1
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Cheng Q, Bhattacharya D, Haring M, Cao H, Mück-Lichtenfeld C, Studer A. Skeletal editing of pyridines through atom-pair swap from CN to CC. Nat Chem 2024; 16:741-748. [PMID: 38238464 PMCID: PMC11087273 DOI: 10.1038/s41557-023-01428-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/15/2023] [Indexed: 05/12/2024]
Abstract
Skeletal editing is a straightforward synthetic strategy for precise substitution or rearrangement of atoms in core ring structures of complex molecules; it enables quick diversification of compounds that is not possible by applying peripheral editing strategies. Previously reported skeletal editing of common arenes mainly relies on carbene- or nitrene-type insertion reactions or rearrangements. Although powerful, efficient and applicable to late-stage heteroarene core structure modification, these strategies cannot be used for skeletal editing of pyridines. Here we report the direct skeletal editing of pyridines through atom-pair swap from CN to CC to generate benzenes and naphthalenes in a modular fashion. Specifically, we use sequential dearomatization, cycloaddition and rearomatizing retrocycloaddition reactions in a one-pot sequence to transform the parent pyridines into benzenes and naphthalenes bearing diversified substituents at specific sites, as defined by the cycloaddition reaction components. Applications to late-stage skeletal diversification of pyridine cores in several drugs are demonstrated.
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Affiliation(s)
- Qiang Cheng
- Organisch-Chemisches Institut, Universität Münster, Münster, Germany
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, P. R. China
| | | | - Malte Haring
- Organisch-Chemisches Institut, Universität Münster, Münster, Germany
| | - Hui Cao
- Organisch-Chemisches Institut, Universität Münster, Münster, Germany
| | | | - Armido Studer
- Organisch-Chemisches Institut, Universität Münster, Münster, Germany.
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2
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Tan H, Yu S, Yuan X, Chen L, Shan C, Shi J, Li Y. Switchable chemoselective aryne reactions between nucleophiles and pericyclic reaction partners using either 3-methoxybenzyne or 3-silylbenzyne. Nat Commun 2024; 15:3665. [PMID: 38693115 PMCID: PMC11063064 DOI: 10.1038/s41467-024-47952-8] [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: 02/08/2024] [Accepted: 04/17/2024] [Indexed: 05/03/2024] Open
Abstract
Arynes are known to serve as highly reactive benzene-based synthons, which have gained numerous successes in preparing functionalized arenes. Due to the superb electrophilic nature of these fleeting species, however, it is challenging to modulate the designated aryne transformation chemoselectively, when substrates possess multiple competing reaction sites. Here, we showcase our effort to manipulate chemoselective control between two major types of aryne transformations using either 3-methoxybenzyne or 3-silylbenzyne, where nucleophilic addition-triggered reactions and non-polar pericyclic reactions could be differentiated. This orthogonal chemoselective protocol is found to be applicable between various nucleophiles, i.e., imidazole, N-tosylated/N-alkyl aniline, phenol, and alcohol, and an array of pericyclic reaction partners, i.e., furan, cyclopentadiene, pyrrole, cycloheptatrienone, and cyclohexene. Beyond arylation reactions, C-N bond insertion, Truce-Smiles rearrangement, and nucleophilic annulation are appropriate reaction modes as well. Moreover, this chemoselective protocol can find potential synthetic application.
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Affiliation(s)
- Hongcheng Tan
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, PR China
| | - Shuxin Yu
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, PR China
| | - Xiaoling Yuan
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, PR China
| | - Liyuan Chen
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, PR China
| | - Chunhui Shan
- College of Chemistry, Chongqing Normal University, Chongqing, 401331, PR China
| | - Jiarong Shi
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, PR China
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, 400030, PR China.
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3
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Wang B, Ren M, Iqbal N, Mu X, Yang B. Environmentally Friendly Synthesis of Highly Substituted Phenols Using Enallenoates and Grignard Reagents. Org Lett 2024. [PMID: 38625171 DOI: 10.1021/acs.orglett.4c00759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
We developed an efficient and environmentally friendly methodology for selectively synthesizing highly substituted phenols using readily available enallenoates and Grignard reagents. This method consistently yields good to excellent results across over 60 examples, demonstrating the substrate scope and the exploration of phenol product derivatization, further extending the method's utility.
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Affiliation(s)
- Bolin Wang
- School of Chemistry, Xi'an Jiaotong University, 710049, Xi'an, People's Republic of China
| | - Mingzhe Ren
- School of Chemistry, Xi'an Jiaotong University, 710049, Xi'an, People's Republic of China
| | - Nasir Iqbal
- School of Chemistry, Xi'an Jiaotong University, 710049, Xi'an, People's Republic of China
| | - Xin Mu
- School of Chemistry, Xi'an Jiaotong University, 710049, Xi'an, People's Republic of China
| | - Bin Yang
- School of Chemistry, Xi'an Jiaotong University, 710049, Xi'an, People's Republic of China
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4
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Catenazzi M, Nitti A, Boiocchi M, Bianchi G, Po R, Pasini D. Supramolecular Weaving by Halogen-Bonding in Functionality-Rich Hexasubstituted Aromatic Synthons. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1678. [PMID: 36837309 PMCID: PMC9967865 DOI: 10.3390/ma16041678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 02/08/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Hexasubstituted benzenes are interesting platforms for the generation of functional materials, whose applications span from supramolecular recognition to organic electronics. Their synthesis is difficult to achieve by controlling multiple substitution steps of all hydrogen atoms on the aromatic benzene skeleton, so, often, cycloaddition reactions from disubsituted alkynes are used. In this work, we report a novel, straightforward route to C3-symmetrical hexasubstituted aromatic synthons with a diverse and rich pattern of functionalities, and we report about their packing mode in the crystals, in which, unprecedentedly, directional, strong halogen bonding interactions are capable of forming bidimensional supramolecular weaving.
