1
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Hong BC, Indurmuddam RR. Tetrabutylammonium decatungstate (TBADT), a compelling and trailblazing catalyst for visible-light-induced organic photocatalysis. Org Biomol Chem 2024; 22:3799-3842. [PMID: 38651982 DOI: 10.1039/d4ob00171k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Tetrabutylammonium decatungstate (TBADT) has recently emerged as an intriguing photocatalyst under visible-light or near-visible-light irradiation in a wide range of organic reactions that were previously not conceivable. Given its ability to absorb visible light and excellent effectiveness in activating unactivated chemical bonds, it is a promising addition to traditional photocatalysts. This review covers some of the contemporary developments in visible-light or near-visible-light photocatalysis reactions enabled by the TBADT catalyst to 2023, with the contents organized by reaction type.
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Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chiayi 621, Taiwan.
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2
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Fan P, Chen Z, Wang C. Nickel/Photo-Cocatalyzed Three-Component Alkyl-Acylation of Aryl-Activated Alkenes. Org Lett 2023. [PMID: 38048426 DOI: 10.1021/acs.orglett.3c03669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Herein, we disclose a nickel/photo-cocatalyzed three-component alkyl-acylation of aryl-substituted alkenes with aldehydes and electron-withdrawing-group-activated alkyl bromides, providing straightforward access to various ketones under mild and ligand-free conditions. The photocatalyst TBADT plays a dual role in activating the acyl C-H bond of aldehydes via hydrogen atom transfer and reducing the C-Br bond of alkyl bromides via single-electron transfer. While the terminal C-C bond is forged through polarity-matched radical-type addition, nickel is likely involved in the acylation step.
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Affiliation(s)
- Pei Fan
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- School of Chemical and Materials Engineering, Anhui Province Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan, Anhui 232038, P. R. China
| | - Zhe Chen
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chuan Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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3
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Wang R, Wang C. Asymmetric imino-acylation of alkenes enabled by HAT-photo/nickel cocatalysis. Chem Sci 2023; 14:6449-6456. [PMID: 37325152 PMCID: PMC10266448 DOI: 10.1039/d3sc01945d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 05/19/2023] [Indexed: 06/17/2023] Open
Abstract
By merging nickel-mediated facially selective aza-Heck cyclization and radical acyl C-H activation promoted by tetrabutylammonium decatungstate (TBADT) as a hydrogen atom transfer (HAT) photocatalyst, we accomplish an asymmetric imino-acylation of oxime ester-tethered alkenes with readily available aldehydes as the acyl source, enabling the synthesis of highly enantioenriched pyrrolines bearing an acyl-substituted stereogenic center under mild conditions. Preliminary mechanistic studies support a Ni(i)/Ni(ii)/Ni(iii) catalytic sequence involving the intramolecular migratory insertion of a tethered olefinic unit into the Ni(iii)-N bond as the enantiodiscriminating step.
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Affiliation(s)
- Rui Wang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
| | - Chuan Wang
- Hefei National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 P. R. China
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4
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Zeng FL, Zhu HL, Wang RN, Yuan XY, Sun K, Qu LB, Chen XL, Yu B. Bismuth vanadate: A versatile heterogeneous catalyst for photocatalytic functionalization of C(sp2)–H bonds. CHINESE JOURNAL OF CATALYSIS 2023. [DOI: 10.1016/s1872-2067(23)64391-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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5
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Paveliev SA, Segida OO, Mulina OM, Krylov IB, Terent’ev AO. Decatungstate-Catalyzed Photochemical Synthesis of Enaminones from Vinyl Azides and Aldehydes. Org Lett 2022; 24:8942-8947. [DOI: 10.1021/acs.orglett.2c03364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Stanislav A. Paveliev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Oleg O. Segida
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Olga M. Mulina
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Igor B. Krylov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
| | - Alexander O. Terent’ev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 119991 Moscow, Russian Federation
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6
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Mandal D, Roychowdhury S, Biswas JP, Maiti S, Maiti D. Transition-metal-catalyzed C-H bond alkylation using olefins: recent advances and mechanistic aspects. Chem Soc Rev 2022; 51:7358-7426. [PMID: 35912472 DOI: 10.1039/d1cs00923k] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal catalysis has contributed immensely to C-C bond formation reactions over the last few decades, and alkylation is no exception. The superiority of such methodologies over traditional alkylation is evident from minimal reaction steps, shorter reaction times, and atom economy while also allowing control over regio- and stereo-selectivity. In particular, hydrocarbonation of alkenes has grabbed increased attention due its fundamental ability to effectively and selectively synthesise a wide range of industrially and pharmaceutically relevant moieties. This review attempts to provide a scientific viewpoint and a systematic analysis of the recent developments in transition-metal-catalyzed alkylation of various C-H bonds using simple and activated olefins. The key features and mechanistic studies involved in these transformations are described briefly.
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Affiliation(s)
- Debasish Mandal
- Department of Chemistry, Indian Institute of Science Education and Research, Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462066, India
| | - Sumali Roychowdhury
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Jyoti Prasad Biswas
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Siddhartha Maiti
- School of Bioengineering, Vellore Institute of Technology, Bhopal University, Bhopal-Indore Highway, Kothrikalan, Sehore, Madhya Pradesh-466114, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India. .,Department of Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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7
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Forni JA, Gandhi VH, Polyzos A. Carbonylative Hydroacylation of Styrenes with Alkyl Halides by Multiphoton Tandem Photoredox Catalysis in Flow. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- José A. Forni
- School of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Vir H. Gandhi
- School of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Anastasios Polyzos
- School of Chemistry, The University of Melbourne, Parkville, Victoria 3010, Australia
- Dr A. Polyzos CSIRO Manufacturing, Research Way, Clayton, Victoria 3168, Australia
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8
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Kawamoto T, Fukuyama T, Picard B, Ryu I. New directions in radical carbonylation chemistry: combination with electron catalysis, photocatalysis and ring-opening. Chem Commun (Camb) 2022; 58:7608-7617. [PMID: 35758516 DOI: 10.1039/d2cc02700c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Radical carbonylation offers potent methods for introducing carbon monoxide into organic molecules. This feature article focuses on our current efforts to develop new strategies for radical carbonylation, which include electron-transfer carbonylation, site-selective C(sp3)-H carbonylation by a photocatalyst and ring-opening carbonylation.
