1
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Gorbachev D, Smith E, Argent SP, Newton GN, Lam HW. Synthesis of New Morphinan Opioids by TBADT‐Catalyzed Photochemical Functionalization at the Carbon Skeleton**. Chemistry 2022; 28:e202201478. [PMID: 35661287 PMCID: PMC9544987 DOI: 10.1002/chem.202201478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Dmitry Gorbachev
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Elliot Smith
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Stephen P. Argent
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Graham N. Newton
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
| | - Hon Wai Lam
- The GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry University of Nottingham Jubilee Campus, Triumph Road Nottingham NG7 2TU UK
- School of Chemistry University of Nottingham University Park Nottingham NG7 2RD UK
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2
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Varlet T, Bouchet D, Van Elslande E, Masson G. Decatungstate‐Photocatalyzed Dearomative Hydroacylation of Indoles: Direct Synthesis of 2‐Acylindolines. Chemistry 2022; 28:e202201707. [DOI: 10.1002/chem.202201707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas Varlet
- Institut de Chimie des Substances Naturelles (ICSN) CNRS University Paris-Saclay 1 Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Damien Bouchet
- Institut de Chimie des Substances Naturelles (ICSN) CNRS University Paris-Saclay 1 Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Elsa Van Elslande
- Institut de Chimie des Substances Naturelles (ICSN) CNRS University Paris-Saclay 1 Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
| | - Géraldine Masson
- Institut de Chimie des Substances Naturelles (ICSN) CNRS University Paris-Saclay 1 Avenue de la Terrasse 91198 Gif-sur-Yvette Cedex France
- HitCat Seqens-CNRS joint laboratory Seqens'Lab 8 Rue de Rouen 78440 Porcheville France
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3
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Özgen FF, Jorea A, Capaldo L, Kourist R, Ravelli D, Schmidt S. The Synthesis of Chiral γ‐Lactones by Merging Decatungstate Photocatalysis with Biocatalysis. ChemCatChem 2022. [DOI: 10.1002/cctc.202200855] [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)
- Fatma Feyza Özgen
- Rijksuniversiteit Groningen Chemical and Pharmaceutical Biology Antonius Deusinglaan 1 9713AV Groningen NETHERLANDS
| | - Alexandra Jorea
- University of Pavia: Universita degli Studi di Pavia Department of Chemistry viale Taramelli 12 27100 Pavia ITALY
| | - Luca Capaldo
- University of Pavia: Universita degli Studi di Pavia Department of Chemistry viale Taramelli 12 27100 Pavia ITALY
| | - Robert Kourist
- Graz University of Technology: Technische Universitat Graz Institut of Molecular Biotechnology Petersgass 14 8010 Graz AUSTRIA
| | - Davide Ravelli
- University of Pavia: Universita degli Studi di Pavia Department of Chemistry viale Taramelli 12 27100 Pavia ITALY
| | - Sandy Schmidt
- Rijksuniversiteit Groningen Chemical and Pharmaceutical Biology Antonius Deusinglaan 1 9713AV Groningen NETHERLANDS
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4
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Li X, Mao Y, Fan P, Wang C. Nickel/Photo‐Cocatalyzed Acyl C−H Benzylation of Aldehydes with Benzyl Chlorides. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Yujia Mao
- University of Science and Technology of China Chemistry CHINA
| | - Pei Fan
- Huainan Normal University Chemistry CHINA
| | - Chuan Wang
- University of Science and Technology of China Chemistry 96 Jinzhai Road 230026 Hefei CHINA
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5
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Luo X, Wang S, Lei A. Electrochemical‐induced hydroxysulfonylation of α‐CF3 alkenes to access tertiary β‐hydroxysulfones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101393] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Paul S, Guin J. A General Approach to Intermolecular Olefin Hydroacylation through Light-Induced HAT Initiation: An Efficient Synthesis of Long-Chain Aliphatic Ketones and Functionalized Fatty Acids. Chemistry 2021; 27:4412-4419. [PMID: 33350515 DOI: 10.1002/chem.202004946] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Indexed: 12/17/2022]
Abstract
Herein, an operationally simple, environmentally benign and effective method for intermolecular radical hydroacylation of unactivated substrates by employing photo-induced hydrogen atom transfer (HAT) initiation is described. The use of commercially available and inexpensive photoinitiators (Ph2 CO and NHPI) makes the process attractive. The olefin hydroacylation protocol applies to a wide array of substrates bearing numerous functional groups and many complex structural units. The reaction proves to be scalable (up to 5 g). Different functionalized fatty acids, petrochemicals and naturally occurring alkanes can be synthesized with this protocol. A radical chain mechanism is implicated in the process.
