1
|
Xiong SS, Jian C, Mo YQ, Hu W, He YK, Ren BY, Yang YM, Li S. Phosphoric Acid-Catalyzed Alkene Difunctionalization of 2-Vinylpyridines via HOMO/LUMO Biactivated Diels-Alder Reaction. J Org Chem 2024. [PMID: 38937142 DOI: 10.1021/acs.joc.4c00929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The difunctionalization of vinylpyridines based on the cyclization strategy remains rare and underdeveloped, in contrast to the well-developed hydrogen functionalization. Current exploration on [4 + 2] cyclization of vinylpyridines mainly relies on extremely high temperatures and the LUMO activation of vinylpyridines using boron trifluoride as a strong Lewis acid. Herein, we established a phosphoric acid-catalyzed [4 + 2] cyclization reaction of 3-vinyl-1H-indoles and 2-vinylpyridines by means of the LUMO/HOMO bifunctional activation model. This protocol features mild reaction conditions, high functional group tolerance, broad substrate compatibility, and high diastereoselectivity, enabling the efficient construction of various functionalized pyridine-substituted tetrahydrocarbazoles with prominent potential in drug discovery.
Collapse
Affiliation(s)
- Shu-Shu Xiong
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Cui Jian
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yan-Qing Mo
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Wei Hu
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yong-Ke He
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Bao-Yi Ren
- College of Science, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Yu-Ming Yang
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| | - Shaoyu Li
- School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China
| |
Collapse
|
2
|
Singh PP, Sinha S, Gahtori P, Tivari S, Srivastava V. Recent advances of decatungstate photocatalyst in HAT process. Org Biomol Chem 2024; 22:2523-2538. [PMID: 38456306 DOI: 10.1039/d4ob00213j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
The decatungstate anion (W10O324-) appears to exhibit especially interesting properties as a photocatalyst. Because of its unique photocatalytic properties, it is now recognised as a promising tool in organic chemistry. This study examines recent advances in decatungstate chemistry, primarily concerned with synthetic and, to some degree, mechanistic challenges. In this short review we have selected to give a number of illustrative examples that demonstrate the various applications of decatungstate in the hydrogen atom transfer (HAT) process.
Collapse
Affiliation(s)
- Praveen P Singh
- Department of Chemistry, United College of Engineering & Research, Prayagraj, U.P.-211010, India.
| | - Surabhi Sinha
- Department of Chemistry, United College of Engineering & Research, Prayagraj, U.P.-211010, India.
| | - Prashant Gahtori
- School of Pharmacy, Graphic Era Hill University, Dehradun, 248002 Uttarakhand, India
| | - Shraddha Tivari
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, U.P.-211002, India.
| | - Vishal Srivastava
- Department of Chemistry, CMP Degree College, University of Allahabad, Prayagraj, U.P.-211002, India.
| |
Collapse
|
3
|
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.
Collapse
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
| |
Collapse
|
4
|
Yuan Z, Britton R. Development and application of decatungstate catalyzed C-H 18F- and 19F-fluorination, fluoroalkylation and beyond. Chem Sci 2023; 14:12883-12897. [PMID: 38023504 PMCID: PMC10664588 DOI: 10.1039/d3sc04027e] [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: 08/02/2023] [Accepted: 10/11/2023] [Indexed: 12/01/2023] Open
Abstract
Over the past few decades, photocatalytic C-H functionalization reactions have received increasing attention due to the often mild reaction conditions and complementary selectivities to conventional functionalization processes. Now, photocatalytic C-H functionalization is a widely employed tool, supporting activities ranging from complex molecule synthesis to late-stage structure-activity relationship studies. In this perspective, we will discuss our efforts in developing a photocatalytic decatungstate catalyzed C-H fluorination reaction as well as its practical application realized through collaborations with industry partners at Hoffmann-La Roche and Merck, and extension to radiofluorination with radiopharmaceutical chemists and imaging experts at TRIUMF and the BC Cancer Agency. Importantly, we feel that our efforts address a question of utility posed by Professor Tobias Ritter in "Late-Stage Fluorination: Fancy Novelty or Useful Tool?" (ACIE, 2015, 54, 3216). In addition, we will discuss decatungstate catalyzed C-H fluoroalkylation and the interesting electrostatic effects observed in decatungstate-catalyzed C-H functionalization. We hope this perspective will inspire other researchers to explore the use of decatungstate for the purposes of photocatalytic C-H functionalization and further advance the exploitation of electrostatic effects for both rate acceleration and directing effects in these reactions.
