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Inoue K, Mori A, Okano K. Ultrafast Halogen Dance Reactions of Bromoarenes Enabled by Catalytic Potassium Hexamethyldisilazide. Chemistry 2024; 30:e202400104. [PMID: 38329223 DOI: 10.1002/chem.202400104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/08/2024] [Accepted: 02/08/2024] [Indexed: 02/09/2024]
Abstract
Lochmann-Schlosser base, a stoichiometric combination of nBuLi and KOtBu, is commonly used as a superbase for deprotonating a wide range of organic compounds. In the present study, we report that catalytic potassium hexamethyldisilazide (KHMDS) exhibits higher catalytic activity than KOtBu for successive bromine-metal exchanges. Accordingly, 1-10 mol% of KHMDS dramatically enhances halogen dance reactions to introduce various electrophiles to bromopyridine, bromoimidazole, bromothiophene, bromofuran, and bromobenzene derivatives with the bromo group translocated from the original position. A dual catalytic cycle is proposed to explain the ultrafast bromine transfer.
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Affiliation(s)
- Kengo Inoue
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Atsunori Mori
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
- Research Center for Membrane and Film Technology, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
| | - Kentaro Okano
- Department of Chemical Science and Engineering, Kobe University, 1-1 Rokkodai, Nada, Kobe, 657-8501, Japan
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2
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Mallada B, Chen Q, Chutora T, Sánchez‐Grande A, Cirera B, Santos J, Martín N, Ecija D, Jelínek P, de la Torre B. Resolving Atomic‐Scale Defects in Conjugated Polymers On‐Surfaces. Chemistry 2022; 28:e202200944. [DOI: 10.1002/chem.202200944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Benjamín Mallada
- Regional Centre of Advanced Technologies and Materials Czech Advanced Technology and Research Institute (CATRIN) Palacký University Olomouc 78371 Olomouc Czech Republic
- Department of Physical Chemistry Faculty of Science Palacký University 78371 Olomouc Czech Republic
- Institute of Physics Academy of Sciences of the Czech Republic Prague Czech Republic
| | - Qifan Chen
- Institute of Physics Academy of Sciences of the Czech Republic Prague Czech Republic
| | - Taras Chutora
- Regional Centre of Advanced Technologies and Materials Czech Advanced Technology and Research Institute (CATRIN) Palacký University Olomouc 78371 Olomouc Czech Republic
- Current address: Department of Physics University of Alberta Edmonton Alberta T6G 2J1 Canada
| | | | - Borja Cirera
- IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco Madrid Spain
| | - José Santos
- IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco Madrid Spain
| | - Nazario Martín
- IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco Madrid Spain
| | - David Ecija
- IMDEA Nanociencia, Ciudad Universitaria de Cantoblanco Madrid Spain
| | - Pavel Jelínek
- Regional Centre of Advanced Technologies and Materials Czech Advanced Technology and Research Institute (CATRIN) Palacký University Olomouc 78371 Olomouc Czech Republic
- Institute of Physics Academy of Sciences of the Czech Republic Prague Czech Republic
| | - Bruno de la Torre
- Regional Centre of Advanced Technologies and Materials Czech Advanced Technology and Research Institute (CATRIN) Palacký University Olomouc 78371 Olomouc Czech Republic
- Institute of Physics Academy of Sciences of the Czech Republic Prague Czech Republic
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3
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Das AS, Nair AR, Sreekumar A, Sivan A. Approaches to Obtaining Fluorenes: An Alternate Perspective. ChemistrySelect 2022. [DOI: 10.1002/slct.202201097] [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]
Affiliation(s)
- Anusha S. Das
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri Kollam Kerala 690525 India
| | - Ajil R. Nair
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri Kollam Kerala 690525 India
| | - Anjana Sreekumar
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri Kollam Kerala 690525 India
| | - Akhil Sivan
- Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri Kollam Kerala 690525 India
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4
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Nemkovich NA, Detert H, Sobchuk AN, Tomin VI, Wróblewski T. Polarity and strong sensitivity to external electric field in azacrown oligophenylenevinylene. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 271:120824. [PMID: 35033755 DOI: 10.1016/j.saa.2021.120824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/20/2021] [Accepted: 12/25/2021] [Indexed: 06/14/2023]
Abstract
Complex study of quadrupolar azacrown dye (E,E)-5,5́-Bis[2-(4-(4',7',10',13',16'-pentaoxa-1 azacyclooctadecyl)phenyl)ethenyl]-2,2́-bipyridine 1 was performed. Electronic spectra of absorption and fluorescence in different solvents exhibit strong solvatochromism. Electrooptical absorption measurements (EOAM) were performed to determine the electric dipole moments. These measurements gave large values of dipole moments in the ground μg and Franck-Condon excited state μeFC equal to 6.8 ± 0.14C m and 39.3 ± 0.3C m, respectively. Furthermore, the results of EOAM suggest the existence two conformers in the ground state with close energies of electronic transitions. Density functional theory (DFT) calculations directly show that the shape of this molecule is not planar in the ground state and also allows the existence of two stable conformers with close energies. They appeared due to different orientations of the left and right pyridine fragments of the solute. The energies, electric dipole moments and dependences of dipole moments on the strength of applied electric field were calculated for found stable conformers of 1. DFT calculations with TD / B3LYP / 3-21G and cc-pVDZ (Time Depend) approach show that external electric field increases dramatically the dipole moments of the solute under study. The higher field intensity the larger the excited electric dipole in the range intensities from zero to ∼ 2.8·× 10 9 V/m.