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Affiliation(s)
- Subhasis Paul
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
| | - Joyram Guin
- School of Chemical Sciences, Indian Association for the Cultivation of Science, 2A & 2B Raja S. C. Mullick Road, Jadavpur, Kolkata, 700032, India
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7
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8
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Rai VK, Verma F, Bhardiya SR, Sheshma H, Rai A, Singh M. Facile Synthesis of γ‐Ketonitriles in Water via C(sp
2
)–H Activation of Aromatic Aldehydes over Cu@g‐C
3
N
4
under Visible‐Light. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000945] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Vijai K. Rai
- Department of Chemistry Guru Ghasidas Vishwavidyalaya 495 009 Bilaspur C. G. India
| | - Fooleswar Verma
- Department of Chemistry Guru Ghasidas Vishwavidyalaya 495 009 Bilaspur C. G. India
| | - Smita R. Bhardiya
- Department of Chemistry Guru Ghasidas Vishwavidyalaya 495 009 Bilaspur C. G. India
| | - Harendra Sheshma
- School of Physical Sciences Jawaharlal Nehru University 110 067 New Delhi India
| | - Ankita Rai
- School of Physical Sciences Jawaharlal Nehru University 110 067 New Delhi India
| | - Manorama Singh
- Department of Chemistry Guru Ghasidas Vishwavidyalaya 495 009 Bilaspur C. G. India
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9
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Sideri IK, Voutyritsa E, Kokotos CG. Photochemical Hydroacylation of Michael Acceptors Utilizing an Aldehyde as Photoinitiator. CHEMSUSCHEM 2019; 12:4194-4201. [PMID: 31353792 DOI: 10.1002/cssc.201901725] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/26/2019] [Indexed: 06/10/2023]
Abstract
The hydroacylation of Michael acceptors constitutes a useful tool for the formation of new C-C bonds. In this work, an environmentally friendly procedure was developed, utilizing 4cyanobenzaldehyde as the photoinitiator and household bulbs as the irradiation source. A great variety of substrates was well-tolerated, leading to good yields, and mechanistic experiments were performed to elucidate the catalyst's possible mechanistic pathway. Moreover, the inherent selectivity challenge regarding α,α-disubstituted aldehydes (decarbonylation problem) was studied and addressed.
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Affiliation(s)
- Ioanna K Sideri
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771, Athens, Greece
| | - Errika Voutyritsa
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771, Athens, Greece
| | - Christoforos G Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, 15771, Athens, Greece
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10
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He X, Cai B, Yang Q, Wang L, Xuan J. Visible‐Light‐Promoted Cascade Radical Cyclization: Synthesis of 1,4‐Diketones Containing Chroman‐4‐One Skeletons. Chem Asian J 2019; 14:3269-3273. [DOI: 10.1002/asia.201901078] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 08/28/2019] [Indexed: 02/03/2023]
Affiliation(s)
- Xiang‐Kui He
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic, Hybrid Functionalized MaterialsCollege of Chemistry & Chemical EngineeringAnhui University Hefei Anhui 230601 P. R. China
| | - Bao‐Gui Cai
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic, Hybrid Functionalized MaterialsCollege of Chemistry & Chemical EngineeringAnhui University Hefei Anhui 230601 P. R. China
| | - Qing‐Qing Yang
- China Three Gorges UniversityCollege of Materials and Chemical EngineeringKey laboratory of inorganic nonmetallic crystalline and energy conversion materials Yichang Hubei 443002 P. R. China
| | - Long Wang
- China Three Gorges UniversityCollege of Materials and Chemical EngineeringKey laboratory of inorganic nonmetallic crystalline and energy conversion materials Yichang Hubei 443002 P. R. China
| | - Jun Xuan
- Anhui Province Key Laboratory of Chemistry for Inorganic/Organic, Hybrid Functionalized MaterialsCollege of Chemistry & Chemical EngineeringAnhui University Hefei Anhui 230601 P. R. China
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University)Ministry of Education Hefei 230601 P. R. China
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11
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Feng Y, Zhang H, Yu Y, Yang L, Cui X. Ferrocene-Initiated Oxidative Cyclization of Benzaldehyde with Alkyne: New Strategy to Substituted Indenones. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900281] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yadong Feng
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences; Huaqiao University; 361021 Xiamen P. R. China
- College of Environment and Public Health; Department of Science and Technology for Inspection; Xiamen Huaxia University; 361024 Xiamen China
| | - Hong Zhang
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences; Huaqiao University; 361021 Xiamen P. R. China
| | - Yunliang Yu
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences; Huaqiao University; 361021 Xiamen P. R. China
| | - Lei Yang
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences; Huaqiao University; 361021 Xiamen P. R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education; Key Laboratory of Fujian Molecular Medicine; Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences; Huaqiao University; 361021 Xiamen P. R. China
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12
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Goti G, Bieszczad B, Vega‐Peñaloza A, Melchiorre P. Stereocontrolled Synthesis of 1,4-Dicarbonyl Compounds by Photochemical Organocatalytic Acyl Radical Addition to Enals. Angew Chem Int Ed Engl 2019; 58:1213-1217. [PMID: 30419156 PMCID: PMC6468318 DOI: 10.1002/anie.201810798] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/07/2018] [Indexed: 01/14/2023]
Abstract
We report a visible-light-mediated organocatalytic strategy for the enantioselective acyl radical conjugate addition to enals, leading to valuable 1,4-dicarbonyl compounds. The process capitalizes upon the excited-state reactivity of 4-acyl-1,4-dihydropyridines that, upon visible-light absorption, can trigger the generation of acyl radicals. By means of a chiral amine catalyst, iminium ion activation of enals ensures a stereoselective radical trap. We also demonstrate how the combination of this acylation process with a second catalyst-controlled bond-forming event allows to selectively access the full matrix of all possible stereoisomers of the resulting 2,3-substituted 1,4-dicarbonyl products.