Collapse
Affiliation(s)
- Zheliang Yuan
- Department of Chemistry, Simon Fraser University Burnaby British Columbia V5A 1S2 Canada
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University Jinhua Zhejiang 321004 China
| | - Robert Britton
- Department of Chemistry, Simon Fraser University Burnaby British Columbia V5A 1S2 Canada
| |
Collapse
|
5
|
Zhao W, Wang W, Zhou H, Liu Q, Ma Z, Huang H, Chang M. An Asymmetric Hydrogenation/N-Alkylation Sequence for a Step-Economical Route to Indolizidines and Quinolizidines. Angew Chem Int Ed Engl 2023; 62:e202308836. [PMID: 37643998 DOI: 10.1002/anie.202308836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 08/31/2023]
Abstract
The direct catalytic asymmetric hydrogenation of pyridines for the synthesis of piperidines remains a challenge. Herein, we report a one-pot asymmetric hydrogenation of pyridines with subsequent N-alkylation using a traceless Brønsted acid activation strategy. Catalyzed by an iridium-BINAP complex, the substrates undergo ketone reduction, cyclization and pyridine hydrogenation in sequence to form indolizidines and quinolizidines. The absolute configuration of the stereocenter of the alcohol is retained and influences the formation of the second stereocenter. Experimental and theoretical mechanistic studies reveal that the chloride anion and certain noncovalent interactions govern the stereoselectivity of the cascade reaction throughout the catalytic process.
Collapse
Affiliation(s)
- Wei Zhao
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Wenji Wang
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Huan Zhou
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Qishan Liu
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Zhiqing Ma
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| | - Haizhou Huang
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
| | - Mingxin Chang
- College of Chemistry and Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling, Shaanxi, 712100, P. R. China
- College of Plant Protection, Shaanxi Research Center of Biopesticide Engineering and Technology, Northwest A&F University, Yangling, Shaanxi, 712100, P. R. China
| |
Collapse
|
6
|
Li FX, Wang X, Lin J, Lou X, Ouyang J, Hu G, Quan Y. Selective multifunctionalization of N-heterocyclic carbene boranes via the intermediacy of boron-centered radicals. Chem Sci 2023; 14:6341-6347. [PMID: 37325159 PMCID: PMC10266453 DOI: 10.1039/d3sc01132a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 05/17/2023] [Indexed: 06/17/2023] Open
Abstract
The selective difunctionalization of N-heterocyclic carbene (NHC) boranes with alkenes has been achieved via decatungstate and thiol synergistic catalysis. The catalytic system also allows stepwise trifunctionalization, leading to complex NHC boranes with three different functional groups which are challenging to prepare by other methods. The strong hydrogen-abstracting ability of the excited decatungstate enables the generation of boryl radicals from mono- and di-substituted boranes for realizing borane multifunctionalization. This proof-of-principle research provides a new chance for fabricating unsymmetrical boranes and developing boron-atom-economic synthesis.
Collapse
Affiliation(s)
- Feng-Xing Li
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
| | - Xinmou Wang
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
| | - Jiaxin Lin
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
| | - Xiangyu Lou
- Department of Chemistry, The Chinese University of Hong Kong Shatin, N.T. Hong Kong SAR China
| | - Jing Ouyang
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
| | - Guanwen Hu
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
| | - Yangjian Quan
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
| |
Collapse
|
7
|
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.
Collapse
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
| |
Collapse
|
8
|
Mao Y, Fan P, Wang C. Photocatalyzed Formal All-Carbon [3+2] Cycloaddition of Aromatic Aldehydes with Arylethynyl Silanes. Org Lett 2022; 24:9413-9418. [PMID: 36534612 DOI: 10.1021/acs.orglett.2c03807] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Herein, we report a photoinduced TBADT-catalyzed formal all-carbon [3+2] cycloaddition of aromatic aldehydes and arylethynyl silanes, which combines acyl C-H and ortho C-H activation of aromatic aldehydes, offering a new method for constructing the indanone scaffold under mild conditions. By choosing an appropriate silane as the precursor, one can selectively retain or remove the α-silyl group of the indanone products during the reaction. Preliminary mechanistic studies point to a reaction mechanism involving a 1,5-H shift as a key step.
Collapse
Affiliation(s)
- Yujia Mao
- Department of Chemistry, University of Science and Technology of China, Center for Excellence in Molecular Synthesis of CAS, Hefei, Anhui 230026, P. R. China
| | - Pei Fan
- Department of Chemistry, University of Science and Technology of China, Center for Excellence in Molecular Synthesis of CAS, 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
| | - Chuan Wang
- Department of Chemistry, University of Science and Technology of China, Center for Excellence in Molecular Synthesis of CAS, Hefei, Anhui 230026, P. R. China
| |
Collapse
|
9
|
Wang R, Fan P, Wang C. Nickel/Photo-Cocatalyzed Asymmetric Acyl C–H Allylation of Aldehydes and Formamides. ACS Catal 2022. [DOI: 10.1021/acscatal.2c05874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rui Wang
- Department of Chemistry, University of Science and Technology of China, Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Hefei, Anhui 230026, People’s Republic of China
| | - Pei Fan
- Department of Chemistry, University of Science and Technology of China, Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Hefei, Anhui 230026, People’s Republic of China
- School of Chemical and Materials Engineering, Anhui Province Key Laboratory of Low Temperature Co-Fired Materials, Huainan Normal University, Huainan, Anhui 232038, People’s Republic of China
| | - Chuan Wang
- Department of Chemistry, University of Science and Technology of China, Center for Excellence in Molecular Synthesis of Chinese Academy of Sciences, Hefei, Anhui 230026, People’s Republic of China
| |
Collapse
|
10
|
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.