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Affiliation(s)
- Takuji Kawamoto
- Department of Applied Chemistry, Yamaguchi University, Ube, Yamaguchi, 755-8611, Japan
| | - Takahide Fukuyama
- Department of Chemistry, Osaka Metropolitan University (OMU), Sakai, Osaka, 599-8531, Japan
| | - Baptiste Picard
- Organization for Research Promotion, Osaka Metropolitan University (OMU), Sakai, Osaka, 599-8531, Japan.
| | - Ilhyong Ryu
- Organization for Research Promotion, Osaka Metropolitan University (OMU), Sakai, Osaka, 599-8531, Japan. .,Department of Applied Chemistry, National Yang Ming Chiao Tung University (NYCU), Hsinchu, 30010, Taiwan
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9
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Ishida N, Shinoya H, Kamino Y, Kawasaki T, Murakami M. Dehydrogenative Three-Component Coupling of CO with Methylarenes Forming Dibenzyl Ketones. CHEM LETT 2022. [DOI: 10.1246/cl.220166] [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)
- Naoki Ishida
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510
| | - Hiroki Shinoya
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510
| | - Yuka Kamino
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510
| | - Tairin Kawasaki
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510
| | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry, Kyoto University, Katsura, Kyoto 615-8510
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10
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Gao F, Xiao W, Li S, Yu B. A Polyniobotungstate-Based Hybrid for Visible-Light-Induced Phosphorylation of N-Aryl-Tetrahydroisoquinoline. ACS APPLIED MATERIALS & INTERFACES 2022; 14:19278-19284. [PMID: 35446531 DOI: 10.1021/acsami.1c23753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A new organic-inorganic hybrid based on a Nb/W mixed-addendum polyoxometalate with the formula H14[(Co(H2O)3)2(C10H8N2)4(P4W30Nb6O123)]·4(C10H8N2)·8H2O (Co-POM) has been synthesized by the solvothermal method and characterized by single-crystal X-ray diffraction (XRD), powder X-ray diffraction (PXRD), elemental analysis, FTIR spectroscopy, UV-vis absorption spectrum, and thermogravimetric analysis (TGA). Importantly, visible-light-absorption peaks around 525 nm for Co-POM indicated that this material should have potential in visible-light-induced organic reactions. Herein, we disclosed visible-light-promoted phosphorylation of N-aryl-tetrahydroisoquinoline using Co-POM as an efficient heterogeneous photocatalyst. In this procedure, diverse phosphorus reagents are compatible at room temperature and in an O2 atmosphere, giving the corresponding products in good to excellent yields (up to 97%). Simultaneously, this heterogeneous photocatalyst can be recycled up to ten times with a negligible decrease in yield, showing outstanding sustainability and recyclability.
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Affiliation(s)
- Fan Gao
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Kexue Road No. 100, Zhengzhou 450001, China
| | - Wanru Xiao
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Shujun Li
- Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Bing Yu
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Kexue Road No. 100, Zhengzhou 450001, China
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11
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Zhang Y, Guo J, Zhang J, Qiu X, Zhang X, Han J, Zhang B, Long C, Shi Y, Yang Z, Zhao W, Tang Z. Metal-organic frameworks enable regio- and stereo-selective functionalization of aldehydes and ketones. Chem 2022. [DOI: 10.1016/j.chempr.2022.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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12
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Abstract
In recent years, visible light-induced transition metal catalysis has emerged as a new paradigm in organic photocatalysis, which has led to the discovery of unprecedented transformations as well as the improvement of known reactions. In this subfield of photocatalysis, a transition metal complex serves a double duty by harvesting photon energy and then enabling bond forming/breaking events mostly via a single catalytic cycle, thus contrasting the established dual photocatalysis in which an exogenous photosensitizer is employed. In addition, this approach often synergistically combines catalyst-substrate interaction with photoinduced process, a feature that is uncommon in conventional photoredox chemistry. This Review describes the early development and recent advances of this emerging field.
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Affiliation(s)
- Kelvin Pak Shing Cheung
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Sumon Sarkar
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, United States
| | - Vladimir Gevorgyan
- Department of Chemistry and Biochemistry, The University of Texas at Dallas, Richardson, Texas 75080, United States
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13
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Wang YT, Shih YL, Wu YK, Ryu I. Site‐Selective C(sp3)‐H Alkenylation Using Decatungstate Anion as Photocatalyst. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Yi-Lun Shih
- National Yang Ming Chiao Tung University TAIWAN
| | - Yen-Ku Wu
- National Chiao Tung University TAIWAN
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14
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He L, Liang C, Ouyang Y, Li L, Guo Y, Zhang P, Li W. α-Functionalization of ketones promoted by sunlight and heterogeneous catalysis in the aqueous phase. Org Biomol Chem 2022; 20:790-795. [PMID: 34994749 DOI: 10.1039/d1ob02249k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein, a protocol that combines heterogeneous catalysis and solar photocatalysis for the regioselective α-substitution of asymmetric ketones with quinoxalinones has been reported. The result indicates that the reaction is more likely to occur on the α-carbon. This strategy provides a green and efficient way for the α-functionalization of ketones. A singlet oxygen involved mechanism is suggested for the transformation.
