1
|
Lei X, Wang Y, Ma S, Jiao P. Purple Light-Promoted Coupling of Bromopyridines with Grignard Reagents via SET. J Org Chem 2024; 89:7148-7155. [PMID: 38718346 DOI: 10.1021/acs.joc.4c00525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Alkyl- and arylpyridines and 2,2'-bipyridines are conventionally prepared by Minisci reactions of pyridines and transition metal-catalyzed coupling reactions of halopyridines. Herein, purple light-promoted radical coupling reactions of 2- or 4-bromopyridines with Grignard reagents in Et2O or a mixture of Et2O and tetrahydrofuran in regular glassware without the need for a transition metal catalyst were disclosed for the first time. Methyl, primary and secondary alkyl, cycloalkyl, aryl, heteroaryl, pyridyl, and alkynyl Grignard reagents were compatible with the protocol. As a result, alkyl- and arylpyridines and 2,2'-bipyridines were easily prepared. Single electron transfer from the Grignard reagent to bromopyridine was stimulated by purple light. An electron extruded from the dimerization of the Grignard reagent worked as the catalyst. Light on/off experiments indicated that constant irradiation was required for product formation. Studies of radical clock substrates verified the involvement of a pyridyl radical from bromopyridine and the noninvolvement of an alkyl or aryl radical from the Grignard reagent. The available proof supports a photoinduced SRN mechanism for the new coupling reactions.
Collapse
Affiliation(s)
- Xingyu Lei
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
| | - Yihan Wang
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
| | - Shanshan Ma
- Institute of Rural Revitalization (Institute of Medicine and Health Care), Dezhou University, No. 566 West University Road, Dezhou 253023, China
| | - Peng Jiao
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing 100875, China
| |
Collapse
|
2
|
Yamanoi Y. Recent Progress on the Synthesis of Bipyridine Derivatives. Molecules 2024; 29:576. [PMID: 38338319 PMCID: PMC10856230 DOI: 10.3390/molecules29030576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024] Open
Abstract
Bipyridine and related compounds are starting materials or precursors for a variety of valuable substances such as biologically active molecules, ligands for catalysts, photosensitizers, viologens, and supramolecular architectures. Thus, it is important to classify their synthesis methods and understand their characteristics. Representative examples include methods using homo and heterocoupling of pyridine derivatives in the presence of a catalyst. Because bipyridine compounds strongly coordinate with metal centers, a decrease in catalytic activity and yield is often observed in the reaction system. To address this issue, this review provides insights into advances over the last ~30 years in bipyridine synthesis using metal complexes under both homogeneous and heterogeneous conditions. Moreover, strategies for bipyridine synthesis involving sulfur and phosphorous compounds are examined. These alternative pathways offer promising avenues for overcoming the challenges associated with traditional catalysis methods, providing a more comprehensive understanding of the synthesis landscape.
Collapse
Affiliation(s)
- Yoshinori Yamanoi
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| |
Collapse
|
3
|
Nasiri Sovari S, Kolly I, Schindler K, Djuric A, Srdic-Rajic T, Crochet A, Pavic A, Zobi F. Synthesis, characterization, and in vivo evaluation of the anticancer activity of a series of 5- and 6-(halomethyl)-2,2'-bipyridine rhenium tricarbonyl complexes. Dalton Trans 2023; 52:6934-6944. [PMID: 36916301 DOI: 10.1039/d2dt04041g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
We report the synthesis, characterization, and in vivo evaluation of the anticancer activity of a series of 5- and 6-(halomethyl)-2,2'-bipyridine rhenium tricarbonyl complexes. The study was promoted in order to understand if the presence and position of a reactive halomethyl substituent on the diimine ligand system of fac-[Re(CO)3]+ species may be a key molecular feature for the design of active and non-toxic anticancer agents. Only compounds potentially able to undergo ligand-based alkylating reactions show significant antiproliferative activity against colorectal and pancreatic cell lines. Of the new species presented in this study, one compound (5-(chloromethyl)-2,2'-bipyridine derivative) shows significant inhibition of pancreatic tumour growth in vivo in zebrafish-Panc-1 xenografts. The complex is noticeably effective at 8 μM concentration, lower than its in vitro IC50 values, being also capable of inhibiting in vivo cancer cells dissemination.
Collapse
Affiliation(s)
- Sara Nasiri Sovari
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Isabelle Kolly
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Kevin Schindler
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Ana Djuric
- Department of experimental oncology, Institute for Oncology and Radiology of Serbia, Pasterova 14, Beograd, Republic of Serbia
| | - Tatjana Srdic-Rajic
- Department of experimental oncology, Institute for Oncology and Radiology of Serbia, Pasterova 14, Beograd, Republic of Serbia
| | - Aurelien Crochet
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| | - Aleksandar Pavic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Vojvode Stepe 444a, 11000 Belgrade, Republic of Serbia.
| | - Fabio Zobi
- Department of Chemistry, University of Fribourg, Chemin du Musée 10, 1700 Fribourg, Switzerland.
| |
Collapse
|
4
|
Su ZM, Twilton J, Hoyt CB, Wang F, Stanley L, Mayes HB, Kang K, Weix DJ, Beckham GT, Stahl SS. Ni- and Ni/Pd-Catalyzed Reductive Coupling of Lignin-Derived Aromatics to Access Biobased Plasticizers. ACS CENTRAL SCIENCE 2023; 9:159-165. [PMID: 36844489 PMCID: PMC9951286 DOI: 10.1021/acscentsci.2c01324] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Indexed: 05/19/2023]
Abstract
Lignin-derived aromatic chemicals offer a compelling alternative to petrochemical feedstocks, and new applications are the focus of extensive interest. 4-Hydroxybenzoic acid (H), vanillic acid (G), and syringic acid (S) are readily obtained via oxidative depolymerization of hardwood lignin substrates. Here, we explore the use of these compounds to access biaryl dicarboxylate esters that represent biobased, less toxic alternatives to phthalate plasticizers. Chemical and electrochemical methods are developed for catalytic reductive coupling of sulfonate derivatives of H, G, and S to access all possible homo- and cross-coupling products. A conventional NiCl2/bipyridine catalyst is able to access the H-H and G-G products, but new catalysts are identified to afford the more challenging coupling products, including a NiCl2/bisphosphine catalyst for S-S and a NiCl2/phenanthroline/PdCl2/phosphine cocatalyst system for H-G, H-S, and G-S. High-throughput experimentation methods with a chemical reductant (Zn powder) are shown to provide an efficient screening platform for identification of new catalysts, while electrochemical methods can access improved yields and/or facilitate implementation on larger scale. Plasticizer tests are performed with poly(vinyl chloride), using esters of the 4,4'-biaryl dicarboxylate products. The H-G and G-G derivatives, in particular, exhibit performance advantages relative to an established petroleum-based phthalate ester plasticizer.