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Affiliation(s)
- N A Nemkovich
- Institute of Organic Chemistry, J. Gutenberg-University of Mainz, Duesbergweg 10-14, 55099 Mainz, Germany; B.I. Stepanov Institute of Physics, Natl. Acad. Sci. of Belarus, Independence Ave. 68, 220072 Minsk, Belarus
| | - H Detert
- Institute of Organic Chemistry, J. Gutenberg-University of Mainz, Duesbergweg 10-14, 55099 Mainz, Germany.
| | - A N Sobchuk
- B.I. Stepanov Institute of Physics, Natl. Acad. Sci. of Belarus, Independence Ave. 68, 220072 Minsk, Belarus.
| | - V I Tomin
- Department of Physics, Pomeranian University of Słupsk, Słupsk 76-200 Poland.
| | - T Wróblewski
- Department of Physics, Pomeranian University of Słupsk, Słupsk 76-200 Poland.
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5
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Balamurugan G, Ramesh R. Nickel(II)‐Catalyzed Selective
(E)
‐Olefination of Methyl Heteroarenes Using Benzyl Alcohols via Acceptorless Dehydrogenative Coupling Reaction. ChemCatChem 2021. [DOI: 10.1002/cctc.202101455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gunasekaran Balamurugan
- Centre for Organometallic Chemistry School of Chemistry Bharathidasan University Tiruchirappalli 620 024 Tamilnadu India
| | - Rengan Ramesh
- Centre for Organometallic Chemistry School of Chemistry Bharathidasan University Tiruchirappalli 620 024 Tamilnadu India
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6
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Nemkovich NA, Detert H, Sobchuk AN, Tomin VI, Wróblewski T. Solvatochromy and symmetry breaking in two quadrupolar oligophenylenevinylenes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 251:119395. [PMID: 33440287 DOI: 10.1016/j.saa.2020.119395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/13/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Electrooptical absorption measurements (EOAM), solvatochromic dependences and quantum chemical simulations testify to large dipole moments change of two quadrupolar oligophenylenevinylenes upon transition to Franck-Condon excited state μeFC. The values of the dipole moments μg and μeFC are in the range [(4.2 - 4.9)1030] C m and (30.8 - 47.0)1030C m, respectively. The relations of dipole moments in the ground and excited states determined by EOAM correlate well with results obtained via the solvatochromic method. Calculations carried out by density functional theory (DFT) show that optimized configuration of the ground state of these molecules is not planar. The results from all methods applied unequivocally show the structural symmetry breaking in the studied compounds.
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Affiliation(s)
- N A Nemkovich
- Institute of Organic Chemistry, J. Gutenberg-University of Mainz, Duesbergweg 10-14, 55099 Mainz, Germany; B.I. Stepanov Institute of Physics, NASB, Independence Ave. 68, 220072 Minsk, Belarus
| | - H Detert
- Institute of Organic Chemistry, J. Gutenberg-University of Mainz, Duesbergweg 10-14, 55099 Mainz, Germany
| | - A N Sobchuk
- B.I. Stepanov Institute of Physics, NASB, Independence Ave. 68, 220072 Minsk, Belarus
| | - V I Tomin
- Physics Department, Pomeranian University in Słupsk, Słupsk 76-200, Poland
| | - T Wróblewski
- Physics Department, Pomeranian University in Słupsk, Słupsk 76-200, Poland.
