1
|
Lee K, Yoon S, Noh HC, Kim D, Lee PH. Rhodium(III)-Catalyzed B(4)-Azo Coupling of o-Carboranes with Aryl Diazonium Tetrafluoroborates. Org Lett 2024. [PMID: 39320152 DOI: 10.1021/acs.orglett.4c03250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2024]
Abstract
Rh(III)-catalyzed B(4)-azo coupling reactions of o-carborane acids with aryl diazonium tetrafluoroborates have been developed, leading to the regioselective formation of B(4)-azo-coupled o-carboranes. Moreover, B(4)-azo-coupled o-carboranes can be further functionalized by introducing a second azo group, producing B(4)-C(1)-di(arylazo) o-carborane. The B(4)-azo group as an efficient directing group enables catalytic C-H amidation reactions, providing a new synthetic route for complex o-carborane derivatives.
Collapse
Affiliation(s)
- Kyungsup Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sugyeong Yoon
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Hee Chan Noh
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Dongwook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science, Daejeon 34141, Republic of Korea
| | - Phil Ho Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| |
Collapse
|
2
|
Yuan Y, Han Y, Zhang ZK, Sun S, Wu K, Yang J, Zhang J. Enantioselective Arylation of Sulfenamides to Access Sulfilimines Enabled by Palladium Catalysis. Angew Chem Int Ed Engl 2024; 63:e202409541. [PMID: 38935325 DOI: 10.1002/anie.202409541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 06/28/2024]
Abstract
Sulfur-containing functional groups have garnered considerable attention due to their common occurrence in ligands, pharmaceuticals, and insecticides. Nevertheless, enantioselective synthesis of sulfilimines, particularly diaryl sulfilimines remains a challenging and persistent goal. Herein we report a highly enantio- and chemoselective cross-coupling of sulfenamides with aryl diazonium salt to construct diverse S(IV) stereocenters by Pd catalysis. Bisphosphine ligands bearing sulfinamide groups play a crucial role in achieving high reactivity and selectivity. This approach provides a general, modular and divergent framework for quickly synthesizing chiral sulfilimines and sulfoximines that are otherwise challenging to access. In addition, the origins of the high chemoselectivity and enantioselectivity were extensively investigated using density functional theory calculations.
Collapse
Affiliation(s)
- Yin Yuan
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438, China
| | - Yidan Han
- College of Chemistry and Bioengineering, Guilin University of Technology, Guilin, 541006, China
| | - Zhi-Kun Zhang
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438, China
| | - Shijin Sun
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438, China
| | - Ke Wu
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438, China
| | - Junfeng Yang
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438, China
- Fudan Zhangjiang Institute, Shanghai, 201203, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
| | - Junliang Zhang
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai, 200438, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan, 453007, China
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou, 225002, China
| |
Collapse
|
3
|
Mandal T, Chaturvedi A, Azim A, Maji R, De Sarkar S. Earth-Abundant Recyclable Magnetic Iron Oxide Nanoparticles for Green-light Mediated C-H Arylation in Heterogeneous Phase. Chemistry 2024; 30:e202401617. [PMID: 38788130 DOI: 10.1002/chem.202401617] [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: 04/24/2024] [Revised: 05/22/2024] [Accepted: 05/24/2024] [Indexed: 05/26/2024]
Abstract
A magnetically isolable iron oxide nanoparticles is introduced as an efficient heterogeneous photocatalyst for non-directed C-H arylation employing aryl diazonium salts as the aryl precursors. This first-row transition metal-based photocatalyst revealed versatile activities and is applicable to a wide range of substrates, demonstrating brilliant efficacy and superior recyclability. Detailed catalytic characterization describes the physical properties and redox behavior of the Fe-catalyst. Adequate control experiments helped to establish the radical-based mechanism for the C-H arylation.
Collapse
Affiliation(s)
- Tanumoy Mandal
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India
| | - Ashwin Chaturvedi
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India
| | - Aznur Azim
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India
| | - Rohan Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India
| | - Suman De Sarkar
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India
| |
Collapse
|
4
|
Mameli A, Kovtun A, Jones D, Benekou V, Palermo V, Bandini M, Melucci M. Covalent functionalization by using blue light activated radicals: on the reaction mechanisms of arylazo sulfone binding on graphene. NANOSCALE ADVANCES 2024:d4na00359d. [PMID: 39170767 PMCID: PMC11333948 DOI: 10.1039/d4na00359d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Accepted: 07/31/2024] [Indexed: 08/23/2024]
Abstract
Covalent functionalization of graphene presents a pivotal strategy to enhance its surface properties and overcome inherent chemical inertness. While diazonium salts have been extensively utilized for this purpose, their limitations necessitate exploration of alternative approaches. Arylazo sulfones, such as diazonium salt derivatives serving as chromophores, offer a promising solution, enabling photochemical reactions under visible light. Here, we propose a novel method for rapid covalent photofunctionalization of chemical vapor deposition (CVD) graphene on copper substrates using arylazo sulfones. The generation of aryl radicals - chlorobenzene in this case - was achieved through blue light LED irradiation of 4-chlorophenylazo methyl sulfone solution in acetonitrile. Efficient surface covalent modification of graphene was verified by observing (i) the photogeneration of radicals with a decrease in the π-π* band absorbance and an increase in the n-π* of arylazosulfone solution by UV-Vis spectroscopy; (ii) an increase in C sp3 defects on graphene from the Raman D band, the Auger C KLL signal and graphene C 1s X-ray photoelectron spectroscopy (XPS); and (iii) the presence of the chlorobenzene XPS Cl 2p signal. The aryl radical generation was enhanced by the copper substrate during irradiation, with a possible double path reaction mechanism. This approach highlights the versatility of arylazo sulfones in covalently patterning graphene surfaces, thus unlocking opportunities by overcoming the current approach consisting of the deposition of resist materials with successive cycles of lithography and electrochemistry.
Collapse
Affiliation(s)
- Alessandro Mameli
- Dipartimento di Chimica "Giacomo Ciamician" Alma Mater Studiorum - Università di Bologna Via P. Gobetti, 85 40129 Bologna Italy
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101 40129 Bologna Italy
| | - Alessandro Kovtun
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101 40129 Bologna Italy
| | - Derek Jones
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101 40129 Bologna Italy
| | - Vasiliki Benekou
- Dipartimento di Chimica "Giacomo Ciamician" Alma Mater Studiorum - Università di Bologna Via P. Gobetti, 85 40129 Bologna Italy
- Dipartimento di Scienze Fisiche, Informatiche e Matematiche (FIM), Università di Modena e Reggio Emilia (UNIMORE) Via G. Campi, 213/A 41125 Modena Italy
| | - Vincenzo Palermo
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101 40129 Bologna Italy
| | - Marco Bandini
- Dipartimento di Chimica "Giacomo Ciamician" Alma Mater Studiorum - Università di Bologna Via P. Gobetti, 85 40129 Bologna Italy
| | - Manuela Melucci
- Istituto per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR) Via P. Gobetti, 101 40129 Bologna Italy
| |
Collapse
|
5
|
El-Maghrabey M, Kishikawa N, Kuroda N. Unique biomedical application of fluorescence derivatization based on palladium-catalyzed coupling reactions for HPLC analysis of pharmaceuticals and biomolecules. Biomed Chromatogr 2024; 38:e5857. [PMID: 38509750 DOI: 10.1002/bmc.5857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/31/2024] [Accepted: 02/13/2024] [Indexed: 03/22/2024]
Abstract
Palladium-catalyzed coupling reactions are versatile and powerful tools for the construction of carbon-carbon bonds in organic synthesis. Although these reactions have favorable features that proceed selectively in mild reaction conditions using aqueous organic solvents, no attention has been given to their application in the field of biomedical analysis. Therefore, we focused on these reactions and evaluated the scope and limitations of their analytical performance. In this review, we describe the pros and cons and future trends of fluorescence derivatization of pharmaceuticals and biomolecules based on palladium-catalyzed coupling reactions such as Suzuki-Miyaura coupling, Mizoroki-Heck coupling, and Sonogashira coupling reactions for HPLC analysis.
