification of N-heteroaryl methanes with alcohols has been developed. A variety of N-heteroaryl esters including those with functional groups are produced in good to excellent yields under the present reaction conditions.
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Affiliation(s)
- Min Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Tieqiao Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
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41
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Laha RM, Khamarui S, Manna SK, Maiti DK. In Situ Generated AgII-Catalyzed Selective Oxo-Esterification of Alkyne with Alcohol to α-Ketoester: Photophysical Study. Org Lett 2015; 18:144-7. [DOI: 10.1021/acs.orglett.5b03484] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Radha M. Laha
- Department of Chemistry, University of Calcutta, University College of Science, 92 A. P. C. Road, Kolkata 700009, India
| | - Saikat Khamarui
- Department of Chemistry, University of Calcutta, University College of Science, 92 A. P. C. Road, Kolkata 700009, India
| | - Saikat K. Manna
- Department of Chemistry, University of Calcutta, University College of Science, 92 A. P. C. Road, Kolkata 700009, India
| | - Dilip K. Maiti
- Department of Chemistry, University of Calcutta, University College of Science, 92 A. P. C. Road, Kolkata 700009, India
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42
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Zhou M, Zhou Y, Song Q. Cu/Fe-Cocatalyzed Formation of β-Ketophosphonates by a Domino Knoevenagel-Decarboxylation-Oxyphosphorylation Sequence from Aromatic Aldehydes and H-Phosphonates. Chemistry 2015; 21:10654-9. [DOI: 10.1002/chem.201501226] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Indexed: 12/16/2022]
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43
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He Y, Mao J, Rong G, Yan H, Zhang G. Iron-Catalyzed Esterification of Benzyl CH Bonds to Form α-Keto Benzyl Esters. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500252] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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44
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Gao Q, Liu S, Wu X, Zhang J, Wu A. Direct Annulation of Hydrazides to 1,3,4-Oxadiazoles via Oxidative C(CO)–C(Methyl) Bond Cleavage of Methyl Ketones. Org Lett 2015; 17:2960-3. [DOI: 10.1021/acs.orglett.5b01241] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Shan Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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45
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Huang X, Li X, Zou M, Pan J, Jiao N. TEMP and copper cocatalyzed oxygenation of ketones with molecular oxygen: chemoselective synthesis of α-ketoesters. Org Chem Front 2015. [DOI: 10.1039/c5qo00028a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A practical approach to α-ketoesters through TEMP and copper cocatalyzed chemoselective oxidative coupling of methyl ketones with alcohols is developed.
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Affiliation(s)
- Xiaoqiang Huang
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
| | - Xinwei Li
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
| | - Miancheng Zou
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
| | - Jun Pan
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
| | - Ning Jiao
- State Key Laboratory of Natural and Biomimetic Drugs
- Peking University
- School of Pharmaceutical Sciences
- Peking University
- Beijing 100191
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46
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Zhou Y, Zhou M, Chen M, Su J, Du J, Song Q. β-Ketophosphonates formation via deesterification or deamidation of cinnamyl/alkynyl carboxylates or amides with H-phosphonates. RSC Adv 2015. [DOI: 10.1039/c5ra23950h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We report here an unprecedented Fe/Cu synergistically catalyzed deesterificative or deamidative oxyphosphorylation of unsaturated carboxylates or amides with H-phosphonates.
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Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Mingxin Zhou
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Ming Chen
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Modern Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Jihu Su
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Modern Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Jiangfeng Du
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Modern Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
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47
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Ding W, Song Q. Cu-catalyzed aerobic oxidative amidation of aryl alkyl ketones with azoles to afford tertiary amides via selective C–C bond cleavage. Org Chem Front 2015. [DOI: 10.1039/c5qo00101c] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Chemoselective cleavage of the C(CO)–C(alkyl) bond in aryl ketones leading to azole amides is disclosed. Aryl ketones with a variety of long-chain alkyl groups have been demonstrated to be active substrates and mechanism studies suggested that molecular oxygen serves both as an oxidant and a reactant in this strategy.
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Affiliation(s)
- Wen Ding
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- P. R. China
- Beijing National Laboratory for Molecular Sciences
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48
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Deshidi R, Rizvi MA, Shah BA. Highly efficient dehydrogenative cross-coupling of aldehydes with amines and alcohols. RSC Adv 2015. [DOI: 10.1039/c5ra17425b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A common protocol for the synthesis of amides, esters and α-ketoesters via cross dehydrogenative coupling of aldehydes and amines/alcohols has been developed.
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Affiliation(s)
- Ramesh Deshidi
- Academy of Scientific and Innovative Research (AcSIR)
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- India
| | | | - Bhahwal Ali Shah
- Academy of Scientific and Innovative Research (AcSIR)
- Natural Product Microbes
- CSIR-Indian Institute of Integrative Medicine
- India
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49
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Zhou Z, Walleser PM, Tius MA. Isotetronic acids from an oxidative cyclization. Chem Commun (Camb) 2015; 51:10858-60. [DOI: 10.1039/c5cc04051e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation of methyl enones with selenium dioxide leads to a cascade of reactions culminating in the formation of isotetronic acids.
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Affiliation(s)
- Zhe Zhou
- Chemistry Department
- University of Hawaii at Manoa
- Honolulu
- USA
| | | | - Marcus A. Tius
- Chemistry Department
- University of Hawaii at Manoa
- Honolulu
- USA
- University of Hawaii Cancer Center
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