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Affiliation(s)
- Giulio Goti
- ICIQ – Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
| | - Bartosz Bieszczad
- ICIQ – Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
| | - Alberto Vega‐Peñaloza
- ICIQ – Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
| | - Paolo Melchiorre
- ICREA – Catalan Institution for Research and Advanced StudiesPasseig Lluís Companys 2308010BarcelonaSpain
- IIT – Italian Institute of TechnologyLaboratory of Asymmetric Catalysis and Photochemistryvia Morego 3016163GenoaItaly
- ICIQ – Institute of Chemical Research of Catalonia the Barcelona Institute of Science and TechnologyAvenida Països Catalans 1643007TarragonaSpain
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13
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Goti G, Bieszczad B, Vega‐Peñaloza A, Melchiorre P. Stereocontrolled Synthesis of 1,4‐Dicarbonyl Compounds by Photochemical Organocatalytic Acyl Radical Addition to Enals. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810798] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Giulio Goti
- ICIQ – Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Bartosz Bieszczad
- ICIQ – Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Alberto Vega‐Peñaloza
- ICIQ – Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
| | - Paolo Melchiorre
- ICREA – Catalan Institution for Research and Advanced Studies Passeig Lluís Companys 23 08010 Barcelona Spain
- IIT – Italian Institute of TechnologyLaboratory of Asymmetric Catalysis and Photochemistry via Morego 30 16163 Genoa Italy
- ICIQ – Institute of Chemical Research of Catalonia the Barcelona Institute of Science and Technology Avenida Països Catalans 16 43007 Tarragona Spain
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14
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Zhang L, Liu S, Zhao Z, Su H, Hao J, Wang Y. (Salen)Mn(iii)-catalyzed chemoselective acylazidation of olefins. Chem Sci 2018; 9:6085-6090. [PMID: 30090296 PMCID: PMC6053955 DOI: 10.1039/c8sc01882k] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 06/18/2018] [Indexed: 12/14/2022] Open
Abstract
We describe a (salen)Mn(iii)-catalyzed three-component reaction of aldehydes, olefins, and sodium azide for the installation of two useful groups (C[double bond, length as m-dash]O and N3) into the double bond. Traditionally, (salen)Mn(iii) in conjunction with iodosobenzene is a classical catalysis system for epoxidation of olefins. Owing to the highly competitive oxygenation approaches, it is a true challenge to establish a distinct strategy for the exploration of new olefin transformations based on this (salen)Mn(iii) catalysis system. Herein, the key to this (salen)Mn(iii)-catalyzed acylazidation of olefins was the rational application of the distinct reactivity of oxomanganese(v) species which is capable of abstracting a hydrogen atom from a substrate C-H bond. This chemoselective reaction occurred in a precisely designed reaction sequence and tolerates complex molecular structures.