Collapse
Affiliation(s)
- Zhi-Ming Su
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Jack Twilton
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Caroline B. Hoyt
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Fei Wang
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Lisa Stanley
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Heather B. Mayes
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Kai Kang
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Daniel J. Weix
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| | - Gregg T. Beckham
- Renewable
Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado 80401, United States
| | - Shannon S. Stahl
- Department
of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
| |
Collapse
|
5
|
Recent Advances in Nickel-Catalyzed C-C Cross-Coupling. TOP ORGANOMETAL CHEM 2023. [DOI: 10.1007/3418_2023_85] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
|
6
|
Paparella AN, Messa F, Dilauro G, Troisi L, Perrone S, Salomone A. A Glycerol‐Based Deep Eutectic Solvent as Natural Medium and Organic Reductant for Homocoupling of (Hetero)Aryl Chlorides: a Green Route to 2,2’‐Bipyridine and Biaryl Scaffolds. ChemistrySelect 2022. [DOI: 10.1002/slct.202203438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Andrea Nicola Paparella
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali Università del Salento Prov.le Lecce-Monteroni I-73100 Lecce Italy
| | - Francesco Messa
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali Università del Salento Prov.le Lecce-Monteroni I-73100 Lecce Italy
| | - Giuseppe Dilauro
- Dipartimento di Farmacia-Scienze del Farmaco Università degli Studi di Bari ‘‘Aldo Moro'' Via E. Orabona 4 I-70125 Bari Italy
| | - Luigino Troisi
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali Università del Salento Prov.le Lecce-Monteroni I-73100 Lecce Italy
| | - Serena Perrone
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali Università del Salento Prov.le Lecce-Monteroni I-73100 Lecce Italy
| | - Antonio Salomone
- Dipartimento di Chimica Università deli Studi di Bari “Aldo Moro”, Consorzio C.I.N.M.P.I.S. Via Orabona, 4 I-70125 Bari Italy
| |
Collapse
|
7
|
Peng Y, Isshiki R, Muto K, Yamaguchi J. Decarbonylative Reductive Coupling of Aromatic Esters by Nickel and Palladium Catalyst. CHEM LETT 2022. [DOI: 10.1246/cl.220214] [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)
- Yunfei Peng
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Ryota Isshiki
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Kei Muto
- Waseda Institute for Advanced Study, 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
|
Francescato G, Silva SM, Leitão MIPS, Cordeiro C, Giannopoulos N, Gomes CSB, Pimentel C, Petronilho A. Nickel N‐Heterocyclic Carbene Complexes based on Xanthines: Synthesis and Antifungal Activity on
Candida sp
. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6687] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Giulia Francescato
- Instituto de Tecnologia Química e Biológica António Xavier, Avd Republica Oeiras Portugal
| | - Sofia Marques Silva
- Instituto de Tecnologia Química e Biológica António Xavier, Avd Republica Oeiras Portugal
| | | | - Carolina Cordeiro
- Instituto de Tecnologia Química e Biológica António Xavier, Avd Republica Oeiras Portugal
| | - Nikolaos Giannopoulos
- Instituto de Tecnologia Química e Biológica António Xavier, Avd Republica Oeiras Portugal
| | - Clara S. B. Gomes
- LAQV‐REQUIMTE, Department of Chemistry NOVA School of Science and Technology, Universidade Nova de Lisboa Caparica Portugal
- UCIBIO – Applied Molecular Biosciences Unit, Department of Chemistry School of Science and Technology, NOVA University Lisbon Caparica Portugal
| | - Catarina Pimentel
- Instituto de Tecnologia Química e Biológica António Xavier, Avd Republica Oeiras Portugal
| | - Ana Petronilho
- Instituto de Tecnologia Química e Biológica António Xavier, Avd Republica Oeiras Portugal
| |
Collapse
|
9
|
Dai Z, Wang S, Zhou N, Liu Y, Xiong Y. Novel porous organic polymers functionalized by metalloporphyrin and phosphonium salts for the efficient synergistic catalysis of CO 2 conversion under mild conditions. NEW J CHEM 2022. [DOI: 10.1039/d2nj04210j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Metalloporphyrin- and phosphonium-functionalized porous organic polymers (POPs) were fabricated successfully via a post-synthesis modification strategy, which were demonstrated to be efficient heterogeneous catalysts for CO2 conversion.
Collapse
Affiliation(s)
- Zhifeng Dai
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang Province, China
- Longgang Institute of Zhejiang Sci-Tech University, Wenzhou 325802, China
| | - Shiting Wang
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang Province, China
| | - Ning Zhou
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang Province, China
| | - Yuxia Liu
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang Province, China
| | - Yubing Xiong
- Key Laboratory of Surface & Interface Science of Polymer Materials of Zhejiang Province, Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou, 310018, Zhejiang Province, China
- Longgang Institute of Zhejiang Sci-Tech University, Wenzhou 325802, China
| |
Collapse
|
10
|
Kang K, Loud NL, DiBenedetto TA, Weix DJ. A General, Multimetallic Cross-Ullmann Biheteroaryl Synthesis from Heteroaryl Halides and Heteroaryl Triflates. J Am Chem Soc 2021; 143:21484-21491. [PMID: 34918908 PMCID: PMC9007723 DOI: 10.1021/jacs.1c10907] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Despite their importance to medicine and materials science, the synthesis of biheteroaryls by cross-coupling remains challenging. We describe here a new, general approach to biheteroaryls: the Ni- and Pd-catalyzed multimetallic cross-Ullmann coupling of heteroaryl halides with triflates. An array of 5-membered, 6-membered, and fused heteroaryl bromides and chlorides, as well as aryl triflates derived from heterocyclic phenols, proved to be viable substrates in this reaction (62 examples, 63 ± 17% average yield). The generality of this approach to biheteroaryls was further demonstrated in 96-well plate format at 10 μmol scale. An array of 96 possible products provided >90% hit rate under a single set of conditions. Further, low-yielding combinations could be rapidly optimized with a single "Toolbox Plate" of ligands, additives, and reductants.