Collapse
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
| |
Collapse
|
11
|
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
| |
Collapse
|
12
|
Galushchinskiy A, González-Gómez R, McCarthy K, Farràs P, Savateev A. Progress in Development of Photocatalytic Processes for Synthesis of Fuels and Organic Compounds under Outdoor Solar Light. ENERGY & FUELS : AN AMERICAN CHEMICAL SOCIETY JOURNAL 2022; 36:4625-4639. [PMID: 35558990 PMCID: PMC9082502 DOI: 10.1021/acs.energyfuels.2c00178] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/18/2022] [Indexed: 05/19/2023]
Abstract
With photovoltaics becoming a mature, commercially feasible technology, society is willing to allocate resources for developing and deploying new technologies based on using solar light. Analysis of projects supported by the European Commission in the past decade indicates exponential growth of funding to photocatalytic (PC) and photoelectrocatalytic (PEC) technologies that aim either at technology readiness levels (TRLs) TRL 1-3 or TRL > 3, with more than 75 Mio€ allocated from the year 2019 onward. This review provides a summary of PC and PEC processes for the synthesis of bulk commodities such as solvents and fuels, as well as chemicals for niche applications. An overview of photoreactors for photocatalysis on a larger scale is provided. The review rounds off with the summary of reactions performed at lab scale under natural outdoor solar light to illustrate conceptual opportunities offered by solar-driven chemistry beyond the reduction of CO2 and water splitting. The authors offer their vision of the impact of this area of research on society and the economy.
Collapse
Affiliation(s)
- Alexey Galushchinskiy
- Department
of Colloid Chemistry, Max Planck Institute
of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Roberto González-Gómez
- School
of Chemistry, Ryan Institute, National University
of Ireland, Galway H91 CF50, Ireland
| | - Kathryn McCarthy
- School
of Chemistry, Ryan Institute, National University
of Ireland, Galway H91 CF50, Ireland
| | - Pau Farràs
- School
of Chemistry, Ryan Institute, National University
of Ireland, Galway H91 CF50, Ireland
| | - Aleksandr Savateev
- Department
of Colloid Chemistry, Max Planck Institute
of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| |
Collapse
|
13
|
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
| |
Collapse
|
14
|
Tan Y, Yin Y, Cao S, Zhao X, Qu G, Jiang Z. Conjugate addition-enantioselective protonation to forge tertiary stereocentres α to azaarenes via cooperative hydrogen atom transfer and chiral hydrogen-bonding catalysis. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)63887-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
15
|
Buglioni L, Raymenants F, Slattery A, Zondag SDA, Noël T. Technological Innovations in Photochemistry for Organic Synthesis: Flow Chemistry, High-Throughput Experimentation, Scale-up, and Photoelectrochemistry. Chem Rev 2022; 122:2752-2906. [PMID: 34375082 PMCID: PMC8796205 DOI: 10.1021/acs.chemrev.1c00332] [Citation(s) in RCA: 208] [Impact Index Per Article: 104.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Indexed: 02/08/2023]
Abstract
Photoinduced chemical transformations have received in recent years a tremendous amount of attention, providing a plethora of opportunities to synthetic organic chemists. However, performing a photochemical transformation can be quite a challenge because of various issues related to the delivery of photons. These challenges have barred the widespread adoption of photochemical steps in the chemical industry. However, in the past decade, several technological innovations have led to more reproducible, selective, and scalable photoinduced reactions. Herein, we provide a comprehensive overview of these exciting technological advances, including flow chemistry, high-throughput experimentation, reactor design and scale-up, and the combination of photo- and electro-chemistry.
Collapse
Affiliation(s)
- Laura Buglioni
- Micro
Flow Chemistry and Synthetic Methodology, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, Het Kranenveld, Bldg 14—Helix, 5600 MB, Eindhoven, The Netherlands
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Fabian Raymenants
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Aidan Slattery
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Stefan D. A. Zondag
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Timothy Noël
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| |
Collapse
|
16
|
Yin Y, Zhao X, Jiang Z. Asymmetric Photocatalytic Synthesis of Enantioenriched Azaarene Derivatives. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202201047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|
17
|
Chen X, Wei W, Li C, Zhou H, Qiao B, Jiang Z. Photoredox-Catalyzed Synthesis of Remote Fluoroalkylated Azaarene Derivatives and the α-Deuterated Analogues via 1, n-Hydrogen-Atom-Transfer-Involving Radical Reactions. Org Lett 2021; 23:8744-8749. [PMID: 34723556 DOI: 10.1021/acs.orglett.1c03204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A modular strategy to access the remote fluoroalkylated azaarene derivatives and the α-deuterated analogues, which are the isosteres of many pharmaceutically important compounds, is reported. Transformations under the sustainable photoredox catalysis platform could efficiently experience cascade radical addition, 1,n-hydrogen atom transfer (HAT), and single-electron reduction to offer the crucial anions α to azaarenes. Through reacting with H2O or the inexpensive D2O, two series of valuable products were obtained in high yields with substantial deuterium incorporation. The work demonstrates that the HAT of the α-sp3 C-H of the electron-withdrawing azaarenes with alkyl radicals is viable.