Collapse
Affiliation(s)
- Mahmoud El-Maghrabey
- Graduate School of Biomedical Sciences, Course of Pharmaceutical Sciences, Nagasaki University, Nagasaki, Japan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Naoya Kishikawa
- Graduate School of Biomedical Sciences, Course of Pharmaceutical Sciences, Nagasaki University, Nagasaki, Japan
| | - Naotaka Kuroda
- Graduate School of Biomedical Sciences, Course of Pharmaceutical Sciences, Nagasaki University, Nagasaki, Japan
| |
Collapse
|
6
|
Venkatesh R, Narayan AC, Kandasamy J. Synthesis of deoxybenzoins from β-alkoxy styrenes and arylboronic acids via palladium-catalyzed regioselective Heck-arylation reactions. Org Biomol Chem 2024; 22:5193-5197. [PMID: 38864361 DOI: 10.1039/d4ob00616j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Palladium-catalyzed synthesis of deoxybenzoin derivatives from styryl ethers and arylboronic acids is reported. The reaction proceeds under mild conditions in the presence of TEMPO and provides the desired products in good to excellent yields. Simple operation, broad substrate scope, and functional group tolerance are the salient features of the developed methodology.
Collapse
Affiliation(s)
- Rapelly Venkatesh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005, India.
| | - Aswathi C Narayan
- Department of Chemistry, Pondicherry University, Pondicherry-605014, India.
| | - Jeyakumar Kandasamy
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005, India.
- Department of Chemistry, Pondicherry University, Pondicherry-605014, India.
| |
Collapse
|
7
|
Kubo M, Yamaguchi J. Divergent Transformations of Aromatic Esters: Decarbonylative Coupling, Ester Dance, Aryl Exchange, and Deoxygenative Coupling. Acc Chem Res 2024; 57:1747-1760. [PMID: 38819671 PMCID: PMC11191398 DOI: 10.1021/acs.accounts.4c00233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/18/2024] [Accepted: 05/21/2024] [Indexed: 06/01/2024]
Abstract
ConspectusAromatic esters are cost-effective, versatile, and commonly used scaffolds that are readily synthesized or encountered as synthetic intermediates. While most conventional reactions involving these esters are nucleophilic acyl substitutions or 1,2-nucleophilic additions─where a nucleophile attacks the carbonyl group, decarbonylative transformations offer an alternative pathway by using the carbonyl group as a leaving group. This transition-metal-catalyzed process typically begins with oxidative addition of the C(acyl)-O bond to the metal. Subsequently, the reaction involves the migration of CO to the metal center, the reaction with a nucleophile, and reductive elimination to yield the final product. Pioneering work by Yamamoto on nickel complexes and the development of decarbonylative reactions (such as Mizoroki-Heck-type olefination) using aromatic carboxylic anhydrides catalyzed by palladium were conducted by de Vries and Stephan. Furthermore, reports have surfaced of decarbonylative hydrogenation of pyridyl methyl esters by Murai using ruthenium catalysts as well as Mizoroki-Heck-type reactions of nitro phenyl esters by Gooßen under palladium catalysis. Our group has been at the forefront of developing decarbonylative C-H arylations of phenyl esters with 1,3-azoles and aryl boronic acids using nickel catalysts. The key to this reaction is the use of phenyl esters, which are easy to synthesize, stabilize, and handle, allowing oxidative addition of the C(acyl)-O bond; nickel, which facilitates oxidative addition of the C(acyl)-O bond; and suitable bidentate phosphine ligands that can stabilize the intermediate. By modification of the nucleophiles, esters have been effectively utilized as electrophiles in cross-coupling reactions, encouraging the development of these nucleophiles among researchers. This Account summarizes our advancements in nucleophile development for decarbonylative coupling reactions, particularly highlighting the utilization of aromatic esters in diverse reactions such as alkenylation, intramolecular etherification, α-arylation of ketones, C-H arylation, methylation, and intramolecular C-H arylation for dibenzofuran synthesis, along with cyanation and reductive coupling. We also delve into reaction types that are distinct from typical decarbonylative reactions, including ester dance reactions, aromatic ring exchanges, and deoxygenative transformations, by focusing on the oxidative addition of the C(acyl)-O bond of the aromatic esters to the metal complex. For example, the ester dance reaction is hypothesized to undergo 1,2-translocation starting with oxidative addition to a palladium complex, leading to a sequence of ortho-deprotonation/decarbonylation, followed by protonation, carbonylation, and reductive elimination. The aromatic exchange reaction likely involves oxidative addition of complexes of different aryl electrophiles with a nickel complex. In deoxygenative coupling, an oxidative addition complex with palladium engages with a nucleophile, forming an acyl intermediate that undergoes reductive elimination in the presence of an appropriate reducing agent. These methodologies are poised to captivate the interest of synthetic chemists by offering unconventional and emerging approaches for transforming aromatic esters. Moreover, we demonstrated the potential to transform readily available basic chemicals into new compounds through organic synthesis.
Collapse
Affiliation(s)
- Masayuki Kubo
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Junichiro Yamaguchi
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| |
Collapse
|
8
|
Zhao G, Li W, Zhang J. Recent Advances in Palladium-Catalyzed Asymmetric Heck/Tsuji-Trost Reactions of 1,n-Dienes. Chemistry 2024; 30:e202400076. [PMID: 38349344 DOI: 10.1002/chem.202400076] [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: 01/08/2024] [Indexed: 03/01/2024]
Abstract
Transition-metal catalyzed tandem asymmetric reactions were powerful tools to access various chiral compounds. Many strategies have been developed for the coupling of 1,n-dienes with aryl halides via a tandem Heck/Tsuji-Trost process. However, the control of regio- and stereo-chemistry remains a challenging task. This minireview details the recent advances in the field of asymmetric Heck/Tsuji-Trost reactions catalyzed by palladium complex, which have opened new opportunities and expanded our understanding in this area of research in recent years.