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Affiliation(s)
- Lei He
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Chenfeng Liang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Yani Ouyang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Lin Li
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Yirui Guo
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Wanmei Li
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
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15
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Lefebvre C, Van Gysel T, Michelin C, Rousset E, Djiré D, Allais F, Hoffmann N. Photocatalytic Radical Addition to Levoglucosenone. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101298] [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)
- Corentin Lefebvre
- ICMR, Equipe de Photochimie, CNRS Université de Reims Champagne-Ardenne UFR Sciences B.P. 1039 51687 Reims France
| | - Terence Van Gysel
- ICMR, Equipe de Photochimie, CNRS Université de Reims Champagne-Ardenne UFR Sciences B.P. 1039 51687 Reims France
| | - Clément Michelin
- ICMR, Equipe de Photochimie, CNRS Université de Reims Champagne-Ardenne UFR Sciences B.P. 1039 51687 Reims France
- Clermont Auvergne INP, ICCF Université Clermont Auvergne, CNRS 63000 Clermont-Ferrand France
| | - Elodie Rousset
- ICMR, Groupe chimie de coordination CNRS Université de Reims Champagne-Ardenne UFR Sciences B.P. 1039 51687 Reims France
| | - Djibril Djiré
- ICMR, Equipe de Photochimie, CNRS Université de Reims Champagne-Ardenne UFR Sciences B.P. 1039 51687 Reims France
- URD Agro-Biotechnologies Industrielles (ABI) CEBB AgroParisTech 51110 Pomacle France
| | - Florent Allais
- URD Agro-Biotechnologies Industrielles (ABI) CEBB AgroParisTech 51110 Pomacle France
| | - Norbert Hoffmann
- ICMR, Equipe de Photochimie, CNRS Université de Reims Champagne-Ardenne UFR Sciences B.P. 1039 51687 Reims France
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16
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Lv Y, Meng J, Li C, Wang X, Ye Y, Sun K. Update on the Synthesis of N‐Heterocycles via Cyclization of Hydrazones (2017–2021). Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101184] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yunhe Lv
- College of Chemistry and Chemical Engineering Anyang Normal University Anyang 4550008 People's Republic of China
| | - Jianping Meng
- College of Chemistry and Chemical Engineering Yantai University Yantai 264005 People's Republic of China
| | - Chen Li
- College of Chemistry and Chemical Engineering Yantai University Yantai 264005 People's Republic of China
| | - Xin Wang
- College of Chemistry and Chemical Engineering Yantai University Yantai 264005 People's Republic of China
| | - Yong Ye
- College of Chemistry Zhengzhou University Zhengzhou 450001 People's Republic of China
| | - Kai Sun
- College of Chemistry and Chemical Engineering Yantai University Yantai 264005 People's Republic of China
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17
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Kong S, He C, Dong J, Li N, Xu C, Pan X. Sunlight‐Mediated Degradation of Polyethylene under the Synergy of Photothermal CH Activation and Modification. MACROMOL CHEM PHYS 2021. [DOI: 10.1002/macp.202100322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Shengnan Kong
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Congze He
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Jin Dong
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Ning Li
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Chaoran Xu
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
| | - Xiangcheng Pan
- State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University Shanghai 200438 China
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18
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Kirinde Arachchige PT, Handunneththige S, Talipov MR, Kalutharage N, Yi CS. Scope and Mechanism of the Redox-Active 1,2-Benzoquinone Enabled Ruthenium-Catalyzed Deaminative α-Alkylation of Ketones with Amines. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04732] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | - Suhashini Handunneththige
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, United States
| | - Marat R. Talipov
- Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces, New Mexico 88003, United States
| | - Nishantha Kalutharage
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233, United States
| | - Chae S. Yi
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233, United States
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19
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Rapid alkenylation of quinoxalin-2(1H)-ones enabled by the sequential Mannich-type reaction and solar photocatalysis. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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20
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Pannilawithana N, Pudasaini B, Baik MH, Yi CS. Experimental and Computational Studies on the Ruthenium-Catalyzed Dehydrative C-H Coupling of Phenols with Aldehydes for the Synthesis of 2-Alkylphenol, Benzofuran, and Xanthene Derivatives. J Am Chem Soc 2021; 143:13428-13440. [PMID: 34428913 DOI: 10.1021/jacs.1c06887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The cationic Ru-H complex [(C6H6)(PCy3)(CO)RuH]+BF4- (1) was found to be an effective catalyst for the dehydrative C-H coupling reaction of phenols and aldehydes to form 2-alkylphenol products. The coupling reaction of phenols with branched aldehydes selectively formed 1,1-disubstituted benzofurans, while the coupling reaction with salicylaldehydes yielded xanthene derivatives. A normal deuterium isotope effect was observed from the coupling reaction of 3-methoxyphenol with benzaldehyde and 2-propanol/2-propanol-d8 (kH/kD = 2.3 ± 0.3). The carbon isotope effect was observed on the benzylic carbon of the alkylation product from the coupling reaction of 3-methoxyphenol with 4-methoxybenzaldehyde (C(3) 1.021(3)) and on both benzylic and ortho-arene carbons from the coupling reaction with 4-trifluorobenzaldehdye (C(2) 1.017(3), C(3) 1.011(2)). The Hammett plot from the coupling reaction of 3-methoxyphenol with para-substituted benzaldehydes p-X-C6H4CHO (X = OMe, Me, H, F, Cl, CF3) displayed a V-shaped linear slope. Catalytically relevant Ru-H complexes were observed by NMR from a stoichiometric reaction mixture of 1, 3-methoxyphenol, benzaldehyde, and 2-propanol in CD2Cl2. The DFT calculations provided a detailed catalysis mechanism featuring an electrophilic aromatic substitution of the aldehyde followed by the hydrogenolysis of the hydroxy group. The calculations also revealed a mechanistic rationale for the strong electronic effect of the benzaldehdye substrates p-X-C6H4CHO (X = OMe, CF3) in controlling the turnover-limiting step. The catalytic C-H coupling method provides an efficient synthetic protocol for 2-alkylphenols, 1,1-disubstituted benzofurans, and xanthene derivatives without employing any reactive reagents or forming wasteful byproducts.