Collapse
Affiliation(s)
- Xiaowei Chen
- International S&T Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Wenhui Wei
- International S&T Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Chunyang Li
- International S&T Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Hongwei Zhou
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, P. R. China
| | - Baokun Qiao
- International S&T Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Zhiyong Jiang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| |
Collapse
|
18
|
Decatungstate as a direct hydrogen atom transfer photocatalyst for synthesis of trifluromethylthioesters from aldehydes. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.03.070] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
19
|
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.
Collapse
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
| |
Collapse
|
20
|
Hayakawa M, Shirota H, Hirayama S, Yamada R, Aoyama T, Ouchi A. Sunlight-induced C C bond formation reaction: Radical addition of alcohols/ethers/acetals to olefins. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2021.113263] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
21
|
Hu W, Zhan Q, Zhou H, Cao S, Jiang Z. Radical-based functionalization-oriented construction: rapid assembly of azaarene-substituted highly functionalized pyrroles. Chem Sci 2021; 12:6543-6550. [PMID: 34040730 PMCID: PMC8132952 DOI: 10.1039/d1sc01470f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Accepted: 03/26/2021] [Indexed: 12/14/2022] Open
Abstract
Totally different functionalization and construction as two fundamental synthetic protocols have long been applied to furnish azaarene variants. Here, a novel radical-based functionalization-oriented construction strategy by exploiting the electronic properties of azaarenes and the high reactivity of radicals is developed. Under a photoredox catalysis platform, the robust ability of such an artful combination of functionalization with construction is disclosed in the synthesis of valuable 3-azaarene-substituted densely functionalized pyrroles. In addition to the ability to use the readily accessible feedstocks, the high synthetic efficiency and the good functional group tolerance, the substrate scope is broad (81 examples) resulting from the capability to flexibly replace the types of azaarenes and other substituents. Control experiments and density functional theory (DFT) calculations elucidate the plausible mechanism involving the reaction pathways and the important role of NaH2PO4 as an additive in the reaction.
Collapse
Affiliation(s)
- Weigao Hu
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University Kaifeng Henan 475004 P. R. China
| | - Qiangqiang Zhan
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University Kaifeng Henan 475004 P. R. China
- College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing Zhejiang P. R. China 314001
| | - Hongwei Zhou
- College of Biological, Chemical Sciences and Engineering, Jiaxing University Jiaxing Zhejiang P. R. China 314001
| | - Shanshan Cao
- School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Zhiyong Jiang
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University Kaifeng Henan 475004 P. R. China
- School of Chemistry and Chemical Engineering, Henan Normal University Xinxiang Henan 453007 P. R. China
| |
Collapse
|
22
|
Kong M, Tan Y, Zhao X, Qiao B, Tan CH, Cao S, Jiang Z. Catalytic Reductive Cross Coupling and Enantioselective Protonation of Olefins to Construct Remote Stereocenters for Azaarenes. J Am Chem Soc 2021; 143:4024-4031. [DOI: 10.1021/jacs.1c01073] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Manman Kong
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Yaqi Tan
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Xiaowei Zhao
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Baokun Qiao
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
| | - Choon-Hong Tan
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, Singapore 637371
| | - Shanshan Cao
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Zhiyong Jiang
- International Scientific and Technological Cooperation Base of Chiral Chemistry, Henan University, Kaifeng, Henan 475004, P. R. China
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| |
Collapse
|
23
|
Wasfy N, Doan B, Rasheed F, Fishlock D, Orellana A. Palladium-Catalyzed, Mild Dehydrogenation of 4-Alkylpyridines. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05209] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nour Wasfy
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Brian Doan
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Faizan Rasheed
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| | - Dan Fishlock
- Process Chemistry and Catalysis, Synthetic Molecule Technical Development, F. Hoffmann-La Roche Ltd. Basel 4070, Switzerland
| | - Arturo Orellana
- Department of Chemistry, York University, 4700 Keele Street, Toronto, Ontario M3J 1P3, Canada
| |
Collapse
|
24
|
Zhang G. 4-vinylpyridine derivatives: Protonation, methylation and silver(I) coordination chemistry. JOURNAL OF CHEMICAL RESEARCH 2021. [DOI: 10.1177/1747519821989659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
( E)-4-[2-(Pyridin-4-yl)vinyl]benzaldehyde, containing both a 4-vinylpyridine and an aldehyde functionality, is utilized to develop new, highly conjugated chalcone compounds and a bis-Schiff base azine compound. The chalcone-containing compounds are further explored for their protonation, methylation and silver(I) coordination chemistry using the pyridine moiety. In parallel, a cyano-containing analogue, ( E)-4-[2-(pyridin-4-yl)vinyl]benzonitrile is also synthesized and studied for its silver(I) coordination chemistry. These new compounds are fully characterized by mass spectrometry, elemental analysis and spectroscopic techniques. The methylated product of ( E)-1-(9-anthryl)-3-{4-[2-(pyridin-4-yl)vinyl]phenyl}prop-2-en-1-one and a silver complex of ( E)-4-[2-(pyridin-4-yl)vinyl]benzonitrile are structurally determined by X-ray crystallography.
