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Zhao BY, Jia Q, Wang YQ. Synthesis of meta-carbonyl phenols and anilines. Nat Commun 2024; 15:2415. [PMID: 38499520 PMCID: PMC10948751 DOI: 10.1038/s41467-024-46576-2] [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: 12/17/2023] [Accepted: 03/01/2024] [Indexed: 03/20/2024] Open
Abstract
Phenols and anilines are of extreme importance for medicinal chemistry and material science. The development of efficient approaches to prepare both compounds has thus long been a vital research topic. The utility of phenols and anilines directly reflects the identity and pattern of substituents on the benzenoid ring. Electrophilic substitutions remain among the most powerful synthetic methods to substituted phenols and anilines, yet in principle achieving ortho- and para-substituted products. Therefore, the selective preparation of meta-substituted phenols and anilines is the most significant challenge. We herein report an efficient copper-catalyzed dehydrogenation strategy to exclusively synthesize meta-carbonyl phenols and anilines from carbonyl substituted cyclohexanes. Mechanistic studies indicate that this transformation undergoes a copper-catalyzed dehydrogenation/allylic hydroxylation or amination/oxidative dehydrogenation/aromatization cascade process.
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Affiliation(s)
- Bao-Yin Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, School of Foreign Languages, Northwest University, Xi'an, 710069, China
| | - Qiong Jia
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, School of Foreign Languages, Northwest University, Xi'an, 710069, China
| | - Yong-Qiang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, School of Foreign Languages, Northwest University, Xi'an, 710069, China.
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2
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Yu X, Huang N, Huo Y, Li X, Liu Y, Maruoka K, Chen Q. Photoredox-Mediated Aerobic Oxidative Cleavage of 1,3-Diketones to Access 1,2-Diketones and ( Z)-1,4-Enediones. Org Lett 2024. [PMID: 38175988 DOI: 10.1021/acs.orglett.3c04247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
An aerobic oxidative cleavage of 1,3-diketones under visible light irradiation using an organic dye as a photocatalyst is disclosed. The newly developed reaction provides practical access to 1,2-diketones and (Z)-1,4-enediones in moderate to good yields with absolute regio- and stereoselectivity. Mechanistic studies of the reaction suggest that tetraketone intermediates might undergo a photocatalytic energy transfer from the excited photocatalyst to form biradical-like (n,π*) states of ketones.
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Affiliation(s)
- Xiaofeng Yu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Nan Huang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
| | - Keiji Maruoka
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
- Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto 606-8501, Japan
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510006, China
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Luo J, Luo Z, Zhang B, Zhao Q, Liu L, Liu Y. B(C 6 F 5 ) 3 -Catalyzed [2+3]-Cyclative o,m-diC-H Functionalization of Phenols. Chemistry 2023; 29:e202301595. [PMID: 37759356 DOI: 10.1002/chem.202301595] [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: 05/19/2023] [Revised: 09/10/2023] [Accepted: 09/21/2023] [Indexed: 09/29/2023]
Abstract
Metal-free catalytic C-H functionalization is highly desired for the construction of C-C bonds. We herein report a highly chemoselective consecutive C-H [2+3]-cyclative functionalization for the simultaneous formation of two C-C bonds with construction of polycyclic phenols catalyzed by commercially available and low-cost B(C6 F5 )3 . This catalytic system tolerates a wide range of substrate scope, providing a series of 2,6,7,8-tetrahydroacenaphthylen-3-ol-type polycyclic compounds efficiently. Several derivatizations of the catalytic products have also been conducted to show the potential application of this method in synthesis of polycyclic compounds.
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Affiliation(s)
- Jingyan Luo
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Zhou Luo
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Biqi Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Qiuyu Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Yuanyuan Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
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4
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Halder A, Maiti D, Dutta J, De Sarkar S. Electro-oxidative Synthesis of Unsymmetrical Alkyne-1,4-diones via Sequential Ring Formation and Cleavage. Org Lett 2023; 25:7578-7583. [PMID: 37812069 DOI: 10.1021/acs.orglett.3c03045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Synthesis of unsymmetrical but-2-yne-1,4-diones is reported through oxidative alkyne translocation of readily accessible homopropargylic alcohols. The developed method consists of an unprecedented one-pot sequential electro-oxidative annulation-fragmentation-chemical selenoxide elimination process. Excellent functional group compatibility was observed, and an array of yne-1,4-diones were synthesized. Derivatization of the alkyne gave access to other valuable scaffolds. Detailed mechanistic studies through the isolation of key intermediates clarified the cascade transformation.