Collapse
Affiliation(s)
- Kai Kang
- University of Wisconsin-Madison, Madison, WI 53706, USA
| | | | | | | |
Collapse
|
11
|
Hu QQ, Gao YT, Sun JC, Gao JJ, Mu HX, Li YM, Zheng YN, Yang KR, Zhu YP. Iodine-imine Synergistic Promoted Povarov-Type Multicomponent Reaction for the Synthesis of 2,2'-Biquinolines and Their Application to a Copper/Ligand Catalytic System. Org Lett 2021; 23:9000-9005. [PMID: 34748354 DOI: 10.1021/acs.orglett.1c03546] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient iodine-imine synergistic promoted Povarov-type multicomponent reaction was reported for the synthesis of a practical 2,2'-biquinoline scaffold. The tandem annulation has reconciled iodination, Kornblum oxidation, and Povarov aromatization, where the methyl group of the methyl azaarenes represents uniquely reactive input in the Povarov reaction. This method has broad substrate scope and mild conditions. Furthermore, these 2,2'-biquinoline derivatives had been directly used as bidentate ligands in metal-catalyzed reactions.
Collapse
Affiliation(s)
- Qi-Qi Hu
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Yan-Ting Gao
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Jia-Chen Sun
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Jing-Jing Gao
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Hong-Xiao Mu
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Yi-Ming Li
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Ya-Nan Zheng
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Kai-Rui Yang
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| | - Yan-Ping Zhu
- School of Pharmacy, Yantai University, Shandong, Yantai, 264005, P. R. China
| |
Collapse
|
12
|
Stevens CV, Everaert J, Debruyne M, Vanden Bussche F, Van Hecke K, Heugebaert TSA, Van Der Voort P, Van Speybroeck V. Synthesis of Nitrile-Functionalized Polydentate N-Heterocycles as Building Blocks for Covalent Triazine Frameworks. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1626-5749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractCovalent triazine frameworks (CTFs) based on polydentate ligands are highly promising supports to anchor catalytic metal complexes. The modular nature of CTFs allows to tailor the composition, structure, and function to its specific application. Access to a broad range of chelating building blocks is therefore essential. In this respect, we extended the current available set of CTF building blocks with new nitrile-functionalized N-heterocyclic ligands. This paper presents the synthesis of the six ligands which vary in the extent of the aromatic system and the denticity. The new building blocks may help in a rational design of enhanced support materials in catalysis.
Collapse
Affiliation(s)
- Christian V. Stevens
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University
| | - Jonas Everaert
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University
| | - Maarten Debruyne
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University
| | - Flore Vanden Bussche
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University
- Department of Chemistry, Faculty of Sciences, Ghent University
| | | | - Thomas S. A. Heugebaert
- SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University
| | | | | |
Collapse
|
13
|
Rubtsov AE, Malkov AV. Recent Advances in the Synthesis of 2,2′-Bipyridines and Their Derivatives. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1706030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
AbstractThe sustained interest in the synthesis of new analogues of 2,2′-bipyridines is supported by the importance of compounds featuring bipyridine core in diverse areas of chemical, biomedical and materials research, which is relayed into the development of new approaches and the expansion of existing synthetic methods. This short review covers advances in the synthesis of 2,2′-bipyridines, including both the synthesis of compounds with a given substitution pattern and the development of new methods for assembling the bipyridine core. Special attention is directed toward the use of pyridine N-oxides and metal-free protocols to facilitate the formation of bipyridines. This short review focuses primarily on reports published in the last 5–6 years.1 Introduction2 Ullmann-Type Homocoupling Reactions3 Cross-Coupling Reactions in the Synthesis of Bipyridines4 Coupling Reactions Employing Pyridine N-Oxides5 Other Methods for the Synthesis of 2,2′-Bipyridines6 Conclusions and Outlook
Collapse
|
14
|
Nohira I, Chatani N. Nickel-Catalyzed Cross-Electrophile Coupling between C(sp 2)–F and C(sp 2)–Cl Bonds by the Reaction of ortho-Fluoro-Aromatic Amides with Aryl Chlorides. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01102] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Itsuki Nohira
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
| | - Naoto Chatani
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871 (Japan)
| |
Collapse
|
15
|
Highly sensitive detection of Hg2+ using ruthenium complex-based probe in water. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
16
|
New drug approvals for 2020: Synthesis and clinical applications. Eur J Med Chem 2021; 215:113284. [PMID: 33611190 DOI: 10.1016/j.ejmech.2021.113284] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 02/03/2021] [Accepted: 02/03/2021] [Indexed: 02/06/2023]
Abstract
53 New drugs including 38 chemical entities and 15 biologics were approved by the U.S. Food and Drug Administration during 2020. Among the marketed drugs, 34 new small molecule drugs and 4 new diagnostic agents with privileged structures and novel clinical applications represent as promising leads for the development of new drugs with the similar indications and improved therapeutic efficacy. This review is mainly focused on the clinical applications and synthetic methods of 34 small-molecule drugs newly approved by the FDA in 2020.
Collapse
|
17
|
A Ru-Complex Tethered to a N-Rich Covalent Triazine Framework for Tandem Aerobic Oxidation-Knoevenagel Condensation Reactions. Molecules 2021; 26:molecules26040838. [PMID: 33562691 PMCID: PMC7914989 DOI: 10.3390/molecules26040838] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/22/2021] [Accepted: 02/02/2021] [Indexed: 11/17/2022] Open
Abstract
Herein, a highly N-rich covalent triazine framework (CTF) is applied as support for a RuIII complex. The bipyridine sites within the CTF provide excellent anchoring points for the [Ru(acac)2(CH3CN)2]PF6 complex. The obtained robust RuIII@bipy-CTF material was applied for the selective tandem aerobic oxidation-Knoevenagel condensation reaction. The presented system shows a high catalytic performance (>80% conversion of alcohols to α, β-unsaturated nitriles) without the use of expensive noble metals. The bipy-CTF not only acts as the catalyst support but also provides the active sites for both aerobic oxidation and Knoevenagel condensation reactions. This work highlights a new perspective for the development of highly efficient and robust heterogeneous catalysts applying CTFs for cascade catalysis.
Collapse
|
18
|
Trannoy V, Léaustic A, Gadan S, Guillot R, Allain C, Clavier G, Mazerat S, Geffroy B, Yu P. A highly efficient solution and solid state ESIPT fluorophore and its OLED application. NEW J CHEM 2021. [DOI: 10.1039/d0nj05600f] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Readily accessible and functionalized ESIPT dyes with high fluorescence quantum yield in solution, including water, and in crystalline state are presented.