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Affiliation(s)
- Matteo Catenazzi
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Massimo Boiocchi
- Centro Grandi Strumenti, University of Pavia, Via Bassi 21, 27100 Pavia, Italy
| | - Gabriele Bianchi
- New Energies, Renewable Energies and Material Science Research Center, Eni SpA, Via Fauser 4, 28100 Novara, Italy
| | - Riccardo Po
- New Energies, Renewable Energies and Material Science Research Center, Eni SpA, Via Fauser 4, 28100 Novara, Italy
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy
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5
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Chen Z, Tan M, Shan C, Yuan X, Chen L, Shi J, Lan Y, Li Y. Aryne 1,4‐Disubstitution and Remote Diastereoselective 1,2,4‐Trisubstitution via a Nucleophilic Annulation‐[5,5]‐Sigmatropic Rearrangement Process. Angew Chem Int Ed Engl 2022; 61:e202212160. [DOI: 10.1002/anie.202212160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Zhonghong Chen
- College of Chemistry Jilin University Changchun 130012 P. R. China
- School of Chemistry and Chemical Engineering Chongqing University 174 Shazheng St. Chongqing 400030 P. R. China
| | - Min Tan
- School of Chemistry and Chemical Engineering Chongqing University 174 Shazheng St. Chongqing 400030 P. R. China
| | - Chunhui Shan
- School of Chemistry and Chemical Engineering Chongqing University 174 Shazheng St. Chongqing 400030 P. R. China
- College of Chemistry Chongqing Normal University Chongqing 401331 P. R. China
| | - Xiaoling Yuan
- School of Chemistry and Chemical Engineering Chongqing University 174 Shazheng St. Chongqing 400030 P. R. China
| | - Liyuan Chen
- School of Chemistry and Chemical Engineering Chongqing University 174 Shazheng St. Chongqing 400030 P. R. China
| | - Jiarong Shi
- School of Chemistry and Chemical Engineering Chongqing University 174 Shazheng St. Chongqing 400030 P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering Chongqing University 174 Shazheng St. Chongqing 400030 P. R. China
- Green Catalysis Center and College of Chemistry Zhengzhou University Zhengzhou Henan, 450001 P. R. China
| | - Yang Li
- College of Chemistry Jilin University Changchun 130012 P. R. China
- School of Chemistry and Chemical Engineering Chongqing University 174 Shazheng St. Chongqing 400030 P. R. China
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6
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Xiong W, Shi Q, Liu WH. Simple and Practical Conversion of Benzoic Acids to Phenols at Room Temperature. J Am Chem Soc 2022; 144:15894-15902. [PMID: 35997485 DOI: 10.1021/jacs.2c07529] [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
Phenols are important organic molecules because they have found widespread applications in many fields. Herein, an efficient and practical approach to prepare phenols from benzoic acids via simple organic reagents at room temperature is reported. This approach is compatible with various functional groups and heterocycles and can be easily scaled up. To demonstrate its synthetic utility, bioactive molecules and unsymmetrical hexaarylbenzenes have been prepared by leveraging this transformation as strategic steps. Mechanistic investigations suggest that the key migration step involves a free carbocation instead of a radical intermediate. Considering the abundance of benzoic acids and the utility of phenols, it is anticipated that this method will find broad applications in organic synthesis.
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Affiliation(s)
- Wenzhang Xiong
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Qiu Shi
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
| | - Wenbo H Liu
- School of Chemistry, Sun Yat-sen University, Guangzhou 510006, China
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7
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Chen L, Zhang X, Zhou M, Shen L, Kramer S, Lian Z. Enantioselective Four-Component Arylsulfonylcyanation of Vinylarenes via the Insertion of SO 2 Enabled by SOgen as SO 2 Surrogate. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Lei Chen
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xuemei Zhang
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Mi Zhou
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lin Shen
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Søren Kramer
- Department of Chemistry, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Zhong Lian
- Department of Dermatology, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, Chengdu 610041, China
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8
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Reza AI, Iwai K, Nishiwaki N. Recent Advances in Synthesis of Multiply Arylated/Alkylated Pyridines. CHEM REC 2022; 22:e202200099. [PMID: 35701177 DOI: 10.1002/tcr.202200099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/28/2022] [Indexed: 11/10/2022]
Abstract
Multiply aryl/alkyl-substituted pyridines are some of the untapped synthetic targets because of the challenge in regioselectively introducing less polar aryl/alkyl groups at the desired positions in the pyridine framework. Interestingly, the importance of this family of compounds has increased annually, particularly in biological and materials engineering applications. The syntheses of such pyridines have been extensively reported, but there is a lack of comprehensive review articles. Hence, this review discusses recent advances by grouping reaction patterns that generally deliver tri-, tetra-, and penta-aryl/alkyl pyridines.
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Affiliation(s)
- Annisa Indah Reza
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan
| | - Kento Iwai
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan.,Research Center for Molecular Design, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan
| | - Nagatoshi Nishiwaki
- School of Environmental Science and Engineering, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan.,Research Center for Molecular Design, Kochi University of Technology, Tosayamada, Kami, Kochi 782-8502, Japan
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9
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Park KHK, Frank N, Duarte F, Anderson EA. Collective Synthesis of Illudalane Sesquiterpenes via Cascade Inverse Electron Demand (4 + 2) Cycloadditions of Thiophene S, S-Dioxides. J Am Chem Soc 2022; 144:10017-10024. [PMID: 35609003 PMCID: PMC9185749 DOI: 10.1021/jacs.2c03304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Thiophene S,S-dioxides are underutilized tools for the de novo construction of benzene rings in organic synthesis. We report a collective synthesis of nine illudalane sesquiterpenes using bicyclic thiophene S,S-dioxides as generalized precursors to the indane core of the natural products. Exploiting furans as unusual dienophiles in this inverse electron demand Diels-Alder cascade, this concise and convergent approach enables the synthesis of these targets in as little as five steps. Theoretical studies rationalize the reactivity of thiophene S,S-dioxides with both electron-poor and electron-rich dienophiles and reveal reaction pathways involving either nonpolar pericyclic or bifurcating ambimodal cycloadditions. Overall, this work demonstrates the wider potential of thiophene S,S-dioxides as convenient and flexible precursors to polysubstituted arenes.