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Affiliation(s)
- Nuwan Pannilawithana
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233 United States
| | - Bimal Pudasaini
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea
| | - Mu-Hyun Baik
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 34141, Republic of Korea.,Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Chae S Yi
- Department of Chemistry, Marquette University, Milwaukee, Wisconsin 53233 United States
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21
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Cai B, Cheo HW, Liu T, Wu J. Light‐Promoted Organic Transformations Utilizing Carbon‐Based Gas Molecules as Feedstocks. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Bin Cai
- Department of Chemistry Scripps Research 10550 North Torrey Pines Road La Jolla California 92037 USA
| | - Han Wen Cheo
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Republic of Singapore
| | - Tao Liu
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Republic of Singapore
| | - Jie Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 Singapore 117543 Republic of Singapore
- National University of Singapore (Suzhou) Research Institute 377 Lin Quan Street, Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
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22
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Rovis T, Kang YC, Treacy SM. Iron-Catalyzed C(sp3)–H Alkylation through Ligand-to-Metal Charge Transfer. Synlett 2021. [DOI: 10.1055/s-0040-1720388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AbstractWe report the FeCl3-catalyzed alkylation of nonactivated C(sp3)–H bonds. Photoinduced ligand-to-metal charge transfer at the iron center generates chlorine radicals that then preferentially abstract hydrogen atoms from electron-rich C(sp3)–H bonds distal to electron-withdrawing functional groups. The resultant alkyl radicals are trapped by electron-deficient olefins, and the catalytic cycle is closed by Fe(II) recombination and protodemetalation.
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23
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Capaldo L, Ravelli D, Fagnoni M. Direct Photocatalyzed Hydrogen Atom Transfer (HAT) for Aliphatic C-H Bonds Elaboration. Chem Rev 2021; 122:1875-1924. [PMID: 34355884 PMCID: PMC8796199 DOI: 10.1021/acs.chemrev.1c00263] [Citation(s) in RCA: 305] [Impact Index Per Article: 101.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
Direct photocatalyzed
hydrogen atom transfer (d-HAT) can be considered
a method of choice for the elaboration of
aliphatic C–H bonds. In this manifold, a photocatalyst (PCHAT) exploits the energy of a photon to trigger the homolytic
cleavage of such bonds in organic compounds. Selective C–H
bond elaboration may be achieved by a judicious choice of the hydrogen
abstractor (key parameters are the electronic character and the molecular
structure), as well as reaction additives. Different are the classes
of PCsHAT available, including aromatic ketones, xanthene
dyes (Eosin Y), polyoxometalates, uranyl salts, a metal-oxo porphyrin
and a tris(amino)cyclopropenium radical dication. The processes (mainly
C–C bond formation) are in most cases carried out under mild
conditions with the help of visible light. The aim of this review
is to offer a comprehensive survey of the synthetic applications of
photocatalyzed d-HAT.
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Affiliation(s)
- Luca Capaldo
- Flow Chemistry Group, Van't Hoff Institute for Molecular Sciences (HIMS), University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Davide Ravelli
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Maurizio Fagnoni
- PhotoGreen Lab, Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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24
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Ueda M, Kitano A, Matsubara H. A computational study of site-selective hydrogen abstraction by sulfate radical anion. Org Biomol Chem 2021; 19:4775-4782. [PMID: 33978050 DOI: 10.1039/d1ob00587a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Many hydrogen abstraction reactions on sp3 carbons with oxyradicals take place site-selectively (regioselectively). To investigate this selectivity, ab initio and density functional theory (DFT) calculations were carried out using cyclopentanone and SO4-˙ as the substrate and oxyradical, respectively. At the ωB97XD/6-311+G(d,p) level, the energy barriers for the forward process (ΔE1‡) of both α- and β-hydrogen abstraction were predicted to be 54.6 and 50.9 kJ mol-1, respectively. Consideration of solvent effects (acetonitrile) decreased these energy barriers to 33.2 and 26.1 kJ mol-1, respectively. These calculation outcomes suggested that β-hydrogen abstraction would be favourable, which supports experimental findings (i.e. β-selective abstraction). At the ωB97XD level, investigations into hydrogen abstraction from cyclohexanone with SO4-˙ confirmed the regioselectivity observed experimentally. Hydrogen abstractions from 2-propylpyridine and 3-methyl-1-butanol using SO4-˙, which are unknown reactions, were also calculated using the DFT method, and the predicted regioselectivity was consistent with that in the known reactions using tetrabutylammonium decatungstate (TBADT). In addition, regioselectivities in unexplored hydrogen abstractions of cyclopentanone by several oxyradicals were predicted. Natural bond orbital (NBO) analysis carried out at the ωB97XD level indicated that the transferred hydrogen atom is partially positively charged when abstracted by an oxyradical. Interestingly, hydrogens bonded to the most positively charged carbon in the substrate were predominantly abstracted by oxyradicals in practice, which should be a simple compass for predicting regioselectivity in the functionalisation of C(sp3)-H bonds with oxyradicals.
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Affiliation(s)
- Masahiro Ueda
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
| | - Atsuki Kitano
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
| | - Hiroshi Matsubara
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
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25
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Abstract
Abstract
The design of new chemical reactions that are convenient, sustainable, and innovative is a preeminent concern for modern synthetic chemistry. While the use of earth abundant element catalysts remains underdeveloped by chemists, nature has developed a cornucopia of powerful transformation using only base metals, demonstrating their viability for sustainable method development. Here we show how study of nature’s approach to disparate chemical problems, from alkene desaturation to photodetection in bacteria, can inspire and enable new approaches to difficult synthetic chemistry problems past, present, and future.