Collapse
Affiliation(s)
- Guoqi Zhang
- Department of Sciences, John Jay College and the PhD Program in Chemistry at the Graduate Center, The City University of New York, New York, USA
| |
Collapse
|
25
|
Prieto A, Taillefer M. Visible-Light Decatungstate/Disulfide Dual Catalysis for the Hydro-Functionalization of Styrenes. Org Lett 2021; 23:1484-1488. [DOI: 10.1021/acs.orglett.1c00189] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexis Prieto
- ICGM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France
| | - Marc Taillefer
- ICGM, Univ Montpellier, CNRS, ENSCM, 34000 Montpellier, France
| |
Collapse
|
26
|
Yin Y, Li Y, Gonçalves TP, Zhan Q, Wang G, Zhao X, Qiao B, Huang KW, Jiang Z. All-Carbon Quaternary Stereocenters α to Azaarenes via Radical-Based Asymmetric Olefin Difunctionalization. J Am Chem Soc 2020; 142:19451-19456. [DOI: 10.1021/jacs.0c08329] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yanli Yin
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
- College of Bioengineering, Henan University of Technology, Zhengzhou, Henan 450001, P. R. of China
- Henan University, Kaifeng, Henan 475004, P. R. China
| | - Yunqiang Li
- Henan University, Kaifeng, Henan 475004, P. R. China
| | - Théo P. Gonçalves
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | | | - Guanghui Wang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Xiaowei Zhao
- Henan University, Kaifeng, Henan 475004, P. R. China
| | - Baokun Qiao
- Henan University, Kaifeng, Henan 475004, P. R. China
| | - Kuo-Wei Huang
- KAUST Catalysis Center and Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Zhiyong Jiang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
- Henan University, Kaifeng, Henan 475004, P. R. China
| |
Collapse
|
27
|
Hayakawa M, Shimizu R, Omori H, Shirota H, Uchida K, Mashimo H, Xu H, Yamada R, Niino S, Wakame Y, Liu C, Aoyama T, Ouchi A. Photochemical addition of cyclic ethers/acetals to olefins using BuOO Bu: Synthesis of masked ketones/aldehydes and diols. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
28
|
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.
Collapse
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
| |
Collapse
|
29
|
Yin Y, Zhao X, Jiang Z. Advances in the Synthesis of Imine‐Containing Azaarene Derivatives via Photoredox Catalysis. ChemCatChem 2020. [DOI: 10.1002/cctc.202000741] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yanli Yin
- College of Bioengineering Henan University of Technology Zhengzhou Henan 450001 P. R. China
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
| | - Xiaowei Zhao
- College of Pharmacy Henan University Kaifeng Henan 475004 P. R. China
| | - Zhiyong Jiang
- School of Chemistry and Chemical Engineering Henan Normal University Xinxiang Henan 453007 P. R. China
| |
Collapse
|
30
|
Chen J, Fu Y, Yu Y, Wang JR, Guo YW, Li H, Wang W. Enantioselective [4 + 2] Cycloaddition Reaction of Vinylquinolines with Dienals Enabled by Synergistic Organocatalysis. Org Lett 2020; 22:6061-6066. [PMID: 32663018 DOI: 10.1021/acs.orglett.0c02137] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
An unprecedented organocatalytic enantioselective [4 + 2] cycloaddition reaction of vinyl quinolines with dienals is achieved with the synergistic activation of CH3SO3H and a chiral aminocatalyst. The power of the process is demonstrated by its high efficiency of the production of new synthetically and biologically valued chiral quinoline architectures in high yields and with excellent enantioselectivities.