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Affiliation(s)
- Liang Zhang
- School of Chemistry and Chemical Engineering , Key Laboratory of the Colloid and Interface Chemistry , Shandong University , 27 Shanda Nanlu , Jinan 250100 , Shandong , China .
| | - Shuya Liu
- School of Chemistry and Chemical Engineering , Key Laboratory of the Colloid and Interface Chemistry , Shandong University , 27 Shanda Nanlu , Jinan 250100 , Shandong , China .
| | - Zhiguo Zhao
- School of Chemistry and Chemical Engineering , Key Laboratory of the Colloid and Interface Chemistry , Shandong University , 27 Shanda Nanlu , Jinan 250100 , Shandong , China .
| | - Hongmei Su
- School of Chemistry and Chemical Engineering , Key Laboratory of the Colloid and Interface Chemistry , Shandong University , 27 Shanda Nanlu , Jinan 250100 , Shandong , China .
| | - Jingcheng Hao
- School of Chemistry and Chemical Engineering , Key Laboratory of the Colloid and Interface Chemistry , Shandong University , 27 Shanda Nanlu , Jinan 250100 , Shandong , China .
| | - Yao Wang
- School of Chemistry and Chemical Engineering , Key Laboratory of the Colloid and Interface Chemistry , Shandong University , 27 Shanda Nanlu , Jinan 250100 , Shandong , China .
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15
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Wang CM, Song D, Xia PJ, Wang J, Xiang HY, Yang H. Visible-Light-Promoted Synthesis of 1,4-Dicarbonyl Compounds via Conjugate Addition of Aroyl Chlorides. Chem Asian J 2018; 13:271-274. [DOI: 10.1002/asia.201701738] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 01/07/2018] [Indexed: 01/14/2023]
Affiliation(s)
- Chao-Ming Wang
- College of Chemistry and Chemical Engineering; Central South University; Changsha 410083 P. R. China
| | - Dan Song
- College of Chemistry and Chemical Engineering; Central South University; Changsha 410083 P. R. China
| | - Peng-Ju Xia
- College of Chemistry and Chemical Engineering; Central South University; Changsha 410083 P. R. China
| | - Jing Wang
- College of Chemistry and Chemical Engineering; Central South University; Changsha 410083 P. R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering; Central South University; Changsha 410083 P. R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering; Central South University; Changsha 410083 P. R. China
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16
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Papadopoulos GN, Voutyritsa E, Kaplaneris N, Kokotos CG. Green Photo-Organocatalytic C−H Activation of Aldehydes: Selective Hydroacylation of Electron-Deficient Alkenes. Chemistry 2018; 24:1726-1731. [DOI: 10.1002/chem.201705634] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Giorgos N. Papadopoulos
- Laboratory of Organic Chemistry, Department of Chemistry; National and Kapodistrian University of Athens, Panepistimiopolis; 15771 Athens Greece
| | - Errika Voutyritsa
- Laboratory of Organic Chemistry, Department of Chemistry; National and Kapodistrian University of Athens, Panepistimiopolis; 15771 Athens Greece
| | - Nikolaos Kaplaneris
- Laboratory of Organic Chemistry, Department of Chemistry; National and Kapodistrian University of Athens, Panepistimiopolis; 15771 Athens Greece
| | - Christoforos G. Kokotos
- Laboratory of Organic Chemistry, Department of Chemistry; National and Kapodistrian University of Athens, Panepistimiopolis; 15771 Athens Greece
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17
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Vu MD, Das M, Liu XW. Direct Aldehyde Csp 2 -H Functionalization through Visible-Light-Mediated Photoredox Catalysis. Chemistry 2017; 23:15899-15902. [PMID: 29057525 DOI: 10.1002/chem.201704224] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Indexed: 12/22/2022]
Abstract
The development of methods for carbon-carbon bond formation under benign conditions is an ongoing challenge for synthetic chemists. In recent years there has been considerable interest in using selective C-H activation as a direct route for generating reactive intermediates. Herein, the use of visible-light-mediated dual photoredox organocatalysis as a mild and effective method for Csp2 -H activation of aldehydes is reported, resulting in the generation of acyl radicals. These nucleophilic acyl radical species can undergo either addition to electrophilic alkenes or nickel-catalyzed cross-coupling reactions to provide a quick access to broad range of unsymmetrical ketones, which are abundantly found in many organic building blocks.
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Affiliation(s)
- Minh Duy Vu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Mrinmoy Das
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Xue-Wei Liu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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18
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Mukherjee S, Garza-Sanchez RA, Tlahuext-Aca A, Glorius F. Alkinylierung von Csp2
(O)-H-Bindungen durch Photoredox-vermittelten Wasserstoffatomtransfer. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Satobhisha Mukherjee
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - R. Aleyda Garza-Sanchez
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Adrian Tlahuext-Aca
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
| | - Frank Glorius
- Organisch-Chemisches Institut; Westfälische Wilhelms-Universität Münster; Corrensstraße 40 48149 Münster Deutschland
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19
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Mukherjee S, Garza-Sanchez RA, Tlahuext-Aca A, Glorius F. Alkynylation of Csp2 (O)-H Bonds Enabled by Photoredox-Mediated Hydrogen-Atom Transfer. Angew Chem Int Ed Engl 2017; 56:14723-14726. [PMID: 28929553 DOI: 10.1002/anie.201708037] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Indexed: 11/08/2022]
Abstract
The development of new hydrogen-atom transfer (HAT) strategies within the framework of photoredox catalysis is highly appealing for its power to activate a desired C-H bond in the substrate leading to its selective functionalization. Reported here is the first photoredox-mediated hydrogen-atom transfer method for the efficient synthesis of ynones, ynamides, and ynoates with high regio- and chemoselectivity by direct functionalization of Csp2 (O)-H bonds. The broad synthetic application of this method has been demonstrated by the selective functionalization of C(O)-H bonds within complex molecular scaffolds.