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Affiliation(s)
- Atreyee Halder
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal India
| | - Debabrata Maiti
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal India
| | - Jhilik Dutta
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur 741246, West Bengal India
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5
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Peng M, Li H, Qin Z, Li J, Sun Y, Zhang X, Jiang L, Do H, An J. Pentafluorophenyl Group as Activating Group: Synthesis of α‐Deuterio Carboxylic Acid Derivatives via Et
3
N Catalyzed H/D Exchange. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mengqi Peng
- Department of Nutrition and Health China Agricultural University Beijing 100193 People's Republic of China
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Hengzhao Li
- Department of Nutrition and Health China Agricultural University Beijing 100193 People's Republic of China
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Zixuan Qin
- Department of Chemistry and Innovation Center of Pesticide Research China Agricultural University Beijing 100193 People's Republic of China
| | - Junyu Li
- Department of Nutrition and Health China Agricultural University Beijing 100193 People's Republic of China
| | - Yanhao Sun
- Department of Nutrition and Health China Agricultural University Beijing 100193 People's Republic of China
| | - Xiaoxu Zhang
- Department of Nutrition and Health China Agricultural University Beijing 100193 People's Republic of China
| | - Ling Jiang
- Department of Chemical and Environmental Engineering University of Nottingham Ningbo China Ningbo 315100 People's Republic of China
| | - Hainam Do
- Department of Chemical and Environmental Engineering University of Nottingham Ningbo China Ningbo 315100 People's Republic of China
- Key Laboratory for Carbonaceous Waste Processing and Process Intesification Research of Zhejiang Province University of Nottingham Ningbo China Ningbo 315100 People's Republic of China
| | - Jie An
- Department of Nutrition and Health China Agricultural University Beijing 100193 People's Republic of China
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Yang L, Wang J, Wang Y, Li X, Liu W, Zhang Z, Xie X. Stereoselective Synthesis of cis-2-Ene-1,4-diones via Aerobic Oxidation of Substituted Furans Catalyzed by ABNO/HNO 3. J Org Chem 2021; 86:14311-14320. [PMID: 34618466 DOI: 10.1021/acs.joc.1c00613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a highly efficient and selective catalytic system, ABNO (9-azabicyclo-[3.3.1]nonane N-oxyl)/HNO3, for the aerobic oxidation of substituted furans to cis-2-ene-1,4-diones under mild reaction conditions using oxygen as the oxidant. The catalyst system is amenable to various substituted (mon-, di-, and tri-) furans and tolerates diverse functional groups, including cyano, nitro, naphthyl, ketone, ester, heterocycle, and even formyl groups. Based on the control and 18O-labeling experiments, the possible mechanism of the oxidation is proposed.
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Affiliation(s)
- Liqun Yang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Jingyang Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yue Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiaotong Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wei Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhaoguo Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.,Shanghai Institute of Organic Chemistry, Chines Academy of Sciences, 345 Fenglin Road, Shanghai 200032, China
| | - Xiaomin Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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7
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Zhong JS, Yang ZX, Ding CL, Huang YF, Zhao Y, Yan H, Ye KY. Desulfonylative Electrocarboxylation with Carbon Dioxide. J Org Chem 2021; 86:16162-16170. [PMID: 34355896 DOI: 10.1021/acs.joc.1c01261] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Electrocarboxylation of organic halides is one of the most investigated electrochemical approaches for converting thermodynamically inert carbon dioxide (CO2) into value-added carboxylic acids. By converting organic halides into their sulfone derivatives, we have developed a highly efficient electrochemical desulfonylative carboxylation protocol. Such a strategy takes advantage of CO2 as the abundant C1 building block for the facile preparation of multifunctionalized carboxylic acids, including the nonsteroidal anti-inflammatory drug ibuprofen, under mild reaction conditions.
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Affiliation(s)
- Jun-Song Zhong
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zi-Xin Yang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Cheng-Lin Ding
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ya-Feng Huang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yi Zhao
- BayRay Innovation Center, Shenzhen Bay Laboratory (SZBL), Guangdong 518000, China
| | - Hong Yan
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ke-Yin Ye
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), Institute of Pharmaceutical Science and Technology, College of Chemistry, Fuzhou University, Fuzhou 350108, China.,State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen 361005, P. R. China
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8
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Abstract
Herein, we describe a DBU/O2-promoted novel method for oxidation of dienones to 2,6-dione derivatives. The reaction involves treatment of a dienone with DBU in acetonitrile employing molecular oxygen as the oxidant. Metal free conditions and an eco-friendly reagent are the striking features of this protocol. This transformation proceeds through a peroxide intermediate that upon Kornblum-DeLaMare rearrangement produces 2,6-diones. The method was successfully utilized for the synthesis of (±)-pleodendione with improved yields versus those of the traditional PDC-TBHP method.
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Affiliation(s)
- Paresh R Athawale
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Hanuman P Kalmode
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - D Srinivasa Reddy
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,CSIR-Indian Institute of Integrated Medicine, Canal Road, Jammu 180001, India
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