Collapse
Affiliation(s)
- Virgile Trannoy
- Université Paris-Saclay
- CNRS
- Institut de Chimie Moléculaire et des Matériaux d’Orsay
- Orsay
- France
| | - Anne Léaustic
- Université Paris-Saclay
- CNRS
- Institut de Chimie Moléculaire et des Matériaux d’Orsay
- Orsay
- France
| | - Sophie Gadan
- Université Paris-Saclay
- CNRS
- Institut de Chimie Moléculaire et des Matériaux d’Orsay
- Orsay
- France
| | - Régis Guillot
- Université Paris-Saclay
- CNRS
- Institut de Chimie Moléculaire et des Matériaux d’Orsay
- Orsay
- France
| | - Clémence Allain
- Université Paris-Saclay
- ENS Paris-Saclay
- CNRS
- PPSM
- 91190 Gif-sur-Yvette
| | - Gilles Clavier
- Université Paris-Saclay
- ENS Paris-Saclay
- CNRS
- PPSM
- 91190 Gif-sur-Yvette
| | - Sandra Mazerat
- Université Paris-Saclay
- CNRS
- Institut de Chimie Moléculaire et des Matériaux d’Orsay
- Orsay
- France
| | | | - Pei Yu
- Université Paris-Saclay
- CNRS
- Institut de Chimie Moléculaire et des Matériaux d’Orsay
- Orsay
- France
| |
Collapse
|
19
|
Giordano M, Volpi G, Bonomo M, Mariani P, Garino C, Viscardi G. Methoxy-substituted copper complexes as possible redox mediators in dye-sensitized solar cells. NEW J CHEM 2021. [DOI: 10.1039/d1nj02577e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Methoxy-substituted aromatic diimines and corresponding homoleptic copper(i) and copper(ii) complexes as possible redox mediators in dye-sensitized solar cells.
Collapse
Affiliation(s)
- Marco Giordano
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Turin, Italy
| | - Giorgio Volpi
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Turin, Italy
| | - Matteo Bonomo
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Turin, Italy
| | - Paolo Mariani
- CHOSE and Department of Electronic Engineering, University of Rome “Tor Vergata”, Rome, Italy
| | - Claudio Garino
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Turin, Italy
| | - Guido Viscardi
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Turin, Italy
| |
Collapse
|
20
|
Xiong B, Wang T, Sun H, Li Y, Kramer S, Cheng GJ, Lian Z. Nickel-Catalyzed Cross-Electrophile Coupling Reactions for the Synthesis of gem-Difluorovinyl Arenes. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03993] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Baojian Xiong
- Department of Dermatology, State Key Laboratory of Bio-therapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ting Wang
- Warshel Institute for Computational Biology, Shenzhen Key Laboratory of Steroid Drug Development, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
| | - Haotian Sun
- Department of Dermatology, State Key Laboratory of Bio-therapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Yue Li
- Department of Dermatology, State Key Laboratory of Bio-therapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Søren Kramer
- Department of Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
| | - Gui-Juan Cheng
- Warshel Institute for Computational Biology, Shenzhen Key Laboratory of Steroid Drug Development, School of Life and Health Sciences, The Chinese University of Hong Kong (Shenzhen), Shenzhen 518172, China
| | - Zhong Lian
- Department of Dermatology, State Key Laboratory of Bio-therapy and Cancer Center, West China Hospital and West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| |
Collapse
|
21
|
Santoro A, Holub J, Fik‐Jaskółka MA, Vantomme G, Lehn J. Dynamic Helicates Self‐Assembly from Homo‐ and Heterotopic Dynamic Covalent Ligand Strands. Chemistry 2020; 26:15664-15671. [DOI: 10.1002/chem.202003496] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/17/2020] [Indexed: 01/08/2023]
Affiliation(s)
- Antonio Santoro
- Laboratoire de Chimie Supramoléculaire, ISIS Université de Strasbourg 8 Allée Gaspard Monge 67000 Strasbourg France
- Present address: Department of Chemical, Biological, Pharmaceutical and Environmental Sciences University of Messina Viale F. Stagno d'Alcontres 31 98166 Messina Italy
| | - Jan Holub
- Laboratoire de Chimie Supramoléculaire, ISIS Université de Strasbourg 8 Allée Gaspard Monge 67000 Strasbourg France
- Present address: Institute of Chemical Research of Catalonia (ICIQ) Avinguda Països Catalans 16 43007 Tarragona Spain
| | - Marta A. Fik‐Jaskółka
- Laboratoire de Chimie Supramoléculaire, ISIS Université de Strasbourg 8 Allée Gaspard Monge 67000 Strasbourg France
- Present address: Faculty of Chemistry Adam Mickiewicz University Uniwersytetu Poznańskiego 8 61-614 Poznań Poland
- Present address: Centre for Advanced Technology Adam Mickiewicz University Uniwersytetu Poznańskiego 10 61-614 Poznań Poland
| | - Ghislaine Vantomme
- Laboratoire de Chimie Supramoléculaire, ISIS Université de Strasbourg 8 Allée Gaspard Monge 67000 Strasbourg France
- Present address: Institute for Complex Molecular Systems Laboratory of Macromolecular and Organic Chemistry Eindhoven University of Technology P.O. Box 513, 5600 MB Eindhoven The Netherlands
| | - Jean‐Marie Lehn
- Laboratoire de Chimie Supramoléculaire, ISIS Université de Strasbourg 8 Allée Gaspard Monge 67000 Strasbourg France
| |
Collapse
|
22
|
Ucar S, Dastan A. One‐pot
homo‐ and
cross‐coupling
of diazanaphthalenes via
C‐H
substitution: Synthesis of Bis‐ and
Tris‐diazanaphthalenes. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.4111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sefa Ucar
- Institution, Department of Chemistry, Faculty of Sciences Atatürk University Erzurum Turkey
| | - Arif Dastan
- Institution, Department of Chemistry, Faculty of Sciences Atatürk University Erzurum Turkey
| |
Collapse
|
23
|
Kang K, Huang L, Weix DJ. Sulfonate Versus Sulfonate: Nickel and Palladium Multimetallic Cross-Electrophile Coupling of Aryl Triflates with Aryl Tosylates. J Am Chem Soc 2020; 142:10634-10640. [PMID: 32486635 PMCID: PMC7373434 DOI: 10.1021/jacs.0c04670] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
While phenols are frequent and convenient aryl sources in cross-coupling, typically as sulfonate esters, the direct cross-Ullmann coupling of two different sulfonate esters is unknown. We report here a general solution to this challenge catalyzed by a combination of Ni and Pd with Zn reductant and LiBr as an additive. The reaction has broad scope, as demonstrated in 33 examples (65% ± 11% average yield). Mechanistic studies show that Pd strongly prefers the aryl triflate, the Ni catalyst has a small preference for the aryl tosylate, aryl transfer between catalysts is mediated by Zn, and Pd improves yields by consuming arylzinc intermediates.