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Affiliation(s)
- Julian G. West
- Department of Chemistry , Rice University , 6100 Main St MS 602 , Houston , TX , 77005 , USA
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26
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Cai B, Cheo HW, Liu T, Wu J. Light-Promoted Organic Transformations Utilizing Carbon-Based Gas Molecules as Feedstocks. Angew Chem Int Ed Engl 2021; 60:18950-18980. [PMID: 33002315 DOI: 10.1002/anie.202010710] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Indexed: 12/13/2022]
Abstract
Carbon-based gas molecules are readily available feedstocks and are widely used in industry as building blocks or fuels. However, their application in the synthesis of fine chemicals has been hampered due to operational complexity, poor reaction efficiency and selectivity. Recent development of photoredox-promoted transformations using such gaseous reagents has received considerable attention from the synthetic community. In this review, efforts in developing light-promoted organic transformations using carbon-based natural gases as C1 or C2 feedstocks and to overcome the associated challenges are briefly summarized.
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Affiliation(s)
- Bin Cai
- Department of Chemistry, Scripps Research, 10550 North Torrey Pines Road, La Jolla, California, 92037, USA
| | - Han Wen Cheo
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore
| | - Tao Liu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore
| | - Jie Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Republic of Singapore.,National University of Singapore (Suzhou) Research Institute, 377 Lin Quan Street, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
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27
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Ueda M, Kamikawa K, Fukuyama T, Wang YT, Wu YK, Ryu I. Site-Selective Alkenylation of Unactivated C(sp 3 )-H Bonds Mediated by Compact Sulfate Radical. Angew Chem Int Ed Engl 2021; 60:3545-3550. [PMID: 33128429 DOI: 10.1002/anie.202011992] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/27/2020] [Indexed: 01/07/2023]
Abstract
A broad variety of unactivated acyclic and alicyclic substrates cleanly undergo site-selective alkenylation of unactivated C(sp3 )-H bonds with 1,2-bis(phenylsulfonyl)ethene in the presence of persulfate. This simple transformation furnishes (E)-2-alkylvinylphenylsulfones in up to 88 % yield. In contrast with the previously reported decatungstate protocol, the current method is applicable to alkenylation of sterically hindered C-H bonds. This important advantage significantly broadens the substrate scope, and is attributed to the compact size of the sulfate radical employed in the C-H activation and cleavage.
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Affiliation(s)
- Mitsuhiro Ueda
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Kazuya Kamikawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Takahide Fukuyama
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
| | - Yi-Ting Wang
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
| | - Yen-Ku Wu
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
| | - Ilhyong Ryu
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka, 599-8531, Japan
- Department of Applied Chemistry, National Chiao Tung University, Hsinchu, Taiwan
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28
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Treacy SM, Rovis T. Copper Catalyzed C(sp 3)-H Bond Alkylation via Photoinduced Ligand-to-Metal Charge Transfer. J Am Chem Soc 2021; 143:2729-2735. [PMID: 33576606 DOI: 10.1021/jacs.1c00687] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Utilizing catalytic CuCl2 we report the functionalization of numerous feedstock chemicals via the coupling of unactivated C(sp3)-H bonds with electron-deficient olefins. The active cuprate catalyst undergoes Ligand-to-Metal Charge Transfer (LMCT) to enable the generation of a chlorine radical which acts as a powerful hydrogen atom transfer reagent capable of abstracting strong electron-rich C(sp3)-H bonds. Of note is that the chlorocuprate catalyst is an exceedingly mild oxidant (0.5 V vs SCE) and that a proposed protodemetalation mechanism offers a broad scope of electron-deficient olefins, offering high diastereoselectivity in the case of endocyclic alkenes. The coupling of chlorine radical generation with Cu reduction through LMCT enables the generation of a highly active HAT reagent in an operationally simple and atom economical protocol.
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Affiliation(s)
- Sean M Treacy
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Tomislav Rovis
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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29
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Zhang W, Bu J, Wang L, Li P, Li H. Sunlight-mediated [3 + 2] cycloaddition of azobenzenes with arynes: an approach toward the carbazole skeleton. Org Chem Front 2021. [DOI: 10.1039/d1qo00739d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A mild sunlight-mediated [3 + 2] cycloaddition of azobenzenes with arynes has been established for the construction of the carbazole backbone.
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Affiliation(s)
- Wenjie Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Jiahui Bu
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Lei Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, P. R. China
| | - Pinhua Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
| | - Hongji Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education; School of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P.R. China
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30
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Hua J, Bian M, Ma T, Yang M, He W, Yang Z, Liu C, Fang Z, Guo K. The sunlight-promoted aerobic selective cyclization of olefinic amides and diselenides. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02273j] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A novel sunlight-promoted approach for the selective synthesis of selenated iminoisobenzofurans or isoindolinones via the aerobic O-cyclization or N-cyclization of olefinic amides with diselenides has been developed.
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Affiliation(s)
- Jiawei Hua
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Mixue Bian
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Tao Ma
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Man Yang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Wei He
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zhao Yang
- College of Engineering
- China Pharmaceutical University
- Nanjing 210003
- China
| | - ChengKou Liu
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
| | - Zheng Fang
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
| | - Kai Guo
- College of Biotechnology and Pharmaceutical Engineering
- Nanjing Tech University
- Nanjing 211816
- China
- State Key Laboratory of Materials-Oriented Chemical Engineering
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31
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Jiang NQ, Li HY, Cai ZJ, Ji SJ. The Mizoroki–Heck reaction initiated formal C(sp 3)–H arylation of carbonyl compounds. Org Chem Front 2021. [DOI: 10.1039/d1qo00769f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work described a Mizoroki–Heck reaction initiated formal C(sp3)–H arylation of α-methylcinnamaldehydes under phosphane-free conditions.