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7
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Li C, Chen B, Ma X, Mo X, Zhang G. Light‐Promoted Copper‐Catalyzed Enantioselective Alkylation of Azoles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202009323] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chen Li
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Bin Chen
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xiaodong Ma
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xueling Mo
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
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8
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Li C, Chen B, Ma X, Mo X, Zhang G. Light‐Promoted Copper‐Catalyzed Enantioselective Alkylation of Azoles. Angew Chem Int Ed Engl 2020; 60:2130-2134. [DOI: 10.1002/anie.202009323] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 09/06/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Chen Li
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Bin Chen
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xiaodong Ma
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xueling Mo
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
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9
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Yaragorla S, Rajesh P. In Situ Generation of Allenes and their Application to One‐Pot Assembly of Functionalized Fluoreno[3,2‐
b
]furans by Calcium‐Catalyzed, Regioselective, 3‐Component Reactions. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001310] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Srinivasarao Yaragorla
- School of Chemistry, Gurbaksh Building, W‐16, 17 University of Hyderabad P.O. Central University Gachibowli Hyderabad 5000046 Telangana State India
| | - Pallava Rajesh
- School of Chemistry, Gurbaksh Building, W‐16, 17 University of Hyderabad P.O. Central University Gachibowli Hyderabad 5000046 Telangana State India
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10
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Tao S, Zhu S, Feng T, Zheng C, Yang B. Crosslink‐Enhanced Emission Effect on Luminescence in Polymers: Advances and Perspectives. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916591] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Songyuan Tao
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
| | - Shoujun Zhu
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
- Key Laboratory of Organ Regeneration and Transplantation of the Ministry of EducationThe First Hospital of Jilin University Changchun 130061 P. R. China
| | - Tanglue Feng
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
| | - Chengyu Zheng
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
| | - Bai Yang
- State Key Laboratory of Supramolecular Structure and MaterialsCollege of ChemistryJilin University Changchun 130012 P. R. China
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11
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Crosslink‐Enhanced Emission Effect on Luminescence in Polymers: Advances and Perspectives. Angew Chem Int Ed Engl 2020; 59:9826-9840. [DOI: 10.1002/anie.201916591] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Indexed: 01/14/2023]
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12
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Delafresnaye L, Bloesser FR, Kockler KB, Schmitt CW, Irshadeen IM, Barner‐Kowollik C. All Eyes on Visible‐Light Peroxyoxalate Chemiluminescence Read‐Out Systems. Chemistry 2019; 26:114-127. [DOI: 10.1002/chem.201904054] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 09/24/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Laura Delafresnaye
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street QLD 4000 Brisbane Australia
| | - Fabian R. Bloesser
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street QLD 4000 Brisbane Australia
| | - Katrin B. Kockler
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street QLD 4000 Brisbane Australia
| | - Christian W. Schmitt
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street QLD 4000 Brisbane Australia
| | - Ishrath M. Irshadeen
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street QLD 4000 Brisbane Australia
| | - Christopher Barner‐Kowollik
- School of Chemistry, Physics and Mechanical Engineering Queensland University of Technology (QUT) 2 George Street QLD 4000 Brisbane Australia
- Macromolecular Architectures Institut für Technische Chemie und Polymerchemie Karlsruhe Institute of Technology (KIT) Engesserstr. 18 76131 Karlsruhe Germany
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13
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Zhang LL, Miao WK, Ren LJ, Yan YK, Lin Y, Wang W. Twining Poly(polyoxometalate) Chains into Nanoropes. Chemistry 2019; 25:13396-13401. [PMID: 31397509 DOI: 10.1002/chem.201902875] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/08/2019] [Indexed: 12/22/2022]
Abstract
Organic polymers and inorganic clusters belong to two different disciplines and have completely different properties and structures. When a cluster is attached to the backbone of a polymer as a pendant, the resultant hybrid polymers (polyclusters) exhibit unique behaviours totally different from those of conventional polymers owing to the nanoscale size of the cluster and its particular interactions. Herein, the aggregation of a poly(polyoxometalate)-a polynorbornene backbone with inorganic polyoxometalate cluster pendants-upon addition of a non-solvent to its dilute solution is reported. A three-dimensional network of tangled and snake-like nanothreads was observed. Direct visualisation of individual nanoscale clusters enabled identification of single chains within the nanothreads. These observations suggest that during the process of aggregation, the hybrid polymer forms curved or extended chains as a consequence of an armouring effect in which the collapsed cluster pendants wrap around the backbone. The collapse occurs because they become less soluble in the solvent/non-solvent mixture. The extended chains then become entwined and form nanoropes consisting of multiple chains wound around each other. This study provides a deeper understanding of the nature of polyclusters and should also prove useful for their future development and application.