Collapse
Affiliation(s)
- Guofeng Zhao
- School of Chemistry and Chemical Engineering, Henan University of Science and Technology, Luoyang, 471023, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Wenbo Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, State Key Laboratory of Petroleum Molecular & Process Engineering, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, P. R. China
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, P. R. China
| |
Collapse
|
9
|
Chen S, Ji YS, Choi Y, Youn SW. One-Pot Three-Component Reaction for the Synthesis of 3,4-Dihydroquinazolines and Quinazolin-4(3 H)-ones. J Org Chem 2024; 89:6428-6443. [PMID: 38608000 DOI: 10.1021/acs.joc.4c00458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2024]
Abstract
A highly efficient and straightforward one-pot synthesis of diversely substituted 3,4-dihydroquinazolines and quinazolin-4(3H)-ones has been achieved through a domino three-component assembly reaction of arenediazonium salts, nitriles, and bifunctional aniline derivatives. This new protocol involves three C-N bond formations through the initial formation of N-arylnitrilium intermediates from arenediazonium salts and nitriles, followed by the sequential nucleophilic addition and cyclization reactions with bifunctional anilines, leading to such N-heterocyclic compounds of biological and pharmacological importance. This method offers a simple, expedient, and robust approach with the use of amenable and easily accessible reactants/reagents under metal-free mild conditions, good functional group tolerance, and high efficiency. The synthetic applications were also demonstrated by derivatization of the products obtained from these processes and syntheses of a diverse range of valuable polycyclic N-heterocycles.
Collapse
Affiliation(s)
- Shiwei Chen
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Yeong Shin Ji
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Yuri Choi
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| |
Collapse
|
10
|
Behmagham F, Mustafa MA, Saraswat SK, Khalaf KA, Kaur M, Ghildiyal P, Vessally E. Recent investigations into deborylative (thio-/seleno-) cyanation of aryl boronic acids. RSC Adv 2024; 14:9184-9199. [PMID: 38505389 PMCID: PMC10949121 DOI: 10.1039/d4ra00487f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024] Open
Abstract
In this review, we intend to summarize the most important discoveries in the deborylative (thio-/seleno-) cyanation of aryl boronic acids from 2006 to the end of 2023. Thus, the review is divided into three parts. The first section focuses exclusively on cyanation of aryl boronic acids into aryl nitriles. The second section covers the available literature on the synthesis of aryl thiocyanates through thiocyanation of respective aryl boronic acids. The third will discuss selenocyanation of aryl boronic acids into aryl selenocyanates.
Collapse
Affiliation(s)
- Farnaz Behmagham
- Department of Chemistry, Islamic Azad University Miandoab Branch Miandoab Iran
| | | | | | | | - Mandeep Kaur
- Department of Chemistry, School of Sciences, Jain (Deemed-to-be) University Bengaluru Karnataka 560069 India
- Department of Sciences, Vivekananda Global University Jaipur Rajasthan 303012 India
| | - Pallavi Ghildiyal
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University Dehradun India
| | - Esmail Vessally
- Department of Chemistry, Payame Noor University P. O. Box 19395-3697 Tehran Iran
| |
Collapse
|
11
|
Sephton T, Charitou A, Trujillo C, Large JM, Butterworth S, Greaney MF. Aryne-Enabled C-N Arylation of Anilines. Angew Chem Int Ed Engl 2023; 62:e202310583. [PMID: 37850515 PMCID: PMC10952162 DOI: 10.1002/anie.202310583] [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: 07/25/2023] [Revised: 10/13/2023] [Accepted: 10/17/2023] [Indexed: 10/19/2023]
Abstract
Anilines are potentially high-value arylating agents, but are limited by the low reactivity of the strong C-N bond. We show that the reactive intermediate benzyne can be used to both activate anilines, and set-up an aryl transfer reaction in a single step. The reaction does not require any transition metal catalysts or stoichiometric organometallics, and establishes a metal-free route to valuable biaryl products by functionalizing the aniline C-N bond.
Collapse
Affiliation(s)
- Thomas Sephton
- School of ChemistryUniversity of ManchesterManchesterM13 9PLUK
| | | | | | - Jonathan M. Large
- LifeArc, Accelerator BuildingOpen Innovation CampusStevenageSG1 2FXUK
| | - Sam Butterworth
- Division of Pharmacy and Optometry, School of Health Sciences, Manchester Academic Health Sciences CentreUniversity of ManchesterManchesterM13 9PLUK
| | | |
Collapse
|
12
|
Hernández-Ruiz R, Gómez-Gil S, Pedrosa MR, Suárez-Pantiga S, Sanz R. Direct synthesis of haloaromatics from nitroarenes via a sequential one-pot Mo-catalyzed reduction/Sandmeyer reaction. Org Biomol Chem 2023; 21:7791-7798. [PMID: 37706648 DOI: 10.1039/d3ob01187a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Herein, we report the direct synthesis of a wide variety of functionalized aromatic bromides, chlorides, iodides, and fluorides from nitroarenes in a sequential one-pot operation. This protocol is based on an air- and moisture-tolerant dioxomolybdenum-catalyzed reduction of nitroaromatics, employing pinacol as a reducing agent, which enables subsequent diazotization and halogenation steps. This methodology represents a step-economical, practical, and alternative procedure for synthesizing haloaromatics directly from nitroaromatics.
Collapse
Affiliation(s)
- Raquel Hernández-Ruiz
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| | - Sara Gómez-Gil
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| | - María R Pedrosa
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| | - Samuel Suárez-Pantiga
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| | - Roberto Sanz
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| |
Collapse
|
13
|
Narayanan AC, Venkatesh R, Singh S, Singh G, Modi G, Singh S, Kandasamy J. Synthesis of phenylethanoid glycosides from acrylic esters of glucose and aryldiazonium salts via palladium-catalyzed cross-coupling reactions and evaluation of their anti-Alzheimer activity. Carbohydr Res 2023; 532:108920. [PMID: 37586143 DOI: 10.1016/j.carres.2023.108920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Revised: 07/13/2023] [Accepted: 08/02/2023] [Indexed: 08/18/2023]
Abstract
Cinnamic acid-containing sugar compounds such as phenylethanoid glycosides are widely present in nature and display various biological activities. In this work, the synthesis of trans-cinnamic acid containing phenylethanoid glycosides was achieved via palladium-catalyzed cross-coupling reactions between glycosyl acrylic esters and aryldiazonium salts. A wide range of functionalized aryldiazonium salts were successfully coupled with 6-O- and 4-O-acrylic esters of glucose under optimized conditions. The reactions proceeded at room temperature in the absence of additives and base. The desired products were obtained in good to excellent yields. Selected compounds from the library were screened for anti-Alzheimer activity, while compound 16 displayed significant inhibitory activities against butyrylcholinesterase (BChE) and acetylcholinesterase (AChE) enzymes.
Collapse
Affiliation(s)
- Aswathi C Narayanan
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Rapelly Venkatesh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Shweta Singh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Gourav Singh
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Gyan Modi
- Department of Pharmaceutical Engineering & Technology, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005, India
| | - Sundaram Singh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Jeyakumar Kandasamy
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh, 221005, India; Department of Chemistry, Pondicherry University, Pondicherry, 605014, India.
| |
Collapse
|
14
|
Hsu CY, Obaid Aldulaimi AK, Humam Sami M, Bahir H, Adhab AH, Saraswat SK. Hydrazinosulfonylation of aryl electrophiles: a straightforward approach for the synthesis of aryl N-aminosulfonamides. RSC Adv 2023; 13:18546-18560. [PMID: 37346957 PMCID: PMC10281008 DOI: 10.1039/d3ra03123c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 06/09/2023] [Indexed: 06/23/2023] Open
Abstract
In recent years, the direct hydrazinosulfonylation of aryl electrophiles with SO2 and hydrazines has emerged as an efficient and versatile method for the synthesis of aryl N-aminosulfonamides. This method has the advantages of being operationally simple and requiring only readily available starting materials. This review article is an attempt to survey literature describing the preparation of aryl N-aminosulfonamides through the direct hydrazinosulfonylation of aryl electrophiles with SO2 and hydrazines, with special attention paid to the mechanistic features of the reactions. It can be used as a guide for chemists to apply the best hydrazinosulfonylation conditions in their work or serve as inspiration for future research related to the topic.