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Affiliation(s)
- Nan-Quan Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Hai-Yan Li
- Analysis and Testing Center, Soochow University, Suzhou 215123, China
| | - Zhong-Jian Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, China
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32
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Ueda M, Kamikawa K, Fukuyama T, Wang Y, Wu Y, Ryu I. Site‐Selective Alkenylation of Unactivated C(sp
3
)−H Bonds Mediated by Compact Sulfate Radical. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202011992] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Mitsuhiro Ueda
- Department of Chemistry Graduate School of Science Osaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Kazuya Kamikawa
- Department of Chemistry Graduate School of Science Osaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Takahide Fukuyama
- Department of Chemistry Graduate School of Science Osaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Yi‐Ting Wang
- Department of Applied Chemistry National Chiao Tung University Hsinchu Taiwan
| | - Yen‐Ku Wu
- Department of Applied Chemistry National Chiao Tung University Hsinchu Taiwan
| | - Ilhyong Ryu
- Department of Chemistry Graduate School of Science Osaka Prefecture University Sakai Osaka 599-8531 Japan
- Department of Applied Chemistry National Chiao Tung University Hsinchu Taiwan
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33
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Crespi S, Fagnoni M. Generation of Alkyl Radicals: From the Tyranny of Tin to the Photon Democracy. Chem Rev 2020; 120:9790-9833. [PMID: 32786419 PMCID: PMC8009483 DOI: 10.1021/acs.chemrev.0c00278] [Citation(s) in RCA: 189] [Impact Index Per Article: 47.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Indexed: 01/09/2023]
Abstract
Alkyl radicals are key intermediates in organic synthesis. Their classic generation from alkyl halides has a severe drawback due to the employment of toxic tin hydrides to the point that "flight from the tyranny of tin" in radical processes was considered for a long time an unavoidable issue. This review summarizes the main alternative approaches for the generation of unstabilized alkyl radicals, using photons as traceless promoters. The recent development in photochemical and photocatalyzed processes enabled the discovery of a plethora of new alkyl radical precursors, opening the world of radical chemistry to a broader community, thus allowing a new era of photon democracy.
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Affiliation(s)
- Stefano Crespi
- Stratingh
Institute for Chemistry, Center for Systems
Chemistry University of Groningen, Nijenborgh 4, 9747
AG Groningen, The Netherlands
| | - Maurizio Fagnoni
- PhotoGreen
Lab, Department of Chemistry, V. Le Taramelli 10, 27100 Pavia, Italy
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34
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Yakubov S, Barham JP. Photosensitized direct C-H fluorination and trifluoromethylation in organic synthesis. Beilstein J Org Chem 2020; 16:2151-2192. [PMID: 32952732 PMCID: PMC7476599 DOI: 10.3762/bjoc.16.183] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/17/2020] [Indexed: 12/11/2022] Open
Abstract
The importance of fluorinated products in pharmaceutical and medicinal chemistry has necessitated the development of synthetic fluorination methods, of which direct C-H fluorination is among the most powerful. Despite the challenges and limitations associated with the direct fluorination of unactivated C-H bonds, appreciable advancements in manipulating the selectivity and reactivity have been made, especially via transition metal catalysis and photochemistry. Where transition metal catalysis provides one strategy for C-H bond activation, transition-metal-free photochemical C-H fluorination can provide a complementary selectivity via a radical mechanism that proceeds under milder conditions than thermal radical activation methods. One exciting development in C-F bond formation is the use of small-molecule photosensitizers, allowing the reactions i) to proceed under mild conditions, ii) to be user-friendly, iii) to be cost-effective and iv) to be more amenable to scalability than typical photoredox-catalyzed methods. In this review, we highlight photosensitized C-H fluorination as a recent strategy for the direct and remote activation of C-H (especially C(sp3)-H) bonds. To guide the readers, we present the developing mechanistic understandings of these reactions and exemplify concepts to assist the future planning of reactions.
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Affiliation(s)
- Shahboz Yakubov
- Fakultät für Chemie und Pharmazie, Universität Regensburg, Universitätsstraße 31, 93040 Regensburg, Germany
| | - Joshua P Barham
- Fakultät für Chemie und Pharmazie, Universität Regensburg, Universitätsstraße 31, 93040 Regensburg, Germany
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35
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Yu D, To WP, Tong GSM, Wu LL, Chan KT, Du L, Phillips DL, Liu Y, Che CM. Luminescent tungsten(vi) complexes as photocatalysts for light-driven C-C and C-B bond formation reactions. Chem Sci 2020; 11:6370-6382. [PMID: 32874518 PMCID: PMC7448528 DOI: 10.1039/d0sc01340d] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/23/2020] [Indexed: 12/13/2022] Open
Abstract
The realization of photocatalysis for practical synthetic application hinges on the development of inexpensive photocatalysts which can be prepared on a large scale. Herein an air-stable, visible-light-absorbing photoluminescent tungsten(vi) complex which can be conveniently prepared at the gram-scale is described. This complex could catalyse photochemical organic transformation reactions including borylation of aryl halides, such as aryl chloride, reductive coupling of benzyl bromides for C-C bond formation, reductive coupling of phenacyl bromides, and decarboxylative coupling of redox-active esters of alkyl carboxylic acid with high product yields and broad functional group tolerance.
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Affiliation(s)
- Daohong Yu
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China .
- State Key Laboratory of Synthetic Chemistry , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Wai-Pong To
- State Key Laboratory of Synthetic Chemistry , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Glenna So Ming Tong
- State Key Laboratory of Synthetic Chemistry , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Liang-Liang Wu
- State Key Laboratory of Synthetic Chemistry , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Kaai-Tung Chan
- State Key Laboratory of Synthetic Chemistry , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Lili Du
- State Key Laboratory of Synthetic Chemistry , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - David Lee Phillips
- State Key Laboratory of Synthetic Chemistry , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
| | - Yungen Liu
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China .
| | - Chi-Ming Che
- Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518055 , China .