Collapse
Affiliation(s)
- Jing Chen
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yiwei Fu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yang Yu
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jian-Rong Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Hao Li
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei Wang
- State Key Laboratory of Bioengineering Reactor, Shanghai Key Laboratory of New Drug Design, and School of Pharmacy, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China.,Departments of Pharmacology & Toxicology and Chemistry & Biochemistry University of Arizona, Tucson, Arizona 85721, United States
| |
Collapse
|
31
|
Liu X, Lin EE, Chen G, Li JL, Liu P, Wang H. Radical Hydroboration and Hydrosilylation of gem-Difluoroalkenes: Synthesis of α-Difluorinated Alkylborons and Alkylsilanes. Org Lett 2019; 21:8454-8458. [PMID: 31600080 DOI: 10.1021/acs.orglett.9b03218] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A first example of radical hydroboration and hydrosilylation of gem-difluoroalkenes using ABIN as the radical initiator is described. This protocol features good functional group tolerance, operational simplicity, high atom economy, and easy scale-up, enabling efficient assembly of a wide range of α-difluorinated alkylborons and alkylsilanes in moderate to excellent yields. The synthetic utility of these products is demonstrated by further transformation of the C-B bond and C-Si bond into valuable CF2-containing molecules.
Collapse
Affiliation(s)
- Xiaozu Liu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy , Zunyi Medical University , Zunyi 563006 , P.R. China
| | - E Emily Lin
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , P.R. China
| | - Guojun Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy , Zunyi Medical University , Zunyi 563006 , P.R. China
| | - Ji-Lin Li
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , P.R. China
| | - Peijun Liu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy , Zunyi Medical University , Zunyi 563006 , P.R. China
| | - Honggen Wang
- School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , P.R. China
| |
Collapse
|
32
|
Jing D, Lu C, Chen Z, Jin S, Xie L, Meng Z, Su Z, Zheng K. Light‐Driven Intramolecular C−N Cross‐Coupling via a Long‐Lived Photoactive Photoisomer Complex. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906112] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Dong Jing
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Cong Lu
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Zhuo Chen
- Shanghai Key Laboratory of New Drug Design School of Pharmacy East China University of Science and Technology Shanghai 200237 P. R. China
| | - Songyang Jin
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Lijuan Xie
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Ziyi Meng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology Ministry of Education College of Chemistry Sichuan University Chengdu 610064 P. R. China
| |
Collapse
|
33
|
Jing D, Lu C, Chen Z, Jin S, Xie L, Meng Z, Su Z, Zheng K. Light-Driven Intramolecular C-N Cross-Coupling via a Long-Lived Photoactive Photoisomer Complex. Angew Chem Int Ed Engl 2019; 58:14666-14672. [PMID: 31373432 DOI: 10.1002/anie.201906112] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/15/2019] [Indexed: 12/24/2022]
Abstract
Reported herein is a visible-light-driven intramolecular C-N cross-coupling reaction under mild reaction conditions (metal- and photocatalyst-free, at room temperature) via a long-lived photoactive photoisomer complex. This strategy was used to rapidly prepare the N-substituted polycyclic quinazolinone derivatives with a broad substrate scope (>50 examples) and further exploited to synthesize the natural products tryptanthrin, rutaecarpine, and their analogues. The success of gram-scale synthesis and solar-driven transformation, as well as promising tumor-suppressing biological activity, proves the potential of this strategy for practical applications. Mechanistic investigations, including control experiments, DFT calculations, UV-vis spectroscopy, EPR, and X-ray single-crystal structure of the key intermediate, provides insight into the mechanism.
Collapse
Affiliation(s)
- Dong Jing
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Cong Lu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhuo Chen
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, P. R. China
| | - Songyang Jin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Lijuan Xie
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Ziyi Meng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| | - Ke Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, 610064, P. R. China
| |
Collapse
|
34
|
Yuan Z, Yang H, Malik N, Čolović M, Weber DS, Wilson D, Bénard F, Martin RE, Warren JJ, Schaffer P, Britton R. Electrostatic Effects Accelerate Decatungstate-Catalyzed C–H Fluorination Using [18F]- and [19F]NFSI in Small Molecules and Peptide Mimics. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02220] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Zheliang Yuan
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S2, Canada
- Life Sciences Division, TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - Hua Yang
- Life Sciences Division, TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - Noeen Malik
- Life Sciences Division, TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - Milena Čolović
- Department of Molecular Oncology, BC Cancer Agency, Vancouver, British Columbia V5Z 1L3, Canada
| | - David S. Weber
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S2, Canada
| | - Darryl Wilson
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S2, Canada
| | - François Bénard
- Department of Molecular Oncology, BC Cancer Agency, Vancouver, British Columbia V5Z 1L3, Canada
| | - Rainer E. Martin
- Medicinal Chemistry, Roche Pharma Research and Early Development (pRED), Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, CH-4070 Basel, Switzerland
| | - Jeffrey J. Warren
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S2, Canada
| | - Paul Schaffer
- Life Sciences Division, TRIUMF, Vancouver, British Columbia V6T 2A3, Canada
| | - Robert Britton
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S2, Canada
| |
Collapse
|
35
|
Cao K, Tan SM, Lee R, Yang S, Jia H, Zhao X, Qiao B, Jiang Z. Catalytic Enantioselective Addition of Prochiral Radicals to Vinylpyridines. J Am Chem Soc 2019; 141:5437-5443. [DOI: 10.1021/jacs.9b00286] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kangning Cao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Siu Min Tan
- Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Richmond Lee
- Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Songwei Yang
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Hongshao Jia
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Xiaowei Zhao
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Baokun Qiao
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan 475004, China
| | - Zhiyong Jiang
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
- Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng, Henan 475004, China
| |
Collapse
|
36
|
Das J, Vellakkaran M, Banerjee D. Nickel-Catalyzed Alkylation of Ketone Enolates: Synthesis of Monoselective Linear Ketones. J Org Chem 2018; 84:769-779. [PMID: 30548070 DOI: 10.1021/acs.joc.8b02609] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein we have developed a Ni-catalyzed protocol for the synthesis of linear ketones. Aryl, alkyl, and heteroaryl ketones as well as alcohols yielded the monoselective ketones in up to 90% yield. The catalytic protocol was successfully applied in to a gram-scale synthesis. For a practical utility, applications of a steroid derivative, oleyl alcohol, and naproxen alcohol were employed. Preliminary catalytic investigations involving the isolation of a Ni intermediate and defined Ni-H species as well as a series of deuterium-labeling experiments were performed.