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Affiliation(s)
- Kun Ho Kenny Park
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Nils Frank
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Fernanda Duarte
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
| | - Edward A Anderson
- Chemistry Research Laboratory, 12 Mansfield Road, Oxford OX1 3TA, U.K
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10
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Hore S, Singh A, De S, Singh N, Gandon V, Singh RP. Polyarylquinone Synthesis by Relayed Dehydrogenative [2 + 2 + 2] Cycloaddition. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00175] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Soumyadip Hore
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Abhijeet Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shreemoyee De
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Neetu Singh
- Center for Biomedical Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d’Orsay, CNRS UMR 8182, Université Paris Saclay, Orsay Cedex 91405, France
- Laboratoire de Chimie Moléculaire (LCM), CNRS UMR 9168, Ecole Polytechnique, Institut Polytechnique de Paris, Route de Saclay, Palaiseau Cedex 91128, France
| | - Ravi P. Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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11
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Sun Q, Ding N, Zhao C, Zhang Q, Zhang S, Li S, Pang S. Full-nitro-nitroamino cooperative action: Climbing the energy peak of benzenes with enhanced chemical stability. SCIENCE ADVANCES 2022; 8:eabn3176. [PMID: 35319977 PMCID: PMC8942363 DOI: 10.1126/sciadv.abn3176] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 02/03/2022] [Indexed: 05/28/2023]
Abstract
More nitro groups accord benzenes with higher energy but lower chemical stability. Hexanitrobenzene (HNB) with a fully nitrated structure has stood as the energy peak of organic explosives since 1966, but it is very unstable and even decomposes in moist air. To increase the energy limit and strike a balance between energy and chemical stability, we propose an interval full-nitro-nitroamino cooperative strategy to present a new fully nitrated benzene, 1,3,5-trinitro-2,4,6-trinitroaminobenzene (TNTNB), which was synthesized using an acylation-activation-nitration method. TNTNB exhibits a high density (d: 1.995 g cm-3 at 173 K, 1.964 g cm-3 at 298 K) and excellent heat of detonation (Q: 7179 kJ kg-1), which significantly exceed those of HNB (Q: 6993 kJ kg-1) and the state-of-the-art explosive CL-20 (Q: 6534 kJ kg-1); thus, TNTNB represents the new energy peak for organic explosives. Compared to HNB, TNTNB also exhibits enhanced chemical stability in water, acids, and bases.
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Affiliation(s)
- Qi Sun
- School of Materials Science and Engineering, Beijing
Institute of Technology, Beijing 100081, China
| | - Ning Ding
- School of Materials Science and Engineering, Beijing
Institute of Technology, Beijing 100081, China
| | - Chaofeng Zhao
- School of Materials Science and Engineering, Beijing
Institute of Technology, Beijing 100081, China
| | - Qi Zhang
- Institute of Chemical Materials, China Academy of
Engineering Physics (CAEP), Mianyang 621050, China
| | - Shaowen Zhang
- School of Chemistry and Chemical Engineering, Beijing
Institute of Technology, Beijing 100081, China
| | - Shenghua Li
- School of Materials Science and Engineering, Beijing
Institute of Technology, Beijing 100081, China
| | - Siping Pang
- School of Materials Science and Engineering, Beijing
Institute of Technology, Beijing 100081, China
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12
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Cao HJ, Chen M, Sun F, Zhao Y, Lu C, Zhang X, Shi Z, Yan H. Variable Metal Chelation Modes and Activation Sequence in Pd-Catalyzed B–H Poly-arylation of Carboranes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04473] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hou-ji Cao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Meng Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Fangxiang Sun
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Changsheng Lu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Xiaolei Zhang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
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13
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Liu H, He GC, Zhao CY, Zhang XX, Ji DW, Hu YC, Chen QA. Redox-Divergent Construction of (Dihydro)thiophenes with DMSO. Angew Chem Int Ed Engl 2021; 60:24284-24291. [PMID: 34460141 DOI: 10.1002/anie.202109026] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Indexed: 11/10/2022]
Abstract
Thiophene-based rings are one of the most widely used building blocks for the synthesis of sulfur-containing molecules. Inspired by the redox diversity of these features in nature, we demonstrate herein a redox-divergent construction of dihydrothiophenes, thiophenes, and bromothiophenes from the respective readily available allylic alcohols, dimethyl sulfoxide (DMSO), and HBr. The redox-divergent selectivity could be manipulated mainly by controlling the dosage of DMSO and HBr. Mechanistic studies suggest that DMSO simultaneously acts as an oxidant and a sulfur donor. The synthetic potentials of the products as platform molecules were also demonstrated by various derivatizations, including the preparation of bioactive and functional molecules.
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Affiliation(s)
- Heng Liu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gu-Cheng He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chao-Yang Zhao
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiang-Xin Zhang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ding-Wei Ji
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Yan-Cheng Hu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China
| | - Qing-An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, 116023, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
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14
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Redox‐Divergent Construction of (Dihydro)thiophenes with DMSO. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202109026] [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]
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15
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Grau BW, Dill M, Hampel F, Kahnt A, Jux N, Tsogoeva SB. Four‐Step Domino Reaction Enables Fully Controlled Non‐Statistical Synthesis of Hexaarylbenzene with Six Different Aryl Groups**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104437] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Benedikt W. Grau
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
| | - Maximilian Dill
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
| | - Frank Hampel
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
| | - Axel Kahnt
- Leibniz Institute of Surface Engineering (IOM) Permoserstr. 15 04318 Leipzig Germany
| | - Norbert Jux
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
| | - Svetlana B. Tsogoeva
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
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16
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Grau BW, Dill M, Hampel F, Kahnt A, Jux N, Tsogoeva SB. Four-Step Domino Reaction Enables Fully Controlled Non-Statistical Synthesis of Hexaarylbenzene with Six Different Aryl Groups*. Angew Chem Int Ed Engl 2021; 60:22307-22314. [PMID: 34060211 PMCID: PMC8518863 DOI: 10.1002/anie.202104437] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/30/2021] [Indexed: 12/11/2022]
Abstract
Hexaarylbenzene (HAB) derivatives are versatile aromatic systems playing a significant role as chromophores, liquid crystalline materials, molecular receptors, molecular-scale devices, organic light-emitting diodes and candidates for organic electronics. Statistical synthesis of simple symmetrical HABs is known via cyclotrimerization or Diels-Alder reactions. By contrast, the synthesis of more complex, asymmetrical systems, and without involvement of statistical steps, remains an unsolved problem. Here we present a generally applicable synthetic strategy to access asymmetrical HAB via an atom-economical and high-yielding metal-free four-step domino reaction using nitrostyrenes and α,α-dicyanoolefins as easily available starting materials. Resulting domino product-functionalized triarylbenzene (TAB)-can be used as a key starting compound to furnish asymmetrically substituted hexaarylbenzenes in high overall yield and without involvement of statistical steps. This straightforward domino process represents a distinct approach to create diverse and still unexplored HAB scaffolds, containing six different aromatic rings around central benzene core.