Collapse
Affiliation(s)
- Chou-Yi Hsu
- Department of Pharmacy, Chia Nan University of Pharmacy and Science Tainan Taiwan
| | | | | | - Hala Bahir
- Medical Technical College, Al-Farahidi University Iraq
| | | | | |
Collapse
|
15
|
Vincent CA, Ripak A, Troian-Gautier L, Tambar UK. Photocatalytic conversion of aryl diazonium salts to sulfonyl fluorides. Tetrahedron 2023; 139:133364. [PMID: 38404686 PMCID: PMC10887421 DOI: 10.1016/j.tet.2023.133364] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Sulfonyl fluorides have emerged as powerful tools in chemical biology for the selective labelling of proteins. A photocatalytic method is described for the conversion of aryl diazonium salts to aryl sulfonyl fluorides. The diazonium substrates are easily obtained in one step from functionalized anilines. We present the optimization of this mild method for the synthesis of sulfonyl fluorides, the scope of the transformation with a series of functionalized diazonium salts, and we discuss photophysical measurements that provide detailed information about the mechanism of the photochemical process.
Collapse
Affiliation(s)
- Cooper A. Vincent
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390-9038, United States
| | - Alexia Ripak
- Université Catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Ludovic Troian-Gautier
- Université Catholique de Louvain (UCLouvain), Institut de la Matière Condensée et des Nanosciences (IMCN), Molecular Chemistry, Materials and Catalysis (MOST), Place Louis Pasteur 1, bte L4.01.02, 1348, Louvain-la-Neuve, Belgium
| | - Uttam K. Tambar
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX, 75390-9038, United States
| |
Collapse
|
16
|
Qian C, Li X, Zhang M. Arene Diazonium Tetrafluoroborate Salts: Novel Lewis Acid Catalysts for Friedel‐Crafts Alkylation of Indoles with α,β‐Unsaturated Ketones. ChemistrySelect 2023. [DOI: 10.1002/slct.202204860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Cunwei Qian
- School of Chemical & Environmental Engineering Yancheng Teachers University Yancheng 224007 Jiangsu China
| | - Xian Li
- School of Chemical & Environmental Engineering Yancheng Teachers University Yancheng 224007 Jiangsu China
| | - Ming Zhang
- School of Chemical & Environmental Engineering Yancheng Teachers University Yancheng 224007 Jiangsu China
| |
Collapse
|
17
|
Zeng X, Wang C, Yan W, Rong J, Song Y, Xiao Z, Cai A, Liang SH, Liu W. Aryl Radical Enabled, Copper-Catalyzed Sonogashira-Type Cross-Coupling of Alkynes with Alkyl Iodides. ACS Catal 2023; 13:2761-2770. [PMID: 37800120 PMCID: PMC10552849 DOI: 10.1021/acscatal.2c05901] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Despite the success of Sonogashira coupling for the synthesis of arylalkynes and conjugated enynes, the engagement of unactivated alkyl halides in such reactions remains historically challenging. We report herein a strategy that merges Cu-catalyzed alkyne transfer with the aryl radical activation of carbon-halide bonds to enable a general approach for the coupling of alkyl iodides with terminal alkynes. This unprecedented Sonogashira-type cross-coupling reaction tolerates a broad range of functional groups and has been applied to the late-stage cross-coupling of densely functionalized pharmaceutical agents as well as the synthesis of positron emission tomography tracers.
Collapse
Affiliation(s)
- Xiaojun Zeng
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Chao Wang
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Wenhao Yan
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Jian Rong
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia 30322, United States
| | - Yanshan Song
- School of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Zhiwei Xiao
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia 30322, United States
| | - Aijie Cai
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| | - Steven H Liang
- Department of Radiology and Imaging Sciences, Emory University, Atlanta, Georgia 30322, United States
| | - Wei Liu
- Department of Chemistry, University of Cincinnati, Cincinnati, Ohio 45221, United States
| |
Collapse
|
18
|
Kogure Y, Ueno S. Ruthenium-Catalyzed Cross-Coupling of Ketones as an Alkenyl Electrophile with Organoborons via Cleavage of Alkenyl C-N Bonds of in Situ Generated Enamines. Org Lett 2022; 24:9233-9237. [PMID: 36508505 DOI: 10.1021/acs.orglett.2c03765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A ruthenium-catalyzed cross-coupling reaction of ketones with organoboronic esters was developed. In this reaction, ketones possessing a pyridine-directing group directly functions as an alkenyl electrophile for coupling with organoboronates in the presence of pyrrolidine and a ruthenium catalyst. This reaction proceeds via the catalytic cleavage of the alkenyl carbon-nitrogen bond in the enamines generated in situ from ketones with pyrrolidine, benzylamine, or isoindoline.
Collapse
Affiliation(s)
- Yuya Kogure
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
| | - Satoshi Ueno
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Technology, 1404-1 Katakura, Hachioji, Tokyo 192-0982, Japan
| |
Collapse
|
19
|
Veatch AM, Liu S, Alexanian EJ. Cobalt-Catalyzed Deaminative Amino- and Alkoxycarbonylation of Aryl Trialkylammonium Salts Promoted by Visible Light. Angew Chem Int Ed Engl 2022; 61:e202210772. [PMID: 36256542 PMCID: PMC9729412 DOI: 10.1002/anie.202210772] [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: 07/21/2022] [Indexed: 11/07/2022]
Abstract
Catalytic carbonylations of aryl electrophiles via C(sp2 )-N cleavage remains a significant challenge. Herein, we demonstrate an aminocarbonylation of aniline-derived trialkylammonium salts promoted by visible light with a simple cobalt catalyst. The reaction proceeds under mild conditions suitable for late-stage functionalization and is amenable to telescoped carbonylations directly from anilines. A range of alkylamines are successful partners, and alkoxycarbonylation is also demonstrated. Mechanistic studies and DFT calculations support a novel mechanism for catalytic carbonylations of aryl electrophiles involving a key visible light-induced carbonyl photodissociation.