- State Key Laboratory of Synthetic Chemistry , HKU-CAS Joint Laboratory on New Materials , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , China
- HKU Shenzhen Institute of Research and Innovation Shenzhen , Guangdong 518055 , China
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36
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Wang C, Dong G. Catalytic β-Functionalization of Carbonyl Compounds Enabled by α,β-Desaturation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01519] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Chengpeng Wang
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
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37
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Fan P, Zhang C, Zhang L, Wang C. Acylation of Aryl Halides and α-Bromo Acetates with Aldehydes Enabled by Nickel/TBADT Cocatalysis. Org Lett 2020; 22:3875-3878. [DOI: 10.1021/acs.orglett.0c01121] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pei Fan
- Hefei National Laboratory for Physical Science at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chang Zhang
- Hefei National Laboratory for Physical Science at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Linchuan Zhang
- Hefei National Laboratory for Physical Science at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Chuan Wang
- Hefei National Laboratory for Physical Science at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
- Center for Excellence in Molecular Synthesis of CAS, Hefei, Anhui 230026, P. R. China
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38
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Yahata K, Yoshioka S, Hori S, Sakurai S, Kaneko Y, Hasegawa K, Akai S. One-Pot Formal Dehydrogenative Ketone Synthesis from Aldehydes and Non-activated Hydrocarbons. Chem Pharm Bull (Tokyo) 2020; 68:336-338. [PMID: 32074521 DOI: 10.1248/cpb.c20-00075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ketones are a fundamental functionality found throughout a range of natural and synthetic compounds, making their synthesis essential throughout the chemical disciplines. Herein, we describe a one-pot synthesis of ketones via decatungstate-mediated formal dehydrogenative coupling between aldehydes and non-activated hydrocarbons. A variety of substituted benzaldehydes and cycloalkanes could be used in the optimized reaction to produce the desired ketones in moderate yields. The decatungstate photocatalyst functions in two reactions in this synthesis, catalyzing both the coupling and oxidation steps of the process. Notably, the reaction displays both high atom economy and sustainability, as it uses light and oxygen as key energy sources.
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Affiliation(s)
- Kenzo Yahata
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Shin Yoshioka
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Shuhei Hori
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Shu Sakurai
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Yuki Kaneko
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Kai Hasegawa
- Graduate School of Pharmaceutical Sciences, Osaka University
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences, Osaka University
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39
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Dai ZY, Nong ZS, Wang PS. Light-Mediated Asymmetric Aliphatic C–H Alkylation with Hydrogen Atom Transfer Catalyst and Chiral Phosphoric Acid. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00610] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Zhen-Yao Dai
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Zhong-Sheng Nong
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Pu-Sheng Wang
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
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40
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An Q, Wang Z, Chen Y, Wang X, Zhang K, Pan H, Liu W, Zuo Z. Cerium-Catalyzed C-H Functionalizations of Alkanes Utilizing Alcohols as Hydrogen Atom Transfer Agents. J Am Chem Soc 2020; 142:6216-6226. [PMID: 32181657 DOI: 10.1021/jacs.0c00212] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Modern photoredox catalysis has traditionally relied upon metal-to-ligand charge-transfer (MLCT) excitation of metal polypyridyl complexes for the utilization of light energy for the activation of organic substrates. Here, we demonstrate the catalytic application of ligand-to-metal charge-transfer (LMCT) excitation of cerium alkoxide complexes for the facile activation of alkanes utilizing abundant and inexpensive cerium trichloride as the catalyst. As demonstrated by cerium-catalyzed C-H amination and the alkylation of hydrocarbons, this reaction manifold has enabled the facile use of abundant alcohols as practical and selective hydrogen atom transfer (HAT) agents via the direct access of energetically challenging alkoxy radicals. Furthermore, the LMCT excitation event has been investigated through a series of spectroscopic experiments, revealing a rapid bond homolysis process and an effective production of alkoxy radicals, collectively ruling out the LMCT/homolysis event as the rate-determining step of this C-H functionalization.
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Affiliation(s)
- Qing An
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,University of Chinese Academy of Science, Shanghai 100049, China
| | - Ziyu Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,University of Chinese Academy of Science, Shanghai 100049, China
| | - Yuegang Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Xin Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,University of Chinese Academy of Science, Shanghai 100049, China
| | - Kaining Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,University of Chinese Academy of Science, Shanghai 100049, China
| | - Hui Pan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,University of Chinese Academy of Science, Shanghai 100049, China
| | - Weimin Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,STU & SIOM Joint Laboratory for Superintense Lasers and the Applications, Shanghai 201210, China
| | - Zhiwei Zuo
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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41
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Yahata K, Sakurai S, Hori S, Yoshioka S, Kaneko Y, Hasegawa K, Akai S. Coupling Reaction between Aldehydes and Non-Activated Hydrocarbons via the Reductive Radical-Polar Crossover Pathway. Org Lett 2020; 22:1199-1203. [DOI: 10.1021/acs.orglett.0c00096] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kenzo Yahata
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shu Sakurai
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shuhei Hori
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shin Yoshioka
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yuki Kaneko
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kai Hasegawa
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shuji Akai
- Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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42
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Fan P, Zhang C, Lan Y, Lin Z, Zhang L, Wang C. Photocatalytic hydroacylation of trifluoromethyl alkenes. Chem Commun (Camb) 2019; 55:12691-12694. [PMID: 31588452 DOI: 10.1039/c9cc07285c] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydrofunctionalization of trifluoromethyl alkenes is highly challenging, because the nucleophilic addition is oftentimes followed by β-F elimination in this case. By the use of tetrabutylammonium decatungstate (TBADT) as a hydrogen-atom-transfer (HAT) photocatalyst for acyl C-H activation, we successfully avoid the β-F elimination in the hydroacylation of trifluoromethyl alkenes with aldehydes. This light (390 nm) promoted reaction provides a facile and efficient access to various β-CF3 ketones in complete regiocontrol with high functionality tolerance and 100% atom economy.
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Affiliation(s)
- Pei Fan
- National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, P. R. China.
| | - Chang Zhang
- National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, P. R. China.
| | - Yun Lan
- National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, P. R. China.
| | - Zhiyang Lin
- National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, P. R. China.
| | - Linchuan Zhang
- National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, P. R. China.
| | - Chuan Wang
- National Laboratory for Physical Science at the Microscale, Department of Chemistry, Center for Excellence in Molecular Synthesis, Hefei University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 20237, P. R. China.