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Affiliation(s)
- Benedikt W. Grau
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Maximilian Dill
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Frank Hampel
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Axel Kahnt
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
| | - Norbert Jux
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Svetlana B. Tsogoeva
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
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17
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Wang J, Wang H, Wang Z, Li L, Qin C, Luan X. Trifunctionalization of Aryl Iodides with Two Distinct Nitrogen and Carbon Electrophiles by Palladium/Norbornene Catalysis. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100467] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jing Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science Northwest University, Xi'an Shaanxi 710127 China
| | - Hui Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science Northwest University, Xi'an Shaanxi 710127 China
| | - Zihan Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science Northwest University, Xi'an Shaanxi 710127 China
| | - Linqiang Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science Northwest University, Xi'an Shaanxi 710127 China
| | - Cheng Qin
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science Northwest University, Xi'an Shaanxi 710127 China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science Northwest University, Xi'an Shaanxi 710127 China
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18
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Messina C, Ottenwaelder X, Forgione P. Programmed Synthesis of Tetra-Aryl Thiophenes with Stepwise, Ester-Controlled Regioselectivity. Org Lett 2021; 23:7348-7352. [PMID: 34506149 DOI: 10.1021/acs.orglett.1c02447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, we report a modular synthetic route to access tetra-arylated thiophene compounds with four different substituents with programmed chemical control provided by an ester activating/directing group. This method enables the functionalization of individual positions of thiophene sequentially via regioselective halogenations and cross-coupling reactions. The reaction sequence described provides tetra-arylated thiophenes in higher yields than previous routes and employs practical reaction protocols, simple catalytic systems, and short reaction times.
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Affiliation(s)
- Cynthia Messina
- Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Xavier Ottenwaelder
- Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada
| | - Pat Forgione
- Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec H4B 1R6, Canada
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19
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Ouyang W, Cai X, Chen X, Wang J, Rao J, Gao Y, Huo Y, Chen Q, Li X. Sequential C-H activation enabled expedient delivery of polyfunctional arenes. Chem Commun (Camb) 2021; 57:8075-8078. [PMID: 34296709 DOI: 10.1039/d1cc03243g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Modular construction of polyfunctional arenes from abundant feedstocks stands as an unremitting pursue in synthetic chemistry, accelerating the discovery of drugs and materials. Herein, using the multiple C-H activation strategy with versatile imidate esters, the expedient delivery of molecular libraries of densely functionalized sulfur-containing arenes was achieved, which enabled the concise construction of biologically active molecules, such as Bipenamol.
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Affiliation(s)
- Wensen Ouyang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Xiaoqing Cai
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Xiaojian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jie Wang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Jianhang Rao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Yang Gao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
| | - Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China.
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20
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Shi J, Li L, Shan C, Chen Z, Dai L, Tan M, Lan Y, Li Y. Benzyne 1,2,4-Trisubstitution and Dearomative 1,2,4-Trifunctionalization. J Am Chem Soc 2021; 143:10530-10536. [PMID: 34236186 DOI: 10.1021/jacs.1c04389] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Both 1,2,4-trisubstitution and dearomative 1,2,4-trifunctionalization of benzyne have been accomplished from sulfoxides bearing a penta-2,4-dien-1-yl moiety. These cascade transformations proceed through a benzyne insertion into the S═O bond and an uncommon regiospecific anionic [4,5]-sigmatropic rearrangement, furnishing a C-O, C-S, and C-C bond on the C1-, C2-, and C4-position of a benzene ring, respectively. This study showcases new cascade benzyne reaction modes involving both distal C-H bond functionalization and dearomatization.
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Affiliation(s)
- Jiarong Shi
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Lianggui Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Chunhui Shan
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030.,College of Chemistry, Chongqing Normal University, Chongqing, P. R. China 401331
| | - Zhonghong Chen
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Liang Dai
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Min Tan
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Yu Lan
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030.,Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou, Henan, P. R. China 450001
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030.,College of Chemistry, Jilin University, Changchun, P. R. China 130012
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21
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Lehr M, Paschelke T, Bendt V, Petersen A, Pietsch L, Harders P, McConnell AJ. Copper‐Free One‐Pot Sonogashira‐Type Coupling for the Efficient Preparation of Symmetric Diarylalkyne Ligands for Metal‐Organic Cages**. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100275] [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)
- Marc Lehr
- Otto Diels Institute of Organic Chemistry Christian-Albrechts-Universität zu Kiel Otto-Hahn-Platz 4 Kiel 24098 Germany
| | - Tobias Paschelke
- Otto Diels Institute of Organic Chemistry Christian-Albrechts-Universität zu Kiel Otto-Hahn-Platz 4 Kiel 24098 Germany
| | - Victoria Bendt
- Otto Diels Institute of Organic Chemistry Christian-Albrechts-Universität zu Kiel Otto-Hahn-Platz 4 Kiel 24098 Germany
| | - André Petersen
- Otto Diels Institute of Organic Chemistry Christian-Albrechts-Universität zu Kiel Otto-Hahn-Platz 4 Kiel 24098 Germany
| | - Lorenz Pietsch
- Otto Diels Institute of Organic Chemistry Christian-Albrechts-Universität zu Kiel Otto-Hahn-Platz 4 Kiel 24098 Germany
| | - Patrick Harders
- Otto Diels Institute of Organic Chemistry Christian-Albrechts-Universität zu Kiel Otto-Hahn-Platz 4 Kiel 24098 Germany
| | - Anna J. McConnell
- Otto Diels Institute of Organic Chemistry Christian-Albrechts-Universität zu Kiel Otto-Hahn-Platz 4 Kiel 24098 Germany
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22
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Wang CS, Sun Q, García F, Wang C, Yoshikai N. Robust Cobalt Catalyst for Nitrile/Alkyne [2+2+2] Cycloaddition: Synthesis of Polyarylpyridines and Their Mechanochemical Cyclodehydrogenation to Nitrogen-Containing Polyaromatics*. Angew Chem Int Ed Engl 2021; 60:9627-9634. [PMID: 33559370 DOI: 10.1002/anie.202017220] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Indexed: 12/16/2022]
Abstract
The transition-metal-catalyzed [2+2+2] cycloaddition of nitriles and alkynes is an established synthetic approach to pyridines; however, these cycloadditions often rely on the use of tethered diynes or cyanoalkynes as one of the reactants. Thus, examples of efficient, fully intermolecular catalytic [2+2+2] pyridine synthesis, especially those employing unactivated nitriles and internal alkynes leading to pentasubstituted pyridines, remain scarce. Herein, we report on simple and inexpensive catalytic systems based on cobalt(II) iodide, 1,3-bis(diphenylphosphino)propane, and Zn that promote [2+2+2] cycloaddition of various nitriles and diarylacetylenes for the synthesis of a broad range of polyarylated pyridines. DFT studies support a reaction pathway involving oxidative coupling of two alkynes, insertion of the nitrile into a cobaltacyclopentadiene, and C-N reductive elimination. The resulting tetra- and pentaarylpyridines serve as precursors to hitherto unprecedented nitrogen-containing polycyclic aromatic hydrocarbons via mechanochemically assisted multifold reductive cyclodehydrogenation.