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Affiliation(s)
- Satobhisha Mukherjee
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - R Aleyda Garza-Sanchez
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Adrian Tlahuext-Aca
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149, Münster, Germany
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20
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Grélaud S, Lusseau J, Massip S, Landais Y. Acyl Radical Addition onto Aza-Baylis-Hillman Adducts: A Stereocontrolled Access to 2,3,5-Trisubstituted Pyrrolidines. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700362] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Simon Grélaud
- Institute of Molecular Sciences; UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
| | - Jonathan Lusseau
- Institute of Molecular Sciences; UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
| | - Stéphane Massip
- Institut Européen de Chimie et Biologie; 2, Rue Robert Escarpit 33607 Pessac France
| | - Yannick Landais
- Institute of Molecular Sciences; UMR-CNRS 5255; University of Bordeaux; 351 Cours de la libération 33405 Talence cedex France
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21
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Pettersson F, Bergonzini G, Cassani C, Wallentin CJ. Redox-Neutral Dual Functionalization of Electron-Deficient Alkenes. Chemistry 2017; 23:7444-7447. [PMID: 28402066 PMCID: PMC5574022 DOI: 10.1002/chem.201701589] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Indexed: 11/10/2022]
Abstract
Visible‐light photoredox catalysis has been utilized in a new multicomponent reaction forming β‐functionalized δ‐diketones under mild conditions in an operationally convenient manner. Single‐electron reduction of in situ generated carboxylic acid derivatives forms acyl radicals that react further via 1,2‐acylalkylation of olefins in an intermolecular, three‐components cascade reaction, giving valuable synthetic entities from readily available starting materials. A diverse set of substrates has been used, demonstrating robust methodology with broad substrate scope.
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Affiliation(s)
- Fredrik Pettersson
- Department of Chemistry and Molecular Biology, Gothenburg University, 41296, Gothenburg, Sweden
| | - Giulia Bergonzini
- Cardiovascular and Metabolic Diseases, Innovative Medicines and Early Development Biotech Unit, AstraZeneca, Pepparedsleden 1, 43183, Mölndal, Sweden
| | - Carlo Cassani
- Department of Chemistry and Molecular Biology, Gothenburg University, 41296, Gothenburg, Sweden
| | - Carl-Johan Wallentin
- Department of Chemistry and Molecular Biology, Gothenburg University, 41296, Gothenburg, Sweden
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22
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Grélaud S, Lusseau J, Landais Y. Acyl Radical Addition to Activated Olefins: A Stereocontrolled Route to Polysubstituted Tetrahydrofurans and Lactones, and Application to the Total Synthesis of (+)-No. 2106 A. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601624] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Simon Grélaud
- Institute of Molecular Sciences, UMR-CNRS-5255; University of Bordeaux; 351 cours de la libération 33405 Talence CEDEX France
| | - Jonathan Lusseau
- Institute of Molecular Sciences, UMR-CNRS-5255; University of Bordeaux; 351 cours de la libération 33405 Talence CEDEX France
| | - Yannick Landais
- Institute of Molecular Sciences, UMR-CNRS-5255; University of Bordeaux; 351 cours de la libération 33405 Talence CEDEX France
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23
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Selvakumar S, Sakamoto R, Maruoka K. Diastereoselective Radical Hydroacylation of Alkylidenemalonates with Aliphatic Aldehydes Initiated by Photolysis of Hypervalent Iodine(III) Reagents. Chemistry 2016; 22:6552-5. [PMID: 27097595 DOI: 10.1002/chem.201600425] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Indexed: 01/20/2023]
Abstract
Diastereoselective radical hydroacylation of chiral alkylidenemalonates with aliphatic aldehydes is realized by the combination of a hypervalent iodine(III) reagent and UV-light irradiation. The reaction is initiated by the photolysis of hypervalent iodine(III) reagents under mild, metal-free conditions, and is the first example of diastereoselective addition of acyl radicals to olefins to afford chiral ketones in a highly stereoselective fashion. The obtained optically active ketones are useful chiral synthons, as exemplified by the short formal synthesis of (-)-methyleneolactocin.