Collapse
Affiliation(s)
- Jagadish Das
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis , Indian Institute of Technology Roorkee , Roorkee 247667 , India
| | - Mari Vellakkaran
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis , Indian Institute of Technology Roorkee , Roorkee 247667 , India
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis , Indian Institute of Technology Roorkee , Roorkee 247667 , India
| |
Collapse
|
37
|
Zhu J, Cui WC, Wang S, Yao ZJ. Visible Light-Driven Radical trans-Hydrosilylation of Electron-Neutral and -Rich Alkenes with Tertiary and Secondary Hydrosilanes. J Org Chem 2018; 83:14600-14609. [DOI: 10.1021/acs.joc.8b02409] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jing Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Wei-Chen Cui
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Shaozhong Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| | - Zhu-Jun Yao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, Jiangsu 210023, China
| |
Collapse
|
38
|
Fan X, Rong J, Wu H, Zhou Q, Deng H, Tan JD, Xue C, Wu L, Tao H, Wu J. Eosin Y as a Direct Hydrogen‐Atom Transfer Photocatalyst for the Functionalization of C−H Bonds. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201803220] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xuan‐Zi Fan
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Jia‐Wei Rong
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Hao‐Lin Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 China
| | - Quan Zhou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Hong‐Ping Deng
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Jin Da Tan
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Cheng‐Wen Xue
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 China
| | - Hai‐Rong Tao
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Jie Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| |
Collapse
|
39
|
Fan X, Rong J, Wu H, Zhou Q, Deng H, Tan JD, Xue C, Wu L, Tao H, Wu J. Eosin Y as a Direct Hydrogen‐Atom Transfer Photocatalyst for the Functionalization of C−H Bonds. Angew Chem Int Ed Engl 2018; 57:8514-8518. [DOI: 10.1002/anie.201803220] [Citation(s) in RCA: 216] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/13/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Xuan‐Zi Fan
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Jia‐Wei Rong
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Hao‐Lin Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 China
| | - Quan Zhou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Hong‐Ping Deng
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Jin Da Tan
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Cheng‐Wen Xue
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry The Chinese Academy of Sciences Beijing 100190 China
| | - Hai‐Rong Tao
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Jie Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Republic of Singapore
| |
Collapse
|
40
|
Yin Y, Dai Y, Jia H, Li J, Bu L, Qiao B, Zhao X, Jiang Z. Conjugate Addition-Enantioselective Protonation of N-Aryl Glycines to α-Branched 2-Vinylazaarenes via Cooperative Photoredox and Asymmetric Catalysis. J Am Chem Soc 2018; 140:6083-6087. [PMID: 29634250 DOI: 10.1021/jacs.8b01575] [Citation(s) in RCA: 175] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An enantioselective protonation strategy has been successfully applied to the synthesis of chiral α-tertiary azaarenes. With a dual catalytic system involving a chiral phosphoric acid and a dicyanopyrazine-derived chromophore (DPZ) photosensitizer that is mediated by visible light, a variety of α-branched 2-vinylpyridines and 2-vinylquinolines with N-aryl glycines underwent a redox-neutral, radical conjugate addition-protonation process and provided valuable chiral 3-(2-pyridine/quinoline)-3-substituted amines in high yields with good to excellent enantioselectivities (up to >99% ee). An application of this methodology to a two-step synthesis of the enantiomerically pure medicinal compound pheniramine (Avil) is also presented.