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Affiliation(s)
- Chang-Sheng Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Qiao Sun
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Felipe García
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
| | - Chen Wang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemical Process, Shaoxing University, Shaoxing, 312000, P. R. China
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, 637371, Singapore
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23
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Wang C, Sun Q, García F, Wang C, Yoshikai N. Robust Cobalt Catalyst for Nitrile/Alkyne [2+2+2] Cycloaddition: Synthesis of Polyarylpyridines and Their Mechanochemical Cyclodehydrogenation to Nitrogen‐Containing Polyaromatics**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chang‐Sheng Wang
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Qiao Sun
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Felipe García
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Chen Wang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemical Process Shaoxing University Shaoxing 312000 P. R. China
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
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24
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Nilova A, Sibbald PA, Valente EJ, González‐Montiel GA, Richardson HC, Brown KS, Cheong PH, Stuart DR. Regioselective Synthesis of 1,2,3,4‐Tetrasubstituted Arenes by Vicinal Functionalization of Arynes Derived from Aryl(Mes)iodonium Salts**. Chemistry 2021; 27:7168-7175. [DOI: 10.1002/chem.202100201] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Indexed: 01/18/2023]
Affiliation(s)
- Aleksandra Nilova
- Department of Chemistry Portland State University Portland Oregon 97201 USA
| | - Paul A. Sibbald
- Department of Chemistry Stetson University DeLand Florida 32723 USA
| | - Edward J. Valente
- Department of Chemistry University of Portland Portland Oregon 97203 USA
| | | | | | - Kevin S. Brown
- Department of Pharmaceutical Sciences and Chemical, Biological, and Environmental Engineering Oregon State University Corvallis Oregon 97331 USA
| | | | - David R. Stuart
- Department of Chemistry Portland State University Portland Oregon 97201 USA
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25
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Devibala P, Balambiga B, Noureen S, Nagarajan S. Hexaarylbenzene based high-performance p-channel molecules for electronic applications. RSC Adv 2021; 11:11672-11701. [PMID: 35423632 PMCID: PMC8696071 DOI: 10.1039/d1ra00217a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/10/2021] [Indexed: 01/20/2023] Open
Abstract
Hexaarylbenzene-based molecules find potential applications in organic electronics due to wider energy gap, high HOMO level, higher photoconductivity, electron-rich nature, and high hole-transporting property. Due to the unique propeller structure, these molecules show low susceptibility towards self-aggregation. This property can be tailored by proper molecular engineering by the incorporation of appropriate groups. Therefore, hexaarylbenzene chromophores are widely used as the materials for high-efficiency light-emitting materials, charge transport materials, host materials, redox materials, photochemical switches, and molecular receptors. This review highlights the diverse structural modification techniques used for the synthesis of symmetrical and unsymmetrical structures. Also, the potential applications of these molecules in organic light-emitting diodes, organic field-effect transistors, organic photovoltaics, organic memory devices, and logic circuits are discussed.
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Affiliation(s)
- Panneerselvam Devibala
- Organic Electronics Division, Department of Chemistry, Central University of Tamil Nadu Thiruvarur 610 005 India
| | - Balu Balambiga
- Organic Electronics Division, Department of Chemistry, Central University of Tamil Nadu Thiruvarur 610 005 India
| | - Shana Noureen
- Organic Electronics Division, Department of Chemistry, Central University of Tamil Nadu Thiruvarur 610 005 India
| | - Samuthira Nagarajan
- Organic Electronics Division, Department of Chemistry, Central University of Tamil Nadu Thiruvarur 610 005 India
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26
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Affiliation(s)
- Jiarong Shi
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Lianggui Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
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27
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Regio-defined syntheses of tetra-brominated dibenzo[g,p]chrysene scaffolds with high solubility. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152758] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Nishiyama Y, Akiyama K, Sakata Y, Hosoya T, Yoshida S. Facile Synthesis of Tetraarylpyrazines by Sequential Cross-coupling Approach. CHEM LETT 2021. [DOI: 10.1246/cl.200715] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yoshitake Nishiyama
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Kei Akiyama
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Yuki Sakata
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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29
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Cardoza S, Shrivash MK, Das P, Tandon V. Strategic Advances in Sequential C-Arylations of Heteroarenes. J Org Chem 2020; 86:1330-1356. [PMID: 33356264 DOI: 10.1021/acs.joc.0c02151] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Sequence-specific C-arylation strategies have important applications in medicinal and material research. These strategies allow C-C bond formations in a regioselective manner to synthesize large molecular libraries for studying structure-activity profiles. The past decade has seen the development of single C-C bond forming reactions using various transition-metal catalysts, cryogenic metalation strategies, and metal-free methods. Sequential arylations of heterocycles allow for the formation of multiaryl derivatives and are a preferred choice over de novo synthetic routes. This perspective sheds light on recent strategic advances to develop various sequential synthetic routes for the multiarylation of heteroarenes. This perspective addresses many challenges in optimizing sequential routes with respect to catalysts, reaction parameters, and various strategies adopted to obtain diversely arylated products.
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Affiliation(s)
- Savio Cardoza
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Manoj Kumar Shrivash
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India.,Department of Applied Sciences, Indian Institute of Information Technology, Allahabad 211012, India
| | - Parthasarathi Das
- Department of Chemistry, Indian Institute of Technology (ISM), Dhanbad 826004, India
| | - Vibha Tandon
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
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30
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Asako T, Suzuki S, Tanaka S, Ota E, Yamaguchi J. Synthesis of Decaarylanthracene with Nine Different Substituents. J Org Chem 2020; 85:15437-15448. [PMID: 33201696 DOI: 10.1021/acs.joc.0c02218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A synthesis of decaarylanthracene with nine different substituents has been accomplished by a coupling/ring-transformation strategy. The oxidation of tetraarylthiophenes with four different substituents to the corresponding thiophene S-oxides and a [4 + 2] cycloaddition with a double benzyne precursor afforded a multiply arylated naphthalene derivative. Subsequently, the naphthalene derivative was converted into a naphthalyne, and then a [4 + 2] cycloaddition of another thiophene S-oxide provided decaarylanthracenes with nine different aryl groups.