Collapse
Affiliation(s)
- Kai Kang
- University of Wisconsin-Madison, Madison, WI 53706, USA
| | | | | |
Collapse
|
24
|
Waters GD, Carrick JD. Convergent access to bis-1,2,4-triazinyl-2,2'-bipyridines (BTBPs) and 2,2'-bipyridines via a Pd-catalyzed Ullman-type reaction. RSC Adv 2020; 10:10807-10815. [PMID: 35492897 PMCID: PMC9050362 DOI: 10.1039/d0ra00673d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 03/02/2020] [Indexed: 11/21/2022] Open
Abstract
Multidentate, soft-Lewis basic, complexant scaffolds have displayed significant potential in the discrete speciation of the minor actinides from the neutron-absorbing lanthanides resident in spent nuclear fuel. Efforts to devise convergent synthetic strategies to targets of interest to improve liquid-liquid separation outcomes continue, but significant challenges to improve solubility in process-relevant diluents to effectively define meaningful structure-activity relationships remain. In the current work, a synthetic method to achieve the challenging 2,2'-bipyridine bond of the bis-1,2,4-triazinyl-2,2'-bipyridine (BTBP) complexant class leveraging a Pd-catalyzed Ullman-type coupling is reported. This convergent strategy improves upon earlier work focused on linear synthetic access to the BTBP complexant moiety. Method optimization, relevant substrate scope and application, as well as a preliminary mechanistic interrogation are reported herein.
Collapse
Affiliation(s)
- Gabrielle D Waters
- Department of Chemistry, Tennessee Technological University Cookeville TN 38505-0001 USA
| | - Jesse D Carrick
- Department of Chemistry, Tennessee Technological University Cookeville TN 38505-0001 USA
| |
Collapse
|
25
|
Huang L, Ackerman LKG, Kang K, Parsons AM, Weix DJ. LiCl-Accelerated Multimetallic Cross-Coupling of Aryl Chlorides with Aryl Triflates. J Am Chem Soc 2019; 141:10978-10983. [PMID: 31257881 PMCID: PMC6685420 DOI: 10.1021/jacs.9b05461] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Indexed: 12/12/2022]
Abstract
While the synthesis of biaryls has advanced rapidly in the past decades, cross-Ullman couplings of aryl chlorides, the most abundant aryl electrophiles, have remained elusive. Reported here is the first general cross-Ullman coupling of aryl chlorides with aryl triflates. The selectivity challenge associated with coupling an inert electrophile with a reactive one is overcome using a multimetallic strategy with the appropriate choice of additive. Studies demonstrate that LiCl is essential for effective cross-coupling by accelerating the reduction of Ni(II) to Ni(0) and counteracting autoinhibition of reduction at Zn(0) by Zn(II) salts. The modified conditions tolerate a variety of functional groups on either coupling partner (42 examples), and examples include a three-step synthesis of flurbiprofen.
Collapse
Affiliation(s)
- Liangbin Huang
- University
of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| | | | - Kai Kang
- University
of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| | | | - Daniel J. Weix
- University
of Wisconsin−Madison, Madison, Wisconsin 53706, United States
| |
Collapse
|
26
|
Liu Y, Zhang D, Xiao S, Qi Y, Liu S. Copper‐Catalyzed Homocoupling of Alkyl Halides in the Presence of Samarium. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900254] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yongjun Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Dianming Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Shuhuan Xiao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Yan Qi
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Shufeng Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| |
Collapse
|
27
|
|
28
|
Gunasekar GH, Jung KD, Yoon S. Hydrogenation of CO2 to Formate using a Simple, Recyclable, and Efficient Heterogeneous Catalyst. Inorg Chem 2019; 58:3717-3723. [DOI: 10.1021/acs.inorgchem.8b03336] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gunniya Hariyanandam Gunasekar
- Department of Applied Chemistry, Kookmin University, 861-1 Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Republic of Korea
- Clean Energy Research Centre, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Republic of Korea
| | - Kwang-Deog Jung
- Clean Energy Research Centre, Korea Institute of Science and Technology, P.O. Box 131, Cheongryang, Republic of Korea
| | - Sungho Yoon
- Department of Applied Chemistry, Kookmin University, 861-1 Jeongneung-dong, Seongbuk-gu, Seoul 136-702, Republic of Korea
| |
Collapse
|
29
|
Tahir N, Muniz-Miranda F, Everaert J, Tack P, Heugebaert T, Leus K, Vincze L, Stevens CV, Van Speybroeck V, Van Der Voort P. Immobilization of Ir(I) complex on covalent triazine frameworks for C H borylation reactions: A combined experimental and computational study. J Catal 2019. [DOI: 10.1016/j.jcat.2019.01.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
|
30
|
Mei X, Lan M, Cui G, Zhang H, Zhu W. Caerulomycins from Actinoalloteichus cyanogriseus WH1-2216-6: isolation, identification and cytotoxicity. Org Chem Front 2019. [DOI: 10.1039/c9qo00685k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
SAR study of 42 caerulomycins from A. cyanogriseus revealed that 6-aldoxime and 4-O-glycosidation are respectively essential for their activity and selectivity.