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Affiliation(s)
- Sermadurai Selvakumar
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan), Fax: (+81)75-753-4041
| | - Ryu Sakamoto
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan), Fax: (+81)75-753-4041
| | - Keiji Maruoka
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto, 606-8502, Japan), Fax: (+81)75-753-4041.
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24
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Bergonzini G, Cassani C, Lorimer-Olsson H, Hörberg J, Wallentin CJ. Visible-Light-Mediated Photocatalytic Difunctionalization of Olefins by Radical Acylarylation and Tandem Acylation/Semipinacol Rearrangement. Chemistry 2016; 22:3292-3295. [PMID: 26781301 DOI: 10.1002/chem.201504985] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Indexed: 11/11/2022]
Abstract
A novel method for the mild photoredox-mediated tandem radical acylarylation and tandem acylation/semipinacol rearrangement has been developed. The synthesis of highly functionalized ketones bearing all-carbon α- or β-quaternary centers has been achieved using easily available symmetric aromatic carboxylic anhydrides as the acyl radical source. The method allows for a straightforward introduction of the keto functionality and concomitant construction of molecular complexity in a single operation.
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Affiliation(s)
- Giulia Bergonzini
- Department of Chemistry and Molecular Biology, Gothenburg University, 412 58, Gothenburg, Sweden
| | - Carlo Cassani
- Department of Chemistry and Molecular Biology, Gothenburg University, 412 58, Gothenburg, Sweden
| | - Haldor Lorimer-Olsson
- Department of Chemistry and Molecular Biology, Gothenburg University, 412 58, Gothenburg, Sweden
| | - Johanna Hörberg
- Department of Chemistry and Molecular Biology, Gothenburg University, 412 58, Gothenburg, Sweden
| | - Carl-Johan Wallentin
- Department of Chemistry and Molecular Biology, Gothenburg University, 412 58, Gothenburg, Sweden.
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25
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Bergonzini G, Cassani C, Wallentin CJ. Acyl Radicals from Aromatic Carboxylic Acids by Means of Visible-Light Photoredox Catalysis. Angew Chem Int Ed Engl 2015; 54:14066-9. [PMID: 26403148 PMCID: PMC4648026 DOI: 10.1002/anie.201506432] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Revised: 08/26/2015] [Indexed: 11/28/2022]
Abstract
Simple and abundant carboxylic acids have been used as acyl radical precursor by means of visible-light photoredox catalysis. By the transient generation of a reactive anhydride intermediate, this redox-neutral approach offers a mild and rapid entry to high-value heterocyclic compounds without the need of UV irradiation, high temperature, high CO pressure, tin reagents, or peroxides.
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Affiliation(s)
- Giulia Bergonzini
- Department of Chemistry and Molecular Biology, Gothenburg University, 41258 Gothenburg (Sweden)
| | - Carlo Cassani
- Department of Chemistry and Molecular Biology, Gothenburg University, 41258 Gothenburg (Sweden)
| | - Carl-Johan Wallentin
- Department of Chemistry and Molecular Biology, Gothenburg University, 41258 Gothenburg (Sweden).