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Affiliation(s)
- Takashi Asako
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Shin Suzuki
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Shuhei Tanaka
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo 162-0041, Japan
| | - Eisuke Ota
- 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
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31
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Nisa K, Khatri V, Kumar S, Arora S, Ahmad S, Dandia A, Thirumal M, Kashyap HK, Chauhan SMS. Synthesis and Redox Properties of Superbenzene Porphyrin Conjugates. Inorg Chem 2020; 59:16168-16177. [PMID: 33103424 DOI: 10.1021/acs.inorgchem.0c01682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Superbenzene porphyrin conjugates find wide range of applications from nonlinear optical materials to semiconductors. Herein, we report the synthesis and characterization of 5,15-bis(3,5-di-tert-butylphenyl)-10,20-bis(pentaphenylphenyl)phenylporphyrin and its Zinc-metallated complex. Oxidative planarization of 5,15-bis(3,5-di-tert-butylphenyl)-10,20-bis(pentaphenylphenyl)phenylporphyrin and its metallated complex was carried out by using NOBF4 as an oxidizing agent. The formation of superbenzene porphyrin conjugates validates its Scholl type reactions. The laboratory-synthesized porphyrin conjugates were characterized experimentally using spectroscopic techniques such as 1H NMR, 13C NMR, electron spin resonance, and ultraviolet-visible spectroscopy for structural conformation. In addition, density functional theory calculations were carried out to validate the experimental results. The theoretical and experimental results show that the 4-(pentaphenylphenyl)phenyl ligand increases the stability, optical properties, and rate of planarization of synthesized porphyrins. The conjugates exhibited intense and distant electronic communication between two hexabenzocoronene sites, taking advantage of porphyrin as a π-spacer. The π-radical cation has also been found to be an intermediate in oxidative C-C bond formation. NICS calculations support such a conclusion.
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Affiliation(s)
- Kharu Nisa
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Vikas Khatri
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Sharvan Kumar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Smriti Arora
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Sohail Ahmad
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Anshu Dandia
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - M Thirumal
- Department of Chemistry, University of Delhi, New Delhi 110007, India
| | - Hemant K Kashyap
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Shive M S Chauhan
- Department of Chemistry, University of Delhi, New Delhi 110007, India
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32
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Affiliation(s)
- Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University
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33
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Lorenz R, Reger D, Weller R, Jux N, Burzlaff N. Hexa- peri-hexabenzocoronene decorated with an allenylidene ruthenium complex - almost a flyswatter. Dalton Trans 2020; 49:13134-13141. [PMID: 32930692 DOI: 10.1039/d0dt02729d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Carbon-rich ruthenium allenylidene complexes bearing either a hexaarylbenzene (HAB) or a hexa-peri-hexabenzocoronene (HBC) substituent were synthesised. This was achieved via the corresponding propargyl alcohols with HAB and HBC substituents, which were accessible via 3 or 4 step reaction cascades. Reaction of the propargyl alcohols HC[triple bond, length as m-dash]C(OH)Ph(HAB) and HC[triple bond, length as m-dash]C(OH)Ph(HBC) with [RuCl(η5-C5H5)(PPh3)2] yielded the complexes [Ru(η5-C5H5)([double bond, length as m-dash]C[double bond, length as m-dash]C[double bond, length as m-dash]C(HAB)(Ph))(PPh3)2]PF6 and [Ru(η5-C5H5)([double bond, length as m-dash]C[double bond, length as m-dash]C[double bond, length as m-dash]C(HBC)(Ph))(PPh3)2]PF6. The latter of which shows interesting π-π-stacking behaviour in the solid state as well as aggregation in solution.
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Affiliation(s)
- Rebecca Lorenz
- Department Chemistry and Pharmacy, Interdisciplinary Center of Molecular Materials (ICMM), University of Erlangen-Nuernberg, Egerlandstr. 1, 91058 Erlangen, Germany
| | - David Reger
- Department Chemistry and Pharmacy, University of Erlangen-Nuernberg, Nicolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Ruth Weller
- Department Chemistry and Pharmacy, Interdisciplinary Center of Molecular Materials (ICMM), University of Erlangen-Nuernberg, Egerlandstr. 1, 91058 Erlangen, Germany and Fb. 15 - Chemie, Philipps-University Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany
| | - Norbert Jux
- Department Chemistry and Pharmacy, University of Erlangen-Nuernberg, Nicolaus-Fiebiger-Str. 10, 91058 Erlangen, Germany
| | - Nicolai Burzlaff
- Department Chemistry and Pharmacy, Interdisciplinary Center of Molecular Materials (ICMM), University of Erlangen-Nuernberg, Egerlandstr. 1, 91058 Erlangen, Germany
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34
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Zhang X, Beaudry CM. Synthesis of Highly Substituted Phenols and Benzenes with Complete Regiochemical Control. Org Lett 2020; 22:6086-6090. [PMID: 32687369 DOI: 10.1021/acs.orglett.0c02157] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Substituted phenols are requisite molecules for human health, agriculture, and diverse synthetic materials. We report a chemical synthesis of phenols, including penta-substituted phenols, that accommodates programmable substitution at any position. This method uses a one-step conversion of readily available hydroxypyrone and nitroalkene starting materials to give phenols with complete regiochemical control and in high chemical yield. Additionally, the phenols can be converted into highly and even fully substituted benzenes.
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Affiliation(s)
- Xiaojie Zhang
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
| | - Christopher M Beaudry
- Department of Chemistry, Oregon State University, 153 Gilbert Hall, Corvallis, Oregon 97331, United States
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35
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Tanaka S, Asako T, Ota E, Yamaguchi J. Synthesis of a Pentaarylcarbazole: Installation of Different Aryl Groups on a Benzenoid Moiety. CHEM LETT 2020. [DOI: 10.1246/cl.200302] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Shuhei Tanaka
- Department of Applied Chemistry, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
| | - Takashi Asako
- Department of Applied Chemistry, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
| | - Eisuke Ota
- Department of Applied Chemistry, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
| | - Junichiro Yamaguchi
- Department of Applied Chemistry, Waseda University, 3-4-1 Ohkubo, Shinjuku, Tokyo 169-8555, Japan
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36
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Jin H, Fürstner A. Modular Synthesis of Furans with up to Four Different Substituents by a trans-Carboboration Strategy. Angew Chem Int Ed Engl 2020; 59:13618-13622. [PMID: 32374441 PMCID: PMC7496670 DOI: 10.1002/anie.202005560] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Indexed: 01/18/2023]
Abstract
Propargyl alcohols, on treatment with MHMDS (M=Na, K), B2 (pin)2 , an acid chloride and a palladium/copper co-catalyst system, undergo a reaction cascade comprised of trans-diboration, regioselective acylation, cyclization and dehydration to give trisubstituted furylboronic acid pinacol ester derivatives in good yields; subsequent Suzuki coupling allows a fourth substituent of choice to be introduced and hence tetrasubstituted (arylated) furans to be formed. In terms of modularity, the method seems unrivaled, not least because each product can be attained by two orthogonal but convergent ways ("diagonal split"). This asset is illustrated by the "serial" formation of a "library" of all twelve possible furan isomers that result from systematic permutation of four different substituents about the heterocyclic core.