Collapse
Affiliation(s)
- Alexander M Veatch
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Shubin Liu
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Research Computing Center, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Erik J Alexanian
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| |
Collapse
|
20
|
Matelienė (née Dauksaîtė) L, Gu X, Brunner H. The Impact of Macrokinetic Effects on the Heck‐Matsuda Reaction Using in‐situ Generated and Immobilized Pd‐Catalysts. ChemistrySelect 2022. [DOI: 10.1002/slct.202201230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Xiaoting Gu
- Material Science Atotech USA Inc. c/o Case Western Reserve University 2111 Martin Luther King Jr. Drive Cleveland Ohio 44106 United States of America
| | - Heiko Brunner
- Organic Chemistry Atotech Deutschland GmbH & Co. KG Erasmusstrasse 20 10553 Berlin Germany
| |
Collapse
|
21
|
Bibi R, Khan IU, Hassan A. Steric evaluation of Pyox ligands for asymmetric intermolecular Heck-Matsuda reaction. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
22
|
Chen D, Wei L, Yu Y, Zhao L, Sun Q, Han C, Lu J, Nie H, Shao LX, Qian J, Yang Z. Size-Selective Suzuki-Miyaura Coupling Reaction over Ultrafine Pd Nanocatalysts in a Water-Stable Indium-Organic Framework. Inorg Chem 2022; 61:15320-15324. [PMID: 36137280 DOI: 10.1021/acs.inorgchem.2c02877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal nanoparticles stabilized by crystalline metal-organic frameworks (MOFs) are highly promising for green heterogeneous catalysis. In this work, in situ formed ultrafine Pd nanocatalysts with an average size of 3.14 nm have been successfully immobilized into the mesopores or defects of a water-stable indium-based MOF by the double-solvent method and subsequent reduction. Significantly, the obtained Pd@InOF-1 displays an obvious and satisfactory size-selective effect in the Suzuki-Miyaura coupling reaction between arylboronic acids and aryl bromides. On the basis of the synergistic effect, microporous InOF-1 nanorods afford a confined space for improving the selectivity of target products while Pd nanoparticles endow abundant active sites for catalysis. Herein, choosing the smallest size reactant with only one benzene ring gives the highest isolated yield of 90%, and if the size is larger, the yield is obviously reduced or even the target product could not be collected. Looking forward, this demonstrated study not only assembles a well-designed Pd@MOF composite with unique micro-nanostructures but also delivers an impressive option for cross-coupling reaction, which has implications for the further development of MOF hybrids for sustainable applications.
Collapse
Affiliation(s)
- Dandan Chen
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Linsha Wei
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Yihan Yu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Lei Zhao
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Qiuhong Sun
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Cheng Han
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Jianmei Lu
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Huagui Nie
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Li-Xiong Shao
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Jinjie Qian
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| | - Zhi Yang
- Key Laboratory of Carbon Materials of Zhejiang Province, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, P. R. China
| |
Collapse
|
23
|
Ghigo G, Bonomo M, Antenucci A, Damin A, Dughera S. Ullmann homocoupling of arenediazonium salts in a deep eutectic solvent. Synthetic and mechanistic aspects. RSC Adv 2022; 12:26640-26647. [PMID: 36275154 PMCID: PMC9487193 DOI: 10.1039/d2ra05272e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 09/08/2022] [Indexed: 11/21/2022] Open
Abstract
A deep eutectic solvent (DES) based on glycerol and KF is successfully exploited as a solvent medium in Ullmann homocoupling of arenediazonium salts. The reactions were carried out in mild conditions and target products were obtained in fairly good yields. A computational study is presented aiming to understand the reaction mechanism and Raman spectroscopy is employed as an experimental tool to support it.
Collapse
Affiliation(s)
- Giovanni Ghigo
- Department of Chemistry, University of Turin Via Pietro Giuria 7 10125 Turin Italy
| | - Matteo Bonomo
- Department of Chemistry, University of Turin Via Pietro Giuria 7 10125 Turin Italy
- NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin Via Gioacchino Quarello 15/a 10125 Turin Italy
| | - Achille Antenucci
- Department of Chemistry, University of Turin Via Pietro Giuria 7 10125 Turin Italy
| | - Alessandro Damin
- Department of Chemistry, University of Turin Via Pietro Giuria 7 10125 Turin Italy
- NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin Via Gioacchino Quarello 15/a 10125 Turin Italy
| | - Stefano Dughera
- Department of Chemistry, University of Turin Via Pietro Giuria 7 10125 Turin Italy
| |
Collapse
|
24
|
Transition Metal Catalyzed Hiyama Cross-Coupling: Recent Methodology Developments and Synthetic Applications. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27175654. [PMID: 36080422 PMCID: PMC9458230 DOI: 10.3390/molecules27175654] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022]
Abstract
Hiyama cross-coupling is a versatile reaction in synthetic organic chemistry for the construction of carbon-carbon bonds. It involves the coupling of organosilicons with organic halides using transition metal catalysts in good yields and high enantioselectivities. In recent years, hectic progress has been made by researchers toward the synthesis of diversified natural products and pharmaceutical drugs using the Hiyama coupling reaction. This review emphasizes the recent synthetic developments and applications of Hiyama cross-coupling.
Collapse
|
25
|
Venkatesh R, Tiwari V, Kandasamy J. Copper(I)-Catalyzed Sandmeyer-Type S-Arylation of 1-Thiosugars with Aryldiazonium Salts under Mild Conditions. J Org Chem 2022; 87:11414-11432. [PMID: 35994736 DOI: 10.1021/acs.joc.2c00930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Preparation of S-aryl thioglycosides from 1-thiosugars via S-arylation was demonstrated under mild reaction conditions. A wide range of protected and unprotected 1-thiosugars derived from glucose, glucosamine, galactose, mannose, ribose, maltose, and lactose underwent cross-coupling reactions with functionalized aryldiazonium salts in the presence of copper(I) chloride and DBU. The desired products were obtained in 55-88% yields within 5 min. Various functional groups, including halogens, were tolerated under standard reaction conditions. Synthesis of the biologically relevant antidiabetic dapagliflozin S-analogue and arbutin S-analogues (tyrosinase inhibitors) was demonstrated.
Collapse
Affiliation(s)
- Rapelly Venkatesh
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Varsha Tiwari
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Jeyakumar Kandasamy
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| |
Collapse
|
26
|
Li X, Chen Z, Liu Y, Luo N, Chen W, Liu C, Yu F, Huang J. Nickel-Catalyzed Reductive Borylation of Enaminones via C(sp 2)-N Bond Cleavage. J Org Chem 2022; 87:10349-10358. [PMID: 35895906 DOI: 10.1021/acs.joc.2c00096] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The cleavage and transformation of alkenyl C(sp2)-N bonds is a significant synthetic challenge. Herein we described an unprecedented nickel-catalyzed reductive borylation of enaminones to synthesize β-ketone boronic esters. Notably, B2pin2 played the dual role in this process, and water served as a hydrogen source, which was transferred to target products. The air-stable nickel catalyst was applied to the cleavage of alkenyl C(sp2)-N bonds, concomitant with the reductive process of the alkenyl boronic ester intermediates, on the basis of the mechanism study.