Collapse
Affiliation(s)
- Xiangui Mei
- Key Laboratory of Marine Drugs
- Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- 5# Yushan Road
| | - Mengmeng Lan
- Key Laboratory of Marine Drugs
- Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- 5# Yushan Road
| | - Guodong Cui
- Key Laboratory of Marine Drugs
- Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- 5# Yushan Road
| | - Hongwei Zhang
- Key Laboratory of Marine Drugs
- Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- 5# Yushan Road
| | - Weiming Zhu
- Key Laboratory of Marine Drugs
- Ministry of Education of China
- School of Medicine and Pharmacy
- Ocean University of China
- 5# Yushan Road
| |
Collapse
|
31
|
Turnbull WL, Luyt LG. Amino-Substituted 2,2'-Bipyridine Ligands as Fluorescent Indicators for Zn II and Applications for Fluorescence Imaging of Prostate Cells. Chemistry 2018; 24:14539-14546. [PMID: 30051526 DOI: 10.1002/chem.201803051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/21/2018] [Indexed: 12/26/2022]
Abstract
ZnII concentrations in malignant prostate tissues are much lower than in benign or healthy, suggesting that ZnII levels are a potential biomarker for prostate cancer (PCa). Five 2,2'-bipyridine ligands were synthesized containing amino substituents with varying electron-donating ability for investigation as fluorescent ZnII indicators. The excited state characteristics of the ligands were explored by UV/Vis and fluorescence spectroscopy. 3,3'-Diamino-2,2'-bipyridine (1) was previously shown to be weakly fluorescent as a result of π→π* transitions. The other four ligands have properties consistent with an n→π* intraligand charge transfer excited state. Strongly donating amino and aminophenyl (2 and 4) substituents gave low quantum yields, while weaker donating benzimidazole substituents (6 and 7) gave high quantum yields. Absorption and fluorescence wavelengths underwent bathochromic shifts upon ZnII binding in a majority of cases. Quantum yields drastically increased upon ZnII binding for 1 and 2, but decreased for 4, 6, and 7. Compounds 6 and 7 were incubated with PC-3, DU 145 and BPH-1 cells to determine their ZnII sensing abilities in a biological system. Weak fluorescence was observed in BPH-1 cells and subsequent incubation with ZnII caused fluorescence intensity to increase. No fluorescence was observed in PCa cell lines. Further investigation of these ligands may allow for quantitative determination of ZnII concentrations in ex vivo tissue samples.
Collapse
Affiliation(s)
- William L Turnbull
- Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| | - Leonard G Luyt
- Department of Chemistry, University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada.,London Regional Cancer Program, Lawson Health Research Institute, 790 Commissioners Road East, London, Ontario, N6A 4 L6, Canada.,Departments of Oncology and Medical Imaging, University of Western Ontario, 1151 Richmond Street, London, Ontario, N6A 5B7, Canada
| |
Collapse
|
32
|
Lin T, Mi J, Song L, Gan J, Luo P, Mao J, Walsh PJ. Nickel-Catalyzed Desymmetrizing Cross-Electrophile Coupling of Cyclic Meso-Anhydrides. Org Lett 2018; 20:1191-1194. [DOI: 10.1021/acs.orglett.8b00114] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Tingzhi Lin
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jianjun Mi
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Lichao Song
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jiamin Gan
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Pan Luo
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Jianyou Mao
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
| | - Patrick J. Walsh
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211800, P. R. China
- Roy
and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, United States
| |
Collapse
|
33
|
Stephens DE, Lakey-Beitia J, Burch JE, Arman HD, Larionov OV. Mechanistic insights into the potassium tert-butoxide-mediated synthesis of N-heterobiaryls. Chem Commun (Camb) 2018; 52:9945-8. [PMID: 27440397 DOI: 10.1039/c6cc04816a] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report herein that symmetrical and non-symmetrical N-heterobiaryls are produced by a potassium tert-butoxide-mediated dimerization of heterocyclic N-oxides. The reaction is scalable and transition metal-free, and can be carried out under thermal and microwave conditions. Preliminary mechanistic studies point to the involvement of radical anionic intermediates arising from the N-oxide substrates and potassium tert-butoxide.
Collapse
Affiliation(s)
- David E Stephens
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249, USA.
| | - Johant Lakey-Beitia
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249, USA. and Centre for Biodiversity and Drug Discovery, Institute for Scientific Research and High Technology Services (INDICASAT-AIP), City of Knowledge, Panama City, Republic of Panama and Department of Biotechnology, Acharya Nagarjuna University, Nagarjuna Nagar, India
| | - Jessica E Burch
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249, USA.
| | - Hadi D Arman
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249, USA.
| | - Oleg V Larionov
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX 78249, USA.
| |
Collapse
|
34
|
Roy BC, Debnath S, Chakrabarti K, Paul B, Maji M, Kundu S. ortho-Amino group functionalized 2,2′-bipyridine based Ru(ii) complex catalysed alkylation of secondary alcohols, nitriles and amines using alcohols. Org Chem Front 2018. [DOI: 10.1039/c7qo01061c] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic activity of Ru(ii) complexes in sustainable C–C and C–N bond formation is enhanced by using a functionalized 2,2′-bipyridine ligand.
Collapse
Affiliation(s)
| | | | | | - Bhaskar Paul
- Department of Chemistry
- IIT Kanpur
- Kanpur 208016
- India
| | - Milan Maji
- Department of Chemistry
- IIT Kanpur
- Kanpur 208016
- India
| | - Sabuj Kundu
- Department of Chemistry
- IIT Kanpur
- Kanpur 208016
- India
| |
Collapse
|
35
|
Downs RP, Chin AL, Dean KM, Carrick JD. Synthesis of Functionalized Hemi
-1,2,4-triazinyl-[2,2′]-bipyridines via
Telescoped Condensation of [2,2′]-bipyridinyl-6-carbonitrile. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2908] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ryan P. Downs
- Department of Chemistry; Tennessee Technological University; 55 University Drive Cookeville Tennessee 38505-0001 USA
| | - Ai Lin Chin
- Department of Chemistry; Tennessee Technological University; 55 University Drive Cookeville Tennessee 38505-0001 USA
| | - Kayla M. Dean
- Department of Chemistry; Tennessee Technological University; 55 University Drive Cookeville Tennessee 38505-0001 USA
| | - Jesse D. Carrick
- Department of Chemistry; Tennessee Technological University; 55 University Drive Cookeville Tennessee 38505-0001 USA
| |
Collapse
|
36
|
Jang HJ, Hopkins SL, Siegler MA, Bonnet S. Frontier orbitals of photosubstitutionally active ruthenium complexes: an experimental study of the spectator ligands' electronic properties influence on photoreactivity. Dalton Trans 2017; 46:9969-9980. [PMID: 28726891 DOI: 10.1039/c7dt01540b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis and characterization of [Ru(tpy)(R2bpy)(L)](X)n complexes (tpy = 2,2':6',2''-terpyridine, R2bpy = 4,4'-dimethyl-2,2'-bipyridine (dmbpy), or 4,4'-bis(trifluoromethyl)-2,2'-bipyridine (tfmbpy), X = Cl- or PF6-, and n = 1 or 2) are described. The dmbpy and tfmbpy bidentate ligands allow for investigating the effects of electron-donating and electron-withdrawing ligands, respectively, on the frontier orbital energetics as well as the photoreactivity of these ruthenium polypyridyl complexes for five prototypical monodentate ligands L = Cl-, H2O, CH3CN, 2-(methylthio)ethanol (Hmte), or pyridine. According to spectroscopic and electrochemical studies, the dmbpy analogues displayed a singlet metal-to-ligand charge transfer (1MLCT) transition at higher energy than the tfmbpy analogues. The shift of the 1MLCT to higher energy results from the lowest unoccupied molecular orbital (LUMO) for the dmbpy analogues being tpy-based, whereas for the tfmbpy analogues orbital inversion occurs resulting in a tfmbpy-based LUMO. The energy level of the highest occupied molecular orbital (HOMO) was considerably affected by the nature of the monodentate ligand. Visible light irradiation of the complexes demonstrated that the tfmbpy analogue increased the rate and quantum yields of photosubstitution reactions, compared to the dmbpy analogue, suggesting that the electron-withdrawing substituents allowed better thermal accessibility of the triplet metal-centered (3MC) state from the photochemically generated triplet metal-to-ligand charge transfer (3MLCT) excited state. A correlation between the photolability of the monodentate ligands and the electrochemical reversibility of the metal-based oxidation is also reported.