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Affiliation(s)
- Hongming Jin
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany
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37
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Jin H, Fürstner A. Modular Synthesis of Furans with up to Four Different Substituents by a
trans
‐Carboboration Strategy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Hongming Jin
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung 45470 Mülheim/Ruhr Germany
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38
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Varlet T, Neuville L, Masson G. Selective Double C–H Functionalization: A 4-Component Catellani Reaction. Chem 2020. [DOI: 10.1016/j.chempr.2020.07.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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39
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Dillenburger M, Qiu Z, Ju CW, Müller B, Morsbach S, Schollmeyer D, Narita A, Müllen K. From Hexaphenylbenzene to 1,2,3,4,5,6-Hexacyclohexylcyclohexane. J Am Chem Soc 2020; 142:12916-12920. [PMID: 32668154 PMCID: PMC7458423 DOI: 10.1021/jacs.0c04956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Indexed: 12/19/2022]
Abstract
The hydrogenation of hexaphenylbenzene was studied, affording novel partially hydrogenated hexacyclohexylbenzene (HCB) as well as fully hydrogenated 1,2,3,4,5,6-hexacyclohexylcyclohexane (HCC) as an unprecedented "oligocyclohexyl" molecule. The reaction process was analyzed by mass spectrometry with atmospheric pressure chemical ionization and high-performance liquid chromatography. From a crude product mixture, two different crystals with flake- and block-shapes could be grown and analyzed by X-ray crystallography, revealing their structures as HCB and HCC. While a geared arrangement of cyclohexyl substitutes was found in HCB, two isomeric structures were identified in HCC crystal with chair and twist-boat conformations of the central cyclohexane.
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Affiliation(s)
- Marcel Dillenburger
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Zijie Qiu
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Cheng-Wei Ju
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
- College
of Chemistry, Nankai University, Tianjin 300071, China
| | - Beate Müller
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Svenja Morsbach
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Dieter Schollmeyer
- Department
of Chemistry, Johannes Gutenberg-University Duesbergweg 10-14, 55099 Mainz, Germany
| | - Akimitsu Narita
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Klaus Müllen
- Max
Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
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40
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Ota K, Kinjo R. A Neutral and Aromatic Boron‐Rich Inorganic Benzene. Angew Chem Int Ed Engl 2020; 59:6572-6575. [DOI: 10.1002/anie.201915790] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/24/2020] [Indexed: 01/22/2023]
Affiliation(s)
- Kei Ota
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
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41
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Affiliation(s)
- Kei Ota
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
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42
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Wang J, Zhou Y, Xu X, Liu P, Dong G. Entry to 1,2,3,4-Tetrasubstituted Arenes through Addressing the " Meta Constraint" in the Palladium/Norbornene Catalysis. J Am Chem Soc 2020; 142:3050-3059. [PMID: 31973522 PMCID: PMC7081784 DOI: 10.1021/jacs.9b12355] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Arenes with four different contiguous substituents, i.e. 1,2,3,4-tetrasubstituted arenes, are commonly found in bioactive compounds, but they are nontrivial to access via conventional methods. Through addressing the "meta constraint" in the palladium/norbornene (Pd/NBE) cooperative catalysis, which is the difficulty of tolerating a sizable meta substituent in aryl halide substrates, here a modular and regioselective approach is realized for preparing 1,2,3,4-tetrasubstituted arenes. One key is the use of a C2-amide-substituted NBE, and a combined experimental and computational study reveals its role in promoting the NBE insertion and the ortho C-H metalation steps. The scope is broad: a variety of electrophiles and nucleophiles could be introduced to the ortho and ipso positions, respectively, with 1,4-disubstituted aryl halides, leading to diverse unsymmetrical contiguous tetrasubstituted arenes. Application of this approach has been demonstrated in streamlined syntheses of several bioactive compounds.
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Affiliation(s)
- Jianchun Wang
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
| | - Yun Zhou
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
- Department of Applied Chemistry , China Agricultural University , Beijing 100193 , China
| | - Xiaolong Xu
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
- School of Physical Science and Technology , ShanghaiTech University , Shanghai 201210 , China
| | - Peng Liu
- Department of Chemistry , University of Pittsburgh , Pittsburgh , Pennsylvania 15260 , United States
| | - Guangbin Dong
- Department of Chemistry , University of Chicago , Chicago , Illinois 60637 , United States
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43
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Arita M, Yokoyama S, Asahara H, Nishiwaki N. Three Step Synthesis of Fully and Differently Arylated Pyridines. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901663] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Mao Arita
- School of Environmental Science and Engineering; Kochi University of Technology; Tosayamada 782-8502 Kami Kochi Japan
| | - Soichi Yokoyama
- School of Environmental Science and Engineering; Kochi University of Technology; Tosayamada 782-8502 Kami Kochi Japan
- Research Center for Material Science and Engineering; Kochi University of Technology; Tosayamada 782-8502 Kami Kochi Japan
| | - Haruyasu Asahara
- School of Environmental Science and Engineering; Kochi University of Technology; Tosayamada 782-8502 Kami Kochi Japan
- Research Center for Material Science and Engineering; Kochi University of Technology; Tosayamada 782-8502 Kami Kochi Japan
- Graduate School of Pharmaceutical Sciences; Osaka University; Yamadaoka 1-6, Suita 565-0871 Osaka Japan
| | - Nagatoshi Nishiwaki
- School of Environmental Science and Engineering; Kochi University of Technology; Tosayamada 782-8502 Kami Kochi Japan
- Research Center for Material Science and Engineering; Kochi University of Technology; Tosayamada 782-8502 Kami Kochi Japan
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44
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Tejedor D, Delgado-Hernández S, Santamaría-Peláez B, García-Tellado F. Short and modular synthesis of tetraarylsalicylaldehydes. Chem Commun (Camb) 2020; 56:4019-4022. [DOI: 10.1039/d0cc00738b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Each one of the 15 possible different substitution geometries of tetraarylated salicylaldehyde molecules is accessible through a 5-step modular strategy.