Collapse
Affiliation(s)
- Yanli Yin
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng , Henan , P. R. China 475004.,College of Bioengineering , Henan University of Technology , Zhengzhou , Henan , P. R. of China 450001
| | - Yating Dai
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng , Henan , P. R. China 475004
| | - Hongshao Jia
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng , Henan , P. R. China 475004
| | - Jiangtao Li
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng , Henan , P. R. China 475004
| | - Liwei Bu
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng , Henan , P. R. China 475004
| | - Baokun Qiao
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng , Henan , P. R. China 475004
| | - Xiaowei Zhao
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng , Henan , P. R. China 475004
| | - Zhiyong Jiang
- Key Laboratory of Natural Medicine and Immuno-Engineering , Henan University , Kaifeng , Henan , P. R. China 475004
| |
Collapse
|
41
|
Torti E, Protti S, Fagnoni M. N-Aryltrifluoromethanesulfonimides as new trifluoromethylating agents for the (photo)catalyst-free functionalization of (hetero)aromatics. Chem Commun (Camb) 2018; 54:4144-4147. [DOI: 10.1039/c8cc00938d] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An N-arylsulfonimide was successfully employed as a new reagent for the photoinduced trifluoromethylation of (hetero)aromatics. The reactions took place by UV irradiation, sunlight exposure and under continuous-flow conditions.
Collapse
Affiliation(s)
- Edoardo Torti
- PhotoGreen Lab
- Department of Chemistry University of Pavia
- 27100 Pavia
- Italy
| | - Stefano Protti
- PhotoGreen Lab
- Department of Chemistry University of Pavia
- 27100 Pavia
- Italy
| | - Maurizio Fagnoni
- PhotoGreen Lab
- Department of Chemistry University of Pavia
- 27100 Pavia
- Italy
| |
Collapse
|
42
|
Capaldo L, Riccardi R, Ravelli D, Fagnoni M. Acyl Radicals from Acylsilanes: Photoredox-Catalyzed Synthesis of Unsymmetrical Ketones. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03719] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Luca Capaldo
- PhotoGreen Lab, Department
of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Riccardo Riccardi
- PhotoGreen Lab, Department
of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - 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
| |
Collapse
|
43
|
Lima F, Sharma UK, Grunenberg L, Saha D, Johannsen S, Sedelmeier J, Van der Eycken EV, Ley SV. A Lewis Base Catalysis Approach for the Photoredox Activation of Boronic Acids and Esters. Angew Chem Int Ed Engl 2017; 56:15136-15140. [PMID: 29024307 PMCID: PMC5708277 DOI: 10.1002/anie.201709690] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Indexed: 11/11/2022]
Abstract
We report herein the use of a dual catalytic system comprising a Lewis base catalyst such as quinuclidin-3-ol or 4-dimethylaminopyridine and a photoredox catalyst to generate carbon radicals from either boronic acids or esters. This system enabled a wide range of alkyl boronic esters and aryl or alkyl boronic acids to react with electron-deficient olefins via radical addition to efficiently form C-C coupled products in a redox-neutral fashion. The Lewis base catalyst was shown to form a redox-active complex with either the boronic esters or the trimeric form of the boronic acids (boroxines) in solution.
Collapse
Affiliation(s)
- Fabio Lima
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| | - Upendra K. Sharma
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC)Department of ChemistryUniversity of Leuven (KU Leuven)Celestijnenlaan 200F3001LeuvenBelgium
| | - Lars Grunenberg
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| | - Debasmita Saha
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC)Department of ChemistryUniversity of Leuven (KU Leuven)Celestijnenlaan 200F3001LeuvenBelgium
| | - Sandra Johannsen
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| | | | - Erik V. Van der Eycken
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC)Department of ChemistryUniversity of Leuven (KU Leuven)Celestijnenlaan 200F3001LeuvenBelgium
- Peoples Friendship University of Russia (RUDN University)Miklukho-Maklaya street 6117198MoscowRussia
| | - Steven V. Ley
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| |
Collapse
|
44
|
Lima F, Sharma UK, Grunenberg L, Saha D, Johannsen S, Sedelmeier J, Van der Eycken EV, Ley SV. A Lewis Base Catalysis Approach for the Photoredox Activation of Boronic Acids and Esters. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709690] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Fabio Lima
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Upendra K. Sharma
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F 3001 Leuven Belgium
| | - Lars Grunenberg
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | - Debasmita Saha
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F 3001 Leuven Belgium
| | - Sandra Johannsen
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| | | | - Erik V. Van der Eycken
- Laboratory for Organic and Microwave-Assisted Chemistry (LOMAC); Department of Chemistry; University of Leuven (KU Leuven); Celestijnenlaan 200F 3001 Leuven Belgium
- Peoples Friendship University of Russia (RUDN University); Miklukho-Maklaya street 6 117198 Moscow Russia
| | - Steven V. Ley
- Department of Chemistry; University of Cambridge; Lensfield Road Cambridge CB2 1EW UK
| |
Collapse
|