Collapse
Affiliation(s)
- Xiaoning Li
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China.,Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 341000, PR China
| | - Zunsheng Chen
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Yan Liu
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Nianhua Luo
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Weiming Chen
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Chenfu Liu
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Fuchao Yu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming 650500, PR China
| | - Jiuzhong Huang
- School of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China.,Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education, Gannan Medical University, Ganzhou 341000, PR China
| |
Collapse
|
27
|
Li T, Ciampi S, Darwish N. The Surface Potential of Zero Charge Controls the Kinetics of Diazonium Salts Electropolymerization. ChemElectroChem 2022. [DOI: 10.1002/celc.202200255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tiexin Li
- School of Molecular and Life Sciences Curtin University Bentley WA 6102 Australia
| | - Simone Ciampi
- School of Molecular and Life Sciences Curtin University Bentley WA 6102 Australia
| | - Nadim Darwish
- School of Molecular and Life Sciences Curtin University Bentley WA 6102 Australia
| |
Collapse
|
28
|
Shen Y, Mahjour B, Cernak T. Development of copper-catalyzed deaminative esterification using high-throughput experimentation. Commun Chem 2022; 5:83. [PMID: 36698013 PMCID: PMC9814592 DOI: 10.1038/s42004-022-00698-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 06/28/2022] [Indexed: 01/28/2023] Open
Abstract
Repurposing of amine and carboxylic acid building blocks provides an enormous opportunity to expand the accessible chemical space, because amine and acid feedstocks are typically low cost and available in high diversity. Herein, we report a copper-catalyzed deaminative esterification based on C-N activation of aryl amines via diazonium salt formation. The reaction was specifically designed to complement the popular amide coupling reaction. A chemoinformatic analysis of commercial building blocks demonstrates that by utilizing aryl amines, our method nearly doubles the available esterification chemical space compared to classic Fischer esterification with phenols. High-throughput experimentation in microliter reaction droplets was used to develop the reaction, along with classic scope studies, both of which demonstrated robust performance against hundreds of substrate pairs. Furthermore, we have demonstrated that this new esterification is suitable for late-stage diversification and for building-block repurposing to expand chemical space.
Collapse
Affiliation(s)
- Yuning Shen
- grid.214458.e0000000086837370Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109 USA
| | - Babak Mahjour
- grid.214458.e0000000086837370Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109 USA
| | - Tim Cernak
- grid.214458.e0000000086837370Department of Medicinal Chemistry, University of Michigan, Ann Arbor, MI 48109 USA
| |
Collapse
|
29
|
Hu Z, Wang Y, Ma P, Wu X, Wang J. Nickel(0)-Catalyzed Decarbonylative Cross-Coupling of Aromatic Esters with Arylboronic Acids via Chelation Assistance. ACS OMEGA 2022; 7:21537-21545. [PMID: 35785273 PMCID: PMC9245102 DOI: 10.1021/acsomega.2c01105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
10-Arylbenzo[h]quinolines were synthesized by cross-coupling of ethyl benzo[h]quinoline-10-carboxylate with arylboronic acids via group-directed Ni(0) catalyzation. The catalytic system combining Ni(COD)2 (10 mol %) with PCy3 (20 mol %) and t-BuOK (3 equiv) was optimal for the above transformations. A series of arylboronic acids reacted with ethyl benzo[h]quinoline-10-carboxylates for the production of various substituted 10-phenyl[h]quinolines in moderate and good yields under optimized reaction conditions.
Collapse
Affiliation(s)
- Zhenzhu Hu
- Department
of Chemistry, College of Science, Tianjin
University, Tianjin 300350, P. R. China
| | - Yuhang Wang
- Department
of Chemistry, College of Science, Tianjin
University, Tianjin 300350, P. R. China
| | - Peng Ma
- Department
of Chemistry, College of Science, Tianjin
University, Tianjin 300350, P. R. China
| | - Xiaqian Wu
- Department
of Chemistry, College of Science, Tianjin
University, Tianjin 300350, P. R. China
| | - Jianhui Wang
- Department
of Chemistry, College of Science, Tianjin
University, Tianjin 300350, P. R. China
- Institute
of Molecular Plus, Tianjin University, Tianjin 300350, P. R. China
| |
Collapse
|
30
|
Abstract
Arenediazonium o-benzenedisulfonimides have been used as efficient electrophilic partners in Cu(I) catalysed Ullmann-type coupling. The synthetic protocols are mild and easy, and produced either N-alkylanilines, aryl ethers, or thioethers in fairly good yields (18 positive examples, average yield 66%). o-Benzenedisulfonimide was recovered at the end of the reactions and was reused to prepare the starting salts for further reactions. It is noteworthy that diazonium salts have been used as electrophilic partners in the Ullmann-type protocol for the first time.
Collapse
|
31
|
Toupalas G, Morandi B. Non-innocent electrophiles unlock exogenous base-free coupling reactions. Nat Catal 2022. [DOI: 10.1038/s41929-022-00770-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
32
|
Cornejo NR, Amofah B, Lipinski A, Langlais PR, Ghosh I, Jewett JC. Direct Intracellular Delivery of Benzene Diazonium Ions As Observed by Increased Tyrosine Phosphorylation. Biochemistry 2022; 61:656-664. [PMID: 35302352 PMCID: PMC9203130 DOI: 10.1021/acs.biochem.1c00820] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A challenge within the field of bioconjugation is developing probes to uncover novel information on proteins and other biomolecules. Intracellular delivery of these probes offers the promise of giving relevant context to this information, and these probes can serve as hypothesis-generating tools within complex systems. Leveraging the utility of triazabutadiene chemistry, herein, we discuss the development of a probe that undergoes reduction-mediated deprotection to rapidly deliver a benzene diazonium ion (BDI) into cells. The intracellular BDI resulted in an increase in global tyrosine phosphorylation levels. Seeing phosphatase dysregulation as a potential source of this increase, a tyrosine phosphatase (PTP1B) was tested and shown to be both inhibited and covalently modified by the BDI. In addition to the expected azobenzene formation at tyrosine side chains, key reactive histidine residues were also modified.
Collapse
Affiliation(s)
- Natasha R Cornejo
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, Arizona 85721, United States
| | - Bismark Amofah
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, Arizona 85721, United States
| | - Austin Lipinski
- Department of Medicine, Division of Endocrinology, University of Arizona College of Medicine, Tucson, Arizona 85721, United States
| | - Paul R Langlais
- Department of Medicine, Division of Endocrinology, University of Arizona College of Medicine, Tucson, Arizona 85721, United States
| | - Indraneel Ghosh
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, Arizona 85721, United States
| | - John C Jewett
- Department of Chemistry and Biochemistry, University of Arizona, 1306 East University Boulevard, Tucson, Arizona 85721, United States
| |
Collapse
|
33
|
Karpov GO, Bermeshev MV. Addition Polymerization of Cyclopentadiene in the Presence of Catalytic Systems Based on Pd(0) Complexes and Organic Cocatalysts. RUSS J APPL CHEM+ 2022. [DOI: 10.1134/s1070427222030119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
34
|
Nucleophilic substitution reactions of unbranched alkyl amines using triazine reagents. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
35
|
Ojha S, Panda N. Pd-Catalyzed desulfitative arylation of olefins by N-methoxysulfonamide. Org Biomol Chem 2022; 20:1292-1298. [PMID: 35073396 DOI: 10.1039/d1ob02360h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Pd-catalyzed protocol for the desulfitative Heck-type reaction of N-methoxy aryl sulfonamides with alkenes was reported. The cross-coupling reaction was performed successfully with a variety of olefins to obtain aryl alkenes. Different substituents on the aromatic ring of N-methoxysulfonamides were also found to be compatible with the reaction conditions. Expectedly, the reaction proceeds through CuCl2-promoted generation of the nitrogen radical and subsequent desulfonylation under thermal conditions to afford the aryl radical for the Pd-catalyzed coupling reaction. N-Methoxysulfonamide was further exploited for the synthesis of symmetrical biaryls in the presence of CuCl2.