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Affiliation(s)
- David Tejedor
- Instituto de Productos Naturales y Agrobiología
- CSIC
- 38206 La Laguna
- Spain
| | - Samuel Delgado-Hernández
- Instituto de Productos Naturales y Agrobiología
- CSIC
- 38206 La Laguna
- Spain
- Doctoral and Postgraduate School
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45
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Cardoza S, Das P, Tandon V. Pd-Catalyzed Sequential Arylation of 7-Azaindoles: Aggregate-Induced Emission of Tetra-Aryl 7-Azaindoles. J Org Chem 2019; 84:14015-14029. [DOI: 10.1021/acs.joc.9b02187] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Savio Cardoza
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
| | - Parthasarathi Das
- Department of Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad, Jharkhand 826004, India
| | - Vibha Tandon
- Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi 110067, India
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46
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Saito H, Yorimitsu H. Ring-expanding and Ring-opening Transformations of Benzofurans and Indoles with Introducing Heteroatoms. CHEM LETT 2019. [DOI: 10.1246/cl.190393] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Hayate Saito
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Hideki Yorimitsu
- Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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47
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Li X, Rao J, Ouyang W, Chen Q, Cai N, Lu YJ, Huo Y. Sequential C–H and C–C Bond Cleavage: Divergent Constructions of Fused N-Heterocycles via Tunable Cascade. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03091] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xianwei Li
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jianhang Rao
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Wensen Ouyang
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Qian Chen
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Ning Cai
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yu-Jing Lu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Yanping Huo
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
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48
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Manassir M, Pakiari AH. An electronic properties investigation to interpret the substituent constants of monosubstituted benzene derivatives. J Mol Graph Model 2019; 92:201-207. [PMID: 31386947 DOI: 10.1016/j.jmgm.2019.07.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 07/30/2019] [Accepted: 07/30/2019] [Indexed: 11/25/2022]
Abstract
In the present work, the π and π∗-electronic nature of substitution constants (σ) of the twenty-two monosubstituted benzene derivatives (MSBDs) are estimated in terms of the para-delocalization index (PDI) and total non-Lewis structure (TNLS), respectively. Since these compounds are aromatic, the other descriptors of aromaticity such as nuclear independent chemical shifts and aromatic stabilization energy have been examined. Because of no considerable variation for the π and π∗-electron delocalization in the ring systems, a very weak correlation has been demonstrated between all aromaticity indices. Also, none of these descriptors has a linear correlation with the values of σ for both electron-donating groups (EDGs) and electron-withdrawing groups (EWGs) in a simultaneous relationship. We now propose the usage of the dipole moments values of molecules, considering their directions, by multiplying the PDI and TNLS values as probes to interpret σ values for benzene and MSBDs since the dipole moment can affect the π and π∗-electron delocalization. It is interesting to note that there is a remarkable linear correlation between our suggested probes, ±μPDI and ±μTNLS, and σp, σm, and σ+/σ- for EDGs and EWGs in simultaneous linear relationships. Also, these probes have a relative relationship with Kirkwood and Westheimer equation. Additionally, the regression coefficient between ±μPDI and ±μTNLS is 0.989.
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Affiliation(s)
- Mohammad Manassir
- Chemistry Department, College of Sciences, Shiraz University, Shiraz, 71454, Iran
| | - Ali H Pakiari
- Chemistry Department, College of Sciences, Shiraz University, Shiraz, 71454, Iran.
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49
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Li TY, Lin YC, Song YH, Lu HF, Chao I, Lin CH. Synthesis and Physical Study of Perylene and Anthracene Polynitrile as Electron Acceptors. Org Lett 2019; 21:5397-5401. [PMID: 31294569 DOI: 10.1021/acs.orglett.9b01454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Attaching electron-withdrawing nitrile groups to π-conjugated systems is an effective approach toward electron acceptors. By combining various cyanation methodologies, perylene and anthracene polynitriles with up to eight nitrile substituents on one aromatic scaffold were synthesized. This strategy produces stable electron acceptors with lowest unoccupied molecular orbital (LUMO) levels comparable to benchmark acceptors. A very stable octanitrile anion was also produced serendipitously. Reactivity patterns of these acceptors were rationalized by density functional theory (DFT) calculation.
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Affiliation(s)
- Ting-Yu Li
- Institute of Chemistry , Academia Sinica , Academia Road, Sec. 2, No. 128 , Taipei , Taiwan , Republic of China
| | - Yi-Chun Lin
- Institute of Chemistry , Academia Sinica , Academia Road, Sec. 2, No. 128 , Taipei , Taiwan , Republic of China
| | - Yu-Huei Song
- Institute of Chemistry , Academia Sinica , Academia Road, Sec. 2, No. 128 , Taipei , Taiwan , Republic of China
| | - Hsiu-Feng Lu
- Institute of Chemistry , Academia Sinica , Academia Road, Sec. 2, No. 128 , Taipei , Taiwan , Republic of China
| | - Ito Chao
- Institute of Chemistry , Academia Sinica , Academia Road, Sec. 2, No. 128 , Taipei , Taiwan , Republic of China
| | - Chih-Hsiu Lin
- Institute of Chemistry , Academia Sinica , Academia Road, Sec. 2, No. 128 , Taipei , Taiwan , Republic of China
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50
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Verlinden S, Woller T, De Proft F, Verniest G, Alonso M. Towards the Design of Optically Active Thiophene S-Oxides using Quantum Chemistry. Chemistry 2019; 25:2840-2851. [PMID: 30600854 DOI: 10.1002/chem.201805726] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Indexed: 01/03/2023]
Abstract
The importance of axially chiral biaryls has risen steeply in the recent decades. This structural motif proved to be successful in catalytic asymmetric synthesis and the configuration of the biaryl axis is decisive for the biological activity. A new approach for the atroposelective synthesis of biaryls would be through a cycloaddition between an enantiopure phenyl-substituted thiophene S-oxide and an alkyne. Importantly, the chiral center of the thiophene S-oxide needs to be stable enough to avoid pyramidal inversion during the cycloaddition. Considering that the racemization of thiophene monoxides has been scarcely investigated so far, we perform a thorough quantum chemical study on the inversion barriers of a large number of chiral thiophene S-oxide derivatives. Our main goal is to identify substitution patterns leading to stable atropisomers at room temperature. Appealingly, the role of stereoelectronic effects and the position of the substituents as well as the importance of aromaticity on the pyramidal inversion barrier are elucidated for the first time.
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Affiliation(s)
- Steven Verlinden
- Research Group of Organic Chemistry (ORGC), Department of Chemistry, Faculty of Science and Bio-Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Brussels, Belgium
| | - Tatiana Woller
- Department of General Chemistry (ALGC), Faculty of Science and Bio-Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Brussels, Belgium
| | - Frank De Proft
- Department of General Chemistry (ALGC), Faculty of Science and Bio-Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Brussels, Belgium
| | - Guido Verniest
- Research Group of Organic Chemistry (ORGC), Department of Chemistry, Faculty of Science and Bio-Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Brussels, Belgium
| | - Mercedes Alonso
- Department of General Chemistry (ALGC), Faculty of Science and Bio-Engineering Sciences, Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050, Brussels, Belgium
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