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43
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Cai SL, Li Y, Yang C, Sheng J, Wang XS. NHC Ligand-Enabled, Palladium-Catalyzed Non-Directed C(sp3)–H Carbonylation To Access Indanone Cores. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03426] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shou-Le Cai
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
| | - Chi Yang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, Center for Excellence in Molecular Synthesis of CAS, University of Science and Technology of China, 96 Jinzhai Road, Hefei 230026, China
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44
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Fukuyama T, Nishikawa T, Ryu I. Site-Selective C(sp3
)-H Functionalization of Fluorinated Alkanes Driven by Polar Effects Using a Tungstate Photocatalyst. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901135] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Takahide Fukuyama
- Department of Chemistry; Graduate School of Science; Osaka Prefecture University; 599-8531 Sakai Osaka Japan
| | - Tomohiro Nishikawa
- Department of Chemistry; Graduate School of Science; Osaka Prefecture University; 599-8531 Sakai Osaka Japan
| | - Ilhyong Ryu
- Department of Chemistry; Graduate School of Science; Osaka Prefecture University; 599-8531 Sakai Osaka Japan
- Department of Applied Chemistry; Graduate School of Science; National Chiao Tung University; 30010 Hsinchu Taiwan
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45
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Zidan M, Morris AO, McCallum T, Barriault L. The Alkylation and Reduction of Heteroarenes with Alcohols Using Photoredox Catalyzed Hydrogen Atom Transfer via Chlorine Atom Generation. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900786] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Montserrat Zidan
- Centre for Catalysis; Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie K1N 6N5 Ottawa ON Canada
| | - Avery O. Morris
- Centre for Catalysis; Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie K1N 6N5 Ottawa ON Canada
| | - Terry McCallum
- Centre for Catalysis; Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie K1N 6N5 Ottawa ON Canada
| | - Louis Barriault
- Centre for Catalysis; Research and Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie K1N 6N5 Ottawa ON Canada
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46
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Guo A, Han JB, Zhu L, Wei Y, Tang XY. Site-Selective α-Alkoxyl Alkynation of Alkyl Esters Mediated by Boryl Radicals. Org Lett 2019; 21:2927-2931. [PMID: 30924668 DOI: 10.1021/acs.orglett.9b00985] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel method for site-selective C-H functionalization of ethyl acetate mediated by pyridine-boryl radicals is presented, delivering a variety of 4-phenylbut-3-yn-2-yl acetate derivatives under mild conditions. A distinguishing feature of this reaction is that the pyridine-ligated boryl radicals can abstract the inactive α-hydrogen of the alkoxyl group instead of the α-hydrogen of carbonyl groups described in a previous report using amine-ligated boryl radicals. Significantly, substrates with halogen atoms are compatible under the reaction conditions.
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Affiliation(s)
- Ao Guo
- School of Chemistry and Chemical Engineering and Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
| | - Jia-Bin Han
- School of Chemistry and Chemical Engineering and Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
| | - Lei Zhu
- College of Chemistry and Materials Science , Hubei Engineering University , Hubei 432000 , People's Republic of China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Xiang-Ying Tang
- School of Chemistry and Chemical Engineering and Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica , Huazhong University of Science and Technology , 1037 Luoyu Road , Wuhan 430074 , People's Republic of China
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47
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Buzzetti L, Crisenza GEM, Melchiorre P. Mechanistic Studies in Photocatalysis. Angew Chem Int Ed Engl 2019; 58:3730-3747. [DOI: 10.1002/anie.201809984] [Citation(s) in RCA: 357] [Impact Index Per Article: 71.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Indexed: 12/18/2022]
Affiliation(s)
- Luca Buzzetti
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Giacomo E. M. Crisenza
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Paolo Melchiorre
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
- ICREA—Catalan Institution for Research and Advanced Studies Passeig Lluís Companys 23 08010 Barcelona Spain
- IIT—Istituto Italiano di TecnologiaLaboratory of Asymmetric Catalysis and Photochemistry Via Morego 30 16163 Genoa Italy
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48
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A novel photosensitizing decatungstate-based MOF: Synthesis and photocatalytic oxidation of cyclohexane with molecular oxygen. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2018.12.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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49
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Buzzetti L, Crisenza GEM, Melchiorre P. Mechanistische Studien in der Photokatalyse. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201809984] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Luca Buzzetti
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spanien
| | - Giacomo E. M. Crisenza
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spanien
| | - Paolo Melchiorre
- ICIQ—Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spanien
- ICREA—Catalan Institution for Research and Advanced Studies Passeig Lluís Companys 23 08010 Barcelona Spanien
- IIT—Istituto Italiano di TecnologiaLaboratory of Asymmetric Catalysis and Photochemistry Via Morego 30 16163 Genoa Italy
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50
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Hu K, Qian P, Su JH, Li Z, Wang J, Zha Z, Wang Z. Multifunctionalization of Unactivated Cyclic Ketones via an Electrochemical Process: Access to Cyclic α-Enaminones. J Org Chem 2019; 84:1647-1653. [DOI: 10.1021/acs.joc.8b02930] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kangfei Hu
- Hefei National Laboratory for Physical Science at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Science, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Material Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Peng Qian
- Hefei National Laboratory for Physical Science at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Science, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Material Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Ji-Hu Su
- CAS Key Laboratory of Microscale Magnetic Resonance, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhibin Li
- Hefei National Laboratory for Physical Science at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Science, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Material Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jiawei Wang
- Hefei National Laboratory for Physical Science at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Science, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Material Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhenggen Zha
- Hefei National Laboratory for Physical Science at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Science, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Material Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Zhiyong Wang
- Hefei National Laboratory for Physical Science at Microscale, CAS Key Laboratory of Soft Matter Chemistry & Center for Excellence in Molecular Synthesis of Chinese Academy of Science, Collaborative Innovation Center of Suzhou Nano Science and Technology & School of Chemistry and Material Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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