Collapse
Affiliation(s)
- Subhadra Ojha
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha-769008, India.
| | - Niranjan Panda
- Department of Chemistry, National Institute of Technology, Rourkela, Odisha-769008, India.
| |
Collapse
|
36
|
Zhang B, Deng W, Xu Z. Mechanism of Ligand‐Controlled Chemoselectivity‐Switchable Ni‐Catalyzed C−N Cross‐Coupling of Amine. ChemistrySelect 2022. [DOI: 10.1002/slct.202103723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bo Zhang
- School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 P.R. China
| | - Wei Deng
- School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 P.R. China
| | - Zheng‐Yang Xu
- School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 P.R. China
| |
Collapse
|
37
|
Lood K, Tikk T, Krüger M, Schmidt B. Methylene Capping Facilitates Cross-Metathesis Reactions of Enals: A Short Synthesis of 7-Methoxywutaifuranal from the Xylochemical Isoeugenol. J Org Chem 2022; 87:3079-3088. [PMID: 35037461 DOI: 10.1021/acs.joc.1c02851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Four combinations of type-I olefins isoeugenol and 4-hydroxy-3-methoxystyrene with type-II olefins acrolein and crotonaldehyde were investigated in cross-metathesis (CM) reactions. While both type-I olefins are suitable CM partners for this transformation, we observed synthetically useful conversions only with type-II olefin crotonaldehyde. For economic reasons, isoeugenol, a cheap xylochemical available from renewable lignocellulose or from clove oil, is the preferred type-I CM partner. Nearly quantitative conversions to coniferyl aldehyde by the CM reaction of isoeugenol and crotonaldehyde can be obtained at ambient temperature without a solvent or at high substrate concentrations of 2 mol·L-1 with the second-generation Hoveyda-Grubbs catalyst. Under these conditions, the ratio of reactants can be reduced to 1:1.5 and catalyst loadings as low as 0.25 mol % are possible. The high reactivity of the isoeugenol/crotonaldehyde combination in olefin metathesis reactions was demonstrated by a short synthesis of the natural product 7-methoxywutaifuranal, which was obtained from isoeugenol in a 44% yield over five steps. We suggest that the superior performance of crotonaldehyde in the CM reactions investigated can be rationalized by "methylene capping", i.e., the steric stabilization of the propagating Ru-alkylidene species.
Collapse
Affiliation(s)
- Kajsa Lood
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| | - Triin Tikk
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| | - Mandy Krüger
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| | - Bernd Schmidt
- Institut fuer Chemie, Universitaet Potsdam, Karl-Liebknecht-Straße 24-25, D-14476 Potsdam-Golm, Germany
| |
Collapse
|
38
|
Jiang S, Nan N, He J, Guo J, Qin J, Xie Y, Ouyang X, Song R. Recent Progress in Aryl Radical-Mediated Cyclization of Unsaturated Bonds Based on Aryldiazonium Salts. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202210013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
39
|
Chen J, Xie X, Liu J, Yu Z, Su W. Revisiting aromatic diazotization and aryl diazonium salts in continuous flow: highlighted research during 2001–2021. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00001f] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Aryl diazonium salts play an important role in chemical transformations; however their explosive nature limits their applications in batch.
Collapse
Affiliation(s)
- Jianli Chen
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Xiaoxuan Xie
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Jiming Liu
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Zhiqun Yu
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| | - Weike Su
- National Engineering Research Center for Process Development of Active Pharmaceutical Ingredients, Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, P.R. China
| |
Collapse
|
40
|
Ji S, Qin S, Yin C, Luo L, Zhang H. Unreactive C-N Bond Activation of Anilines via Photoinduced Aerobic Borylation. Org Lett 2021; 24:64-68. [PMID: 34898225 DOI: 10.1021/acs.orglett.1c03590] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Unreactive C-N bond activation of anilines was achieved by photoinduced aerobic borylation. A diverse range of tertiary and secondary anilines were converted to aryl boronate esters in moderate to good yields with wide functional group tolerance under simple and ambient photochemical conditions. This transformation achieved the direct and facile C-N bond activation of unreactive anilines, providing a convenient and practical route transforming widely available anilines into useful aryl boronate esters.
Collapse
Affiliation(s)
- Shuohan Ji
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China.,College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Shengxiang Qin
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China.,College of Chemistry, Nanchang University, Nanchang 330031, China
| | - Chunyu Yin
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Lu Luo
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China
| | - Hua Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, South-Central University for Nationalities, Wuhan 430074, China.,College of Chemistry, Nanchang University, Nanchang 330031, China
| |
Collapse
|
41
|
Tadiparthi K. Total Syntheses of Centrolobines: A Two‐Decade Journey. ChemistrySelect 2021. [DOI: 10.1002/slct.202102901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
42
|
de Souza-Ferrari J, Silva-Júnior EA, Vale JA, de Albuquerque Simões LA, de Moraes-Júnior MO, Dantas BB, de Araújo DAM. A late-stage diversification via Heck-Matsuda arylation: Straightforward synthesis and cytotoxic/antiproliferative profiling of novel aryl-labdane-type derivatives. Bioorg Med Chem Lett 2021; 52:128393. [PMID: 34606997 DOI: 10.1016/j.bmcl.2021.128393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 09/23/2021] [Accepted: 09/27/2021] [Indexed: 11/18/2022]
Abstract
In the current study a late-stage diversification of unactivated olefins labd-8(17)-en-15-oic acid (1a) and methyl labd-8(17)-en-15-oate (1b) via Heck-Matsuda arylation is described. The reaction provided straightforward and practical access to a series of novel aryl-labdane-type derivatives (HM adducts 3a-h) in moderate to good yields in a highly regio- and stereoselective manner at room temperature under air atmosphere. The cytotoxic activity of these compounds was investigated in vitro against three different human cell lines (THP-1, K562, MCF-7). Of these, HM adduct 3h showed a selective effect in all cancer cell lines tested and was selected for extended biological investigations in a leukemia cell line (K562), which demonstrated that the cytotoxic/antiproliferative activity observed in this compound might be mediated by induction of cell cycle arrest at the sub-G1 phase and by autophagy-induced cell death. Taken together, these findings indicate that further investigation into the anticancer activity against chronic myeloid leukemia from aryl-labdane-type derivatives may be fruitful.
Collapse
Affiliation(s)
- Jailton de Souza-Ferrari
- Department of Chemistry, Federal University of Paraiba, Cidade Universitária, Campus I. CEP 58051-900, João Pessoa, Paraíba, Brazil.
