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Bai Y, Ouyang F, Chen R, Jiang X, Liang Z, Yu W, Yu G, Chen YH, Wei B. Access to Valuable Chalcogen-Containing Biaryl Derivatives via Regioselective 2,2'-Dichalcogenation of 2-Bromobiaryls. Org Lett 2024; 26:6748-6753. [PMID: 39077872 DOI: 10.1021/acs.orglett.4c02456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
The regioselective installation of chalcogen atoms into biaryl scaffolds is an important synthetic task due to the great value of chalcogen-containing biaryl derivatives in many fields. Here we undertake this task by developing a regioselective 2,2'-dichalcogenation of 2-bromobiaryls with common chalcogen sources using an organolanthanum-mediated one-pot, two-step protocol. This strategy features high regioselectivity, readily available substrates, transition-metal-free conditions, and performance superior to those of previous methods, thereby demonstrating the unique advantages of organolanthanum reagents in organic synthesis.
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Affiliation(s)
- Yike Bai
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Feng Ouyang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Rong Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Xihan Jiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Zhuoming Liang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Wenhua Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Guipeng Yu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, People's Republic of China
| | - Yi-Hung Chen
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei, People's Republic of China
| | - Baosheng Wei
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, Hunan, People's Republic of China
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Wang B, Fang Q. π-Extended Octupolar Cyclized Indole Tetramer and Trimer Derivatives with Second- and Third-Order Nonlinear Optical Properties. J Org Chem 2023; 88:5520-5529. [PMID: 37036955 DOI: 10.1021/acs.joc.3c00072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
Several aromatic-fused octupolar tetraindole (TTI) and triindole (TI) derivatives have been synthesized via POCl3-promoted cyclopolymerization of the aromatic-fused oxindoles. As a result, the terminal phenyls of TTI and TI are fused with the phenyl group, indenyl group, and benzothienyl group separately in the π-extended target compounds TTIp and TIp, TTIid and TIid, and TTIbt and TIbt (including pairs of syn- and anti-isomers). Single-crystal X-ray diffraction disclosed that the tetramer syn-TTIbt keeps an S4-symmetric architecture and crystallizes in the P42/n space group. With the extension of the π-conjugation, the absorption and emission bands of the above tetramers and trimers are remarkably red-shifted. The second-order nonlinear optical (NLO) coefficients (β value) of syn-TTIbt and anti-TTIbt have been calculated to be 1.5 and 2.1 times that of their parent compound TTI, respectively. In the domain of the third-order NLO, the two-photon absorption sections (δ value) of syn-TIbt and anti-TIbt have been measured to be 37 and 102 times that of TI, respectively. These results indicate that the π-extension strategy here is successful, and the anti-isomers have better NLO properties and better π-conjugation than their corresponding syn-isomers.
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Affiliation(s)
- Bing Wang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
| | - Qi Fang
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China
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Schmid L, Fokin I, Brändlin M, Wagner D, Siewert I, Wenger OS. Accumulation of Four Electrons on a Terphenyl (Bis)disulfide. Chemistry 2022; 28:e202202386. [PMID: 36351246 PMCID: PMC10098965 DOI: 10.1002/chem.202202386] [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: 08/01/2022] [Indexed: 11/11/2022]
Abstract
The activation of N2 , CO2 or H2 O to energy-rich products relies on multi-electron transfer reactions, and consequently it seems desirable to understand the basics of light-driven accumulation of multiple redox equivalents. Most of the previously reported molecular acceptors merely allow the storage of up to two electrons. We report on a terphenyl compound including two disulfide bridges, which undergoes four-electron reduction in two separate electrochemical steps, aided by a combination of potential compression and inversion. Under visible-light irradiation using the organic super-electron donor tetrakis(dimethylamino)ethylene, a cascade of light-induced reaction steps is observed, leading to the cleavage of both disulfide bonds. Whereas one of them undergoes extrusion of sulfur to result in a thiophene, the other disulfide is converted to a dithiolate. These insights seem relevant to enhance the current fundamental understanding of photochemical energy storage.