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26
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Bonassi F, Ravelli D, Protti S, Fagnoni M. Decatungstate Photocatalyzed Acylations and Alkylations in Flow viaHydrogen Atom Transfer. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500483] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Bergonzini G, Cassani C, Wallentin C. Acyl Radicals from Aromatic Carboxylic Acids by Means of Visible‐Light Photoredox Catalysis. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506432] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Giulia Bergonzini
- Department of Chemistry and Molecular Biology, Gothenburg University, 41258 Gothenburg (Sweden)
| | - Carlo Cassani
- Department of Chemistry and Molecular Biology, Gothenburg University, 41258 Gothenburg (Sweden)
| | - Carl‐Johan Wallentin
- Department of Chemistry and Molecular Biology, Gothenburg University, 41258 Gothenburg (Sweden)
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28
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Jiang J, Ramozzi R, Moteki S, Usui A, Maruoka K, Morokuma K. Mechanism of Metal-Free C–H Activation of Branched Aldehydes and Acylation of Alkenes Using Hypervalent Iodine Compound: A Theoretical Study. J Org Chem 2015; 80:9264-71. [DOI: 10.1021/acs.joc.5b01695] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Julong Jiang
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho
34-4, Kyoto 606-8103, Japan
| | - Romain Ramozzi
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho
34-4, Kyoto 606-8103, Japan
| | - Shin Moteki
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Asuka Usui
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Department
of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Keiji Morokuma
- Fukui
Institute for Fundamental Chemistry, Kyoto University, Takano-Nishihiraki-cho
34-4, Kyoto 606-8103, Japan
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29
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Tang RJ, Kang L, Yang L. Metal-Free Oxidative Decarbonylative Coupling of Aliphatic Aldehydes with Azaarenes: Successful Minisci-Type Alkylation of Various Heterocycles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500268] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Munir S, Dionysiou DD, Khan SB, Shah SM, Adhikari B, Shah A. Development of photocatalysts for selective and efficient organic transformations. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 148:209-222. [PMID: 25974905 DOI: 10.1016/j.jphotobiol.2015.04.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Revised: 04/04/2015] [Accepted: 04/19/2015] [Indexed: 11/18/2022]
Abstract
One of the main goals of organic chemists is to find easy, environmentally friendly, and cost effective methods for the synthesis of industrially important compounds. Photocatalysts have brought revolution in this regard as they make use of unlimited source of energy (the solar light) to carry out the synthesis of organic compounds having otherwise complex synthetic procedures. However, selectivity of the products has been a major issue since the beginning of photocatalysis. The present article encompasses state of the art accomplishments in harvesting light energy for selective organic transformations using photocatalysts. Several approaches for the development of photocatalysts for selective organic conversions have been critically discussed with the objective of developing efficient, selective, environmental friendly and high yield photocatalytic methodologies.
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Affiliation(s)
- Shamsa Munir
- Department of Chemistry, Quaid-i-Azam University, 45320 Islamabad, Pakistan
| | - Dionysios D Dionysiou
- Department of Biomedical, Chemical and Environmental Engineering, Cincinnati, OH 45221-0012, USA.
| | - Sher Bahadar Khan
- Center of Excellence for Advanced Materials Research (CEAMR) and Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Syed Mujtaba Shah
- Department of Chemistry, Quaid-i-Azam University, 45320 Islamabad, Pakistan
| | - Bimalendu Adhikari
- Department of Physical and Environmental Sciences, University of Toronto, Scarborough, 1265 Military Trail, Toronto M1C 1A4, Canada
| | - Afzal Shah
- Department of Chemistry, Quaid-i-Azam University, 45320 Islamabad, Pakistan; Department of Physical and Environmental Sciences, University of Toronto, Scarborough, 1265 Military Trail, Toronto M1C 1A4, Canada.
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31
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Suzuki K, Jeong J, Yamaguchi K, Mizuno N. Visible-light-responsive multielectron redox catalysis of lacunary polyoxometalates induced by substrate coordination to their lacuna. Chem Asian J 2014; 10:144-8. [PMID: 25292106 DOI: 10.1002/asia.201403072] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Indexed: 02/04/2023]
Abstract
We describe herein the efficient visible-light-responsive polyoxometalate-based multielectron photoredox catalysis induced by in situ coordination of alcohols to the lacuna of TBA4 H4 [γ-SiW10 O36 ] (I, TBA=tetra-n-butylammonium). The coordination of alcohols to the lacuna of I generated a new highest occupied molecular orbital as the electron donor level and enabled the visible-light-responsive multielectron transfer from alcohols to I, which could be utilized for aerobic alcohol oxidation and one-pot synthesis of N-arylimines starting from nitroarenes and primary alcohols.
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Affiliation(s)
- Kosuke Suzuki
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan), Fax: (+81) 3-5841-7220
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32
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Moteki SA, Usui A, Selvakumar S, Zhang T, Maruoka K. Metal-free C-H bond activation of branched aldehydes with a hypervalent iodine(III) catalyst under visible-light photolysis: successful trapping with electron-deficient olefins. Angew Chem Int Ed Engl 2014; 53:11060-4. [PMID: 25155904 DOI: 10.1002/anie.201406513] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Indexed: 11/08/2022]
Abstract
Direct acyl radical formation of linear aldehydes (RCH2-CHO) and subsequent hydroacylation with electron-deficient olefins can be effected with various types of metal and nonmetal catalysts/reagents. In marked contrast, however, no successful reports on the use of branched aldehydes have been made thus far because of their strong tendency of generating alkyl radicals through the facile decarbonylation of acyl radicals. Here, use of a hypervalent iodine(III) catalyst under visible light photolysis allows a mild way of generating acyl radicals from various branched aldehydes, thereby giving the corresponding hydroacylated products almost exclusively. Another characteristic feature of this approach is the catalytic use of hypervalent iodine(III) reagent, which is a rare example on the generation of radicals in hypervalent iodine chemistry.