| | - Edvaldo Alves Silva-Júnior
- Department of Chemistry, Federal University of Paraiba, Cidade Universitária, Campus I. CEP 58051-900, João Pessoa, Paraíba, Brazil
| | - Juliana Alves Vale
- Department of Chemistry, Federal University of Paraiba, Cidade Universitária, Campus I. CEP 58051-900, João Pessoa, Paraíba, Brazil
| | | | - Manoel Oliveira de Moraes-Júnior
- Department of Biotechnology, Federal University of Paraiba, Cidade Universitária, Campus I. CEP 58051-900, João Pessoa, Paraíba, Brazil
| | - Bruna Braga Dantas
- Department of Biotechnology, Federal University of Paraiba, Cidade Universitária, Campus I. CEP 58051-900, João Pessoa, Paraíba, Brazil
| | | |
Collapse
|
43
|
Sand P, Schmidt B. Ruthenium‐Catalyzed Sulfoalkenylation of Acetanilides and Dual‐Use of the Catalyst Directing Group. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101216] [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)
- Patrick Sand
- Institut für Chemie Universtität Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam-Golm Germany
| | - Bernd Schmidt
- Institut für Chemie Universtität Potsdam Karl-Liebknecht-Straße 24–25 14476 Potsdam-Golm Germany
| |
Collapse
|
44
|
Hussain N, Hussain A. Advances in Pd-catalyzed C-C bond formation in carbohydrates and their applications in the synthesis of natural products and medicinally relevant molecules. RSC Adv 2021; 11:34369-34391. [PMID: 35497292 PMCID: PMC9042403 DOI: 10.1039/d1ra06351k] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Accepted: 09/27/2021] [Indexed: 12/13/2022] Open
Abstract
Advances in the Pd-catalyzed synthesis of C-glycosides and branched sugars are summarized herein and the strategies are categorized based on named reactions or types of sugar moieties involved in the reactions. These include cross-coupling reactions, C-H activations, and carbonylative cross-coupling reactions. Applications of Pd-catalyzed C-glycosylation reactions are discussed in the synthesis of natural products and biologically active molecules such as bergenin, papulacandin D, and SGLT2-inhibitors. Important mechanistic cycles are drawn and the mechanisms for how Pd-activates the sugar moieties for various coupling partners are discussed. The directing group-assisted C-glycosylation and some intramolecular C-H activation reactions are also included.
Collapse
Affiliation(s)
- Nazar Hussain
- Department of Medicinal Chemistry, Faculty of Ayurveda, Institute of Medical Sciences, BHU Varanasi-221005 India
| | - Altaf Hussain
- Department of Chemistry, Govt. Degree College Poonch J&K India 185101
| |
Collapse
|
45
|
Tang H, Liu M, Zhu M, Cui B, Shi Y, Cao C. C(sp2)-C(sp2) Suzuki cross-coupling of arylammonium salts catalyzed by a stable Pd–NHC complex. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
46
|
Investigation of stable solid diazonium salt by molecular structure, Hirshfeld surface analysis, optical and electrochemical studies, and applications. J Mol Model 2021; 27:296. [PMID: 34557964 DOI: 10.1007/s00894-021-04910-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 09/08/2021] [Indexed: 10/20/2022]
Abstract
The title compound is a new pyrazolone derivative which was synthesized starting from p-sulphophenyl-3-methyl-5-pyrazolone (1) by nitrosation at low temperature to afford the corresponding p-sulphophenyl-3-methyl-4-nitroso-5-pyrazolone which can exist both in nitroso (2a) and oxime tautomeric forms (2b). Reduction of the latter using zinc with hydrochloric acid furnished the 4-amino-p-sulphophenyl-3-methyl-5-pyrazolone (3). The diazotization of (3) under careful control of temperature and pH afforded the p-sulphophenyl-3-methyl-5-pyrazolone diazonium salt (4) which was re-crystallized from acidified ethanol to afford crystal suitable for X-ray studies. UV-visible spectrum and cyclic voltammetric studies were also carried out indicating λmax at 420 nm and HOMO-LUMMO energy gap was also calculated (Eg) of 2.95 eV. The molecular and crystal structures of the compound were clarified by single crystal X-ray diffraction indicated that it crystallizes as the sodium salt in the triclinic space group P -1, with the 4-azo-pyrazolone and the sulphophenyl groups being nearly coplanar. To get an insight to the intermolecular interactions in the crystal, a Hirshfeld surface analysis was also carried out.
Collapse
|
47
|
Venkatesh R, Singh AK, Lee YR, Kandasamy J. Palladium-catalyzed synthesis of α-aryl acetophenones from styryl ethers and aryl diazonium salts via regioselective Heck arylation at room temperature. Org Biomol Chem 2021; 19:7832-7837. [PMID: 34549234 DOI: 10.1039/d1ob01503f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Preparation of α-aryl acetophenones from styryl ethers and aryldiazonium salts is described. The reaction is catalyzed by palladium acetate at room temperature in the absence of ligand and base. The developed method is highly attractive in terms of reaction conditions, substrate scope, functional group tolerance and yields. Synthetic applications of the present method are demonstrated by preparing α-aryl indoles and 3-aryl isocoumarin from styryl ethers.
Collapse
Affiliation(s)
- Rapelly Venkatesh
- Department of chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005.
| | - Adesh Kumar Singh
- Department of chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005.
| | - Yong Rok Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, 38541 Republic of Korea
| | - Jeyakumar Kandasamy
- Department of chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh-221005.
| |
Collapse
|
48
|
Wurzer N, Klimczak U, Babl T, Fischer S, Angnes RA, Kreutzer D, Pattanaik A, Rehbein J, Reiser O. Heck-Type Coupling of Fused Bicyclic Vinylcyclopropanes: Synthesis of 1,2-Dihydropyridines, 2,3-Dihydro-1 H-azepines, 1,4-Cyclohexadienes, and 2 H-Pyrans. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02564] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Nikolai Wurzer
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| | - Urszula Klimczak
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| | - Tobias Babl
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| | - Sebastian Fischer
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| | - Ricardo A. Angnes
- Institute of Chemistry, University of Campinas, Rua Carlos Gomes, 241, Cidade Universitária, Campinas, 13083-970 São Paulo, Brazil
| | - Dominik Kreutzer
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| | - Aryaman Pattanaik
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| | - Julia Rehbein
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| | - Oliver Reiser
- Institute of Organic Chemistry, University of Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany
| |
Collapse
|
49
|
Yang YM, Yan W, Hu HW, Luo Y, Tang ZY, Luo Z. Photoinduced Acetylation of Anilines under Aqueous and Catalyst-Free Conditions. J Org Chem 2021; 86:12344-12353. [PMID: 34370464 DOI: 10.1021/acs.joc.1c01290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A green and efficient visible-light induced functionalization of anilines under mild conditions has been reported. Utilizing nontoxic, cost-effective, and water-soluble diacetyl as photosensitizer and acetylating reagent, and water as the solvent, a variety of anilines were converted into the corresponding aryl ketones, iodides, and bromides. With advantages of environmentally friendly conditions, simple operation, broad substrate scope, and functional group tolerance, this reaction represents a valuable method in organic synthesis.
Collapse
Affiliation(s)
- Yu-Ming Yang
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China.,College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Wei Yan
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Han-Wei Hu
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China
| | - Yimin Luo
- School of Material, Sun Yat-sen University, Guangzhou 510275, China
| | - Zhen-Yu Tang
- School of Pharmaceutical Science (Shenzhen), Sun Yat-sen University, Guangzhou 510275, China.,College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Zhuangzhu Luo
- School of Material, Sun Yat-sen University, Guangzhou 510275, China
| |
Collapse
|
50
|
Synthesis of Indoles via Intermolecular and Intramolecular Cyclization by Using Palladium-Based Catalysts. Catalysts 2021. [DOI: 10.3390/catal11091018] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
As part of natural products or biologically active compounds, the synthesis of nitrogen-containing heterocycles is becoming incredibly valuable. Palladium is a transition metal that is widely utilized as a catalyst to facilitate carbon-carbon and carbon-heteroatom coupling; it is used in the synthesis of various heterocycles. This review includes the twelve years of successful indole synthesis using various palladium catalysts to establish carbon-carbon or carbon-nitrogen coupling, as well as the conditions that have been optimized.
Collapse
|