Collapse
Affiliation(s)
- Hyo Jin Jang
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA Leiden, The Netherlands.
| | | | | | | |
Collapse
|
37
|
Primer DN, Molander GA. Enabling the Cross-Coupling of Tertiary Organoboron Nucleophiles through Radical-Mediated Alkyl Transfer. J Am Chem Soc 2017; 139:9847-9850. [PMID: 28719197 PMCID: PMC5605792 DOI: 10.1021/jacs.7b06288] [Citation(s) in RCA: 182] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The construction of quaternary centers is a common challenge in the synthesis of complex materials and natural products. Current cross-coupling strategies that can be generalized for setting these centers are sparse and, when known, are typically predicated on the use of reactive organometallic reagents. To address this shortcoming a new, photoredox-Ni dual catalytic strategy for the cross-coupling of tertiary organoboron reagents with aryl halides is reported. In addition to details on the cross-coupling scope and limitations, full screening efforts and mechanistic experiments are communicated.
Collapse
Affiliation(s)
- David N. Primer
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| | - Gary A. Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323
| |
Collapse
|
38
|
Xu B, Gartman J, Tambar UK. Copper-catalyzed [1,2]-rearrangements of allylic iodides and aryl α-diazoacetates. Tetrahedron 2017; 73:4150-4159. [PMID: 28966401 PMCID: PMC5614460 DOI: 10.1016/j.tet.2017.01.048] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The [1,2]- and [2,3]-rearrangements of iodonium ylides are synthetically useful reactions for the generation of functionalized α-iodoesters. Allylic iodides are coupled with α-diazoesters in the presence of a copper catalyst and a ligand to generate iodonium ylides, which undergo metal-mediated rearrangements. By fine-tuning the structure of the ligand, we have reversed the regioselectivity of copper-catalyzed reactions of iodonium ylides from [2,3]- to [1,2]-rearrangements with the use of alternate bipyridine ligands. The preference for [1,2]-rearrangements was further improved by using bulky aryl α-diazoester substrates. Several α-iodoesters with a diverse range of functional groups were generated in good yields (up to 88% yield) and high regioselectivities (up to >95:5 regioisomeric ratio). A deuterium-labeled substrate was utilized to gain insight into the mechanism of the reaction.
Collapse
Affiliation(s)
- Bin Xu
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
| | - Jackson Gartman
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
| | - Uttam K Tambar
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
| |
Collapse
|
39
|
Min J, Xu G, Sun J. Synthesis of Six-Membered Carbo-/Heterocycles via Cascade Reaction of Alkynes and Diazo Compounds. J Org Chem 2017; 82:5492-5498. [DOI: 10.1021/acs.joc.7b00758] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junxiang Min
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Guangyang Xu
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of
Advanced Catalytic Materials and Technology, School of Petrochemical
Engineering, Changzhou University, Changzhou 213164, P. R. China
| |
Collapse
|
40
|
Liu Y, Xiao S, Qi Y, Du F. Reductive Homocoupling of Organohalides Using Nickel(II) Chloride and Samarium Metal. Chem Asian J 2017; 12:673-678. [DOI: 10.1002/asia.201601712] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Revised: 01/24/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Yongjun Liu
- State Key Laboratory Base of Eco-chemical Engineering; Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P. R. China
| | - Shuhuan Xiao
- State Key Laboratory Base of Eco-chemical Engineering; Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P. R. China
| | - Yan Qi
- State Key Laboratory Base of Eco-chemical Engineering; Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P. R. China
| | - Feng Du
- State Key Laboratory Base of Eco-chemical Engineering; Key Laboratory of Sensor Analysis of Tumor Marker; Ministry of Education; College of Chemistry and Molecular Engineering; Qingdao University of Science and Technology; Qingdao 266042 P. R. China
| |
Collapse
|
41
|
Li X, Van Zeeland R, Maligal-Ganesh RV, Pei Y, Power G, Stanley L, Huang W. Impact of Linker Engineering on the Catalytic Activity of Metal–Organic Frameworks Containing Pd(II)–Bipyridine Complexes. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01753] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Xinle Li
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames
Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Ryan Van Zeeland
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Raghu V. Maligal-Ganesh
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames
Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Yuchen Pei
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames
Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| | - Gregory Power
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Levi Stanley
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Wenyu Huang
- Department
of Chemistry, Iowa State University, Ames, Iowa 50011, United States
- Ames
Laboratory, U.S. Department of Energy, Ames, Iowa 50011, United States
| |
Collapse
|
42
|
Triller S, Dittmann T, Bendig M, Schnelle J, Friedmann T, Heck J. Donor-Acceptor Substituted 2-Phenylpyridines by Means of Reductive C,C-Cross Coupling Reaction. ChemistrySelect 2016. [DOI: 10.1002/slct.201600707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sebastian Triller
- Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 D-20146 Hamburg
| | - Tim Dittmann
- Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 D-20146 Hamburg
| | - Mareike Bendig
- Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 D-20146 Hamburg
| | - Jan Schnelle
- Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 D-20146 Hamburg
| | - Tom Friedmann
- Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 D-20146 Hamburg
| | - Jürgen Heck
- Department of Chemistry; University of Hamburg; Martin-Luther-King-Platz 6 D-20146 Hamburg
| |
Collapse
|
43
|
Nickel-Catalyzed Reductive Couplings. Top Curr Chem (Cham) 2016; 374:43. [DOI: 10.1007/s41061-016-0042-2] [Citation(s) in RCA: 156] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 05/30/2016] [Indexed: 12/14/2022]
|
44
|
Lewis JEM, Bordoli RJ, Denis M, Fletcher CJ, Galli M, Neal EA, Rochette EM, Goldup SM. High yielding synthesis of 2,2'-bipyridine macrocycles, versatile intermediates in the synthesis of rotaxanes. Chem Sci 2016; 7:3154-3161. [PMID: 29997807 PMCID: PMC6005271 DOI: 10.1039/c6sc00011h] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 01/26/2016] [Indexed: 12/13/2022] Open
Abstract
We present an operationally simple approach to 2,2'-bipyridine macrocycles. Our method uses simple starting materials to produce these previously hard to access rotaxane precursors in remarkable yields (typically >65%) across a range of scales (0.1-5 mmol). All of the macrocycles reported are efficiently converted (>90%) to rotaxanes under AT-CuAAC conditions. With the requisite macrocycles finally available in sufficient quantities, we further demonstrate their long term utility through the first gram-scale synthesis of an AT-CuAAC [2]rotaxane and extend this powerful methodology to produce novel Sauvage-type molecular shuttles.