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Affiliation(s)
- Shin A Moteki
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502 (Japan)
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33
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Moteki SA, Usui A, Selvakumar S, Zhang T, Maruoka K. Metal-Free CH Bond Activation of Branched Aldehydes with a Hypervalent Iodine(III) Catalyst under Visible-Light Photolysis: Successful Trapping with Electron-Deficient Olefins. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406513] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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34
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Suzuki K, Tang F, Kikukawa Y, Yamaguchi K, Mizuno N. Visible-Light-Induced Photoredox Catalysis with a Tetracerium-Containing Silicotungstate. Angew Chem Int Ed Engl 2014; 53:5356-60. [DOI: 10.1002/anie.201403215] [Citation(s) in RCA: 128] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Indexed: 01/06/2023]
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35
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Suzuki K, Tang F, Kikukawa Y, Yamaguchi K, Mizuno N. Visible-Light-Induced Photoredox Catalysis with a Tetracerium-Containing Silicotungstate. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403215] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Fagnoni M, Bonassi F, Palmieri A, Protti S, Ravelli D, Ballini R. Flow Synthesis of Substituted γ-Lactones by Consecutive Photocatalytic/Reductive Reactions. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300859] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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37
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38
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Ravelli D, Montanaro S, Tomasi C, Galinetto P, Quartarone E, Merli D, Mustarelli P, Fagnoni M. One-Step Decatungstate-Photomediated PEGylation of Single-Walled Carbon Nanotubes. Chempluschem 2012. [DOI: 10.1002/cplu.201100040] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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39
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Ravelli D, Montanaro S, Zema M, Fagnoni M, Albini A. A Tin-Free, Radical Photocatalyzed Addition to Vinyl Sulfones. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100591] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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40
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Alvarez LX, Kudrik EV, Sorokin AB. Novel Reactivity of N-Bridged Diiron Phthalocyanine in the Activation of CH Bonds: Hydroacylation of Olefins as an Example of the Efficient Formation of CC Bonds. Chemistry 2011; 17:9298-301. [DOI: 10.1002/chem.201100650] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 05/25/2011] [Indexed: 11/10/2022]
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41
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Ryu I, Tani A, Fukuyama T, Ravelli D, Fagnoni M, Albini A. Atom-Economical Synthesis of Unsymmetrical Ketones through Photocatalyzed CH Activation of Alkanes and Coupling with CO and Electrophilic Alkenes. Angew Chem Int Ed Engl 2011; 50:1869-72. [DOI: 10.1002/anie.201004854] [Citation(s) in RCA: 134] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 10/30/2010] [Indexed: 11/06/2022]
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42
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Ryu I, Tani A, Fukuyama T, Ravelli D, Fagnoni M, Albini A. Atom-Economical Synthesis of Unsymmetrical Ketones through Photocatalyzed CH Activation of Alkanes and Coupling with CO and Electrophilic Alkenes. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201004854] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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43
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Ravelli D, Albini A, Fagnoni M. Smooth Photocatalytic Preparation of 2‐Substituted 1,3‐Benzodioxoles. Chemistry 2010; 17:572-9. [DOI: 10.1002/chem.201002546] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2010] [Indexed: 11/12/2022]
Affiliation(s)
- Davide Ravelli
- Department of Organic Chemistry, University of Pavia, Via Taramelli 10 (Italy), Fax: (+39) 0382‐987316
| | - Angelo Albini
- Department of Organic Chemistry, University of Pavia, Via Taramelli 10 (Italy), Fax: (+39) 0382‐987316
| | - Maurizio Fagnoni
- Department of Organic Chemistry, University of Pavia, Via Taramelli 10 (Italy), Fax: (+39) 0382‐987316
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44
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Jahjah R, Gassama A, Bulach V, Suzuki C, Abe M, Hoffmann N, Martinez A, Nuzillard JM. Stereoselective Triplet-Sensitised Radical Reactions of Furanone Derivatives. Chemistry 2010; 16:3341-54. [DOI: 10.1002/chem.200903045] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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45
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Dondi D, Ravelli D, Fagnoni M, Mella M, Molinari A, Maldotti A, Albini A. Regio- and Stereoselectivity in the Decatungstate Photocatalyzed Alkylation of Alkenes by Alkylcyclohexanes. Chemistry 2009; 15:7949-7957. [DOI: 10.1002/chem.200900810] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Angioni S, Ravelli D, Emma D, Dondi D, Fagnoni M, Albini A. Tetrabutylammonium Decatungstate (Chemo)selective Photocatalyzed, Radical CH Functionalization in Amides. Adv Synth Catal 2008. [DOI: 10.1002/adsc.200800378] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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