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Affiliation(s)
- Lucius Schmid
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Igor Fokin
- University of Göttingen, Institute of Inorganic Chemistry, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Mathis Brändlin
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Dorothee Wagner
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
| | - Inke Siewert
- University of Göttingen, Institute of Inorganic Chemistry, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Oliver S Wenger
- Department of Chemistry, University of Basel, St. Johanns-Ring 19, 4056, Basel, Switzerland
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Sacristán-Martín A, Miguel D, Barbero H, Álvarez CM. Self-Resetting Bistable Redox Molecular Machines for Fullerene Recognition. Org Lett 2022; 24:5879-5883. [PMID: 35905434 PMCID: PMC9400385 DOI: 10.1021/acs.orglett.2c01856] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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Addressing control over molecular machines resulting
in variable
output modulation by mimicking nature mechanisms is a current hot
topic. The exploitation of reversibility in thiol/disulfide motifs
in chemical systems flanked by nonplanar corannulene moieties capable
to recognize fullerenes is presented herein. Two redox-based machines
have been conceived for this purpose: an ON/OFF switch that activates
its binding properties upon dimerization and a self-resetting (i.e.,
with an automated backward process) host that substantially modulates
its affinity.
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Affiliation(s)
- Adriana Sacristán-Martín
- GIR MIOMeT, IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Valladolid E47011, Spain
| | - Daniel Miguel
- GIR MIOMeT, IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Valladolid E47011, Spain
| | - Héctor Barbero
- GIR MIOMeT, IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Valladolid E47011, Spain
| | - Celedonio M Álvarez
- GIR MIOMeT, IU CINQUIMA/Química Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Valladolid E47011, Spain
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Hintzsche E. About the differentiation of anellated 1,2-dithiins in comparison to non-anellated types †. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1938568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ekkehard Hintzsche
- Department of Organic Chemistry of Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany, formerly; Private: Cubanzestr. 22 A, 18225 Kühlungsborn, Germany
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Sonnenschein C, Ender CP, Wang F, Schollmeyer D, Feng X, Narita A, Müllen K. Oligophenyls with Multiple Disulfide Bridges as Higher Homologues of Dibenzo[c,e][1,2]dithiin: Synthesis and Application in Lithium-Ion Batteries. Chemistry 2020; 26:8007-8011. [PMID: 32202685 PMCID: PMC7383724 DOI: 10.1002/chem.202000728] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 03/16/2020] [Indexed: 11/22/2022]
Abstract
Higher homologues of dibenzo[c,e][1,2]dithiin were synthesized from oligophenyls bearing multiple methylthio groups. Single-crystal X-ray analyses revealed their nonplanar structures and helical enantiomers of higher meta-congener 6. Such dibenzo[1,2]dithiin homologues are demonstrated to be applicable to lithium-ion batteries as cathode, displaying a high capacity of 118 mAh g-1 at a current density of 50 mA g-1 .
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Affiliation(s)
| | | | - Faxing Wang
- Center for Advancing Electronics Dresden (cfaed) andFaculty of Chemistry and Food ChemistryChair for Molecular Functional MaterialsTechnische Universität Dresden01062DresdenGermany
| | - Dieter Schollmeyer
- Institut für Organische ChemieJohannes Gutenberg-Universität MainzDuesbergweg 10–1455099MainzGermany
| | - Xinliang Feng
- Center for Advancing Electronics Dresden (cfaed) andFaculty of Chemistry and Food ChemistryChair for Molecular Functional MaterialsTechnische Universität Dresden01062DresdenGermany
| | - Akimitsu Narita
- Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
| | - Klaus Müllen
- Planck Institute for Polymer ResearchAckermannweg 1055128MainzGermany
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