Collapse
Affiliation(s)
- J E M Lewis
- Chemistry , University of Southampton , Highfield , Southampton , SO17 1BJ , UK .
| | - R J Bordoli
- School of Biological and Chemical Sciences , Queen Mary University of London , Mile End Road , London , E1 4NS , UK
| | - M Denis
- Chemistry , University of Southampton , Highfield , Southampton , SO17 1BJ , UK .
| | - C J Fletcher
- Chemistry , University of Southampton , Highfield , Southampton , SO17 1BJ , UK .
| | - M Galli
- Chemistry , University of Southampton , Highfield , Southampton , SO17 1BJ , UK .
| | - E A Neal
- School of Biological and Chemical Sciences , Queen Mary University of London , Mile End Road , London , E1 4NS , UK
| | - E M Rochette
- Chemistry , University of Southampton , Highfield , Southampton , SO17 1BJ , UK .
| | - S M Goldup
- Chemistry , University of Southampton , Highfield , Southampton , SO17 1BJ , UK .
| |
Collapse
|
45
|
Xie WW, Liu Y, Yuan R, Zhao D, Yu TZ, Zhang J, Da CS. Transition Metal-Free Homocoupling of Unactivated Electron-Deficient Azaarenes. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500445] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
46
|
Wang S, Yang DT, Lu J, Shimogawa H, Gong S, Wang X, Mellerup SK, Wakamiya A, Chang YL, Yang C, Lu ZH. In-situ-Bildung von (BN)2-Pyrenen und elektrolumineszierenden Elementen im Festkörper. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507770] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
47
|
Wang S, Yang DT, Lu J, Shimogawa H, Gong S, Wang X, Mellerup SK, Wakamiya A, Chang YL, Yang C, Lu ZH. In Situ Solid-State Generation of (BN)2 -Pyrenes and Electroluminescent Devices. Angew Chem Int Ed Engl 2015; 54:15074-8. [PMID: 26482862 DOI: 10.1002/anie.201507770] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 11/08/2022]
Abstract
New BN-heterocyclic compounds have been found to undergo double arene photoelimination, forming rare yellow fluorescent BN-pyrenes that contain two BN units. Most significant is the discovery that the double arene elimination can also be driven by excitons generated electrically within electroluminescent (EL) devices, enabling the in situ solid-state conversion of BN-heterocycles to BN-pyrenes and the use of BN-pyrenes as emitters for EL devices. The in situ exciton-driven elimination (EDE) phenomenon has also been observed for other BN-heterocycles.
Collapse
Affiliation(s)
- Suning Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry, Beijing Institute of Technology, Beijing 100081 (P.R. China). , .,Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6 (Canada). ,
| | - Deng-Tao Yang
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6 (Canada)
| | - Jiasheng Lu
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6 (Canada)
| | - Hiroyuki Shimogawa
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011 (Japan)
| | - Shaolong Gong
- Department of Materials Sciences and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4 (Canada). .,Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan 430072 (China).
| | - Xiang Wang
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6 (Canada)
| | - Soren K Mellerup
- Department of Chemistry, Queen's University, Kingston, Ontario K7L 3N6 (Canada)
| | - Atsushi Wakamiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011 (Japan)
| | - Yi-Lu Chang
- Department of Materials Sciences and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4 (Canada)
| | - Chuluo Yang
- Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan 430072 (China)
| | - Zheng-Hong Lu
- Department of Materials Sciences and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4 (Canada).
| |
Collapse
|
48
|
Liao LY, Liu KM, Duan XF. Unified Protocol for Cobalt-Catalyzed Oxidative Assembly of Two Aryl Metal Reagents Using Oxygen as an Oxidant. J Org Chem 2015; 80:9856-67. [PMID: 26417886 DOI: 10.1021/acs.joc.5b01787] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The first cobalt-catalyzed oxidative cross-coupling reaction of two aryl metal reagents is described. An equivalent amount of two aryl Grignard or lithium reagents, after mediation by an equivalent amount of simple ClTi(OEt)3, was facilely assembled under the catalysis of 1 mol % of CoCl2/10 mol % of DMPU using oxygen. The cross-couplings between various aryl metal reagents, especially between two structurally similar aryl Grignard reagents, proceeded smoothly and selectively and, thus, provided a highly general and efficient method for the construction of biaryl compounds.
Collapse
Affiliation(s)
- Lian-Yan Liao
- College of Chemistry, Beijing Normal University , Beijing 100875, China
| | - Kun-Ming Liu
- College of Chemistry, Beijing Normal University , Beijing 100875, China
| | - Xin-Fang Duan
- College of Chemistry, Beijing Normal University , Beijing 100875, China
| |
Collapse
|
49
|
da Silva JFM, Yepes Perez AF, de Almeida NP. Phosphine-Free Suzuki Cross-Coupling Reaction Using an Efficient and Reusable Pd Catalyst in an Aqueous Medium Under Microwave Irradiation. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1057289] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Andres F. Yepes Perez
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Facultad de Ciencias Físicas Exactas y Naturales, Universidad de Santander (UDES), Bucaramanga, Colombia
| | - Natália P. de Almeida
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| |
Collapse
|
50
|
Convenient and rapid strategies towards 6-(hetero)aryl pyridylmethylamines: first catalytic issues. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.182] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|