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Affiliation(s)
- Lan-Lan Zhang
- Center for Synthetic Soft Materials, Key Laboratory of, Functional Polymer Materials of Ministry of Education and Institute of, Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Wen-Ke Miao
- Center for Synthetic Soft Materials, Key Laboratory of, Functional Polymer Materials of Ministry of Education and Institute of, Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Li-Jun Ren
- Center for Synthetic Soft Materials, Key Laboratory of, Functional Polymer Materials of Ministry of Education and Institute of, Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Yu-Kun Yan
- Center for Synthetic Soft Materials, Key Laboratory of, Functional Polymer Materials of Ministry of Education and Institute of, Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P.R. China
| | - Yue Lin
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, 230026, P.R. China
| | - Wei Wang
- Center for Synthetic Soft Materials, Key Laboratory of, Functional Polymer Materials of Ministry of Education and Institute of, Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, P.R. China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, 300071, P.R. China
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14
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Zhang Q, Ma D, Wen D, Wang C, Bai X, Wang S. Novel Conjugated Side Chain Fluorinated Polymers Based on Fluorene for Light-Emitting and Ternary Flash Memory Devices. ChemistryOpen 2019; 8:1267-1275. [PMID: 31637150 PMCID: PMC6797500 DOI: 10.1002/open.201900210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/16/2019] [Indexed: 11/16/2022] Open
Abstract
Three novel conjugated polymers based on 9,9'-dioctylfluorene unit and isoindolo[2,1-a]benzimidazol-11-one with different fluorine substituents (0, 2 and 4) were synthesized. PLED and resistive memory devices based on these polymers were prepared consequently. PLED based on four-fluorinated polymer showed the highest maximum brightness of 3192 cd m-2 with almost 5-fold increase of current efficiency 8-fold increase of external quantum efficiency compared to that of the other two, and all the PLEDs exhibited good emission stability with no noticeable change of electroluminescence even under high voltage of 10 V. The memory device of doubly-fluorinated polymer exhibited ternary flash behavior with threshold voltages below -2.5 V, while device of four-fluorinated polymer possessed ON/OFF current ratio above 104. Impact of fluorine substitutions on the performance of devices were briefly investigated. The results revealed that the improvement of device performance might not scale with the increasing number of fluorine substitutions, and the four-fluorine-substituted polymer and doubly-fluorinated polymer could be encouraging materials for applications of PLED and resistive memory device and worth of further design of other new polymer systems.
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Affiliation(s)
- Qian Zhang
- School of Chemistry Engineering and Materials ScienceHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
| | - Dongge Ma
- Institute of Polymer MaterialsSouth China University of Technology381 Wushan RoadTianhe DistrictGuangzhouChina510641
| | - Dianzhong Wen
- Key Laboratories of Senior-education for Electronic EngineeringHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
| | - Cheng Wang
- School of Chemistry Engineering and Materials ScienceHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
| | - Xuduo Bai
- School of Chemistry Engineering and Materials ScienceHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
| | - Shuhong Wang
- School of Chemistry Engineering and Materials ScienceHeilongjiang University74 Xuefu RoadNangang DistrictHarbinChina150080
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15
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Schaack C, Arrico L, Sidler E, Górecki M, Di Bari L, Diederich F. Helicene Monomers and Dimers: Chiral Chromophores Featuring Strong Circularly Polarized Luminescence. Chemistry 2019; 25:8003-8007. [DOI: 10.1002/chem.201901248] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/26/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Cédric Schaack
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Lorenzo Arrico
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
| | - Eric Sidler
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Marcin Górecki
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Lorenzo Di Bari
- Dipartimento di Chimica e Chimica IndustrialeUniversità di Pisa via Moruzzi 13 56124 Pisa Italy
| | - François Diederich
- Laboratorium für Organische ChemieETH Zurich Hönggerberg, HCI Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
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16
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Chen M, Zhao Y, Tang Z, Zhang B, Wei B. Multifunctional Organic Emitters for High‐Performance and Low‐Cost Organic Light‐Emitting Didoes. CHEM REC 2019; 19:1768-1778. [DOI: 10.1002/tcr.201900005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Minyu Chen
- Microelectronic R&D Center, School of Mechatronic Engineering and AutomationShanghai University 149 Yanchang Road Shanghai 200072 P. R. China
| | - Yi Zhao
- Microelectronic R&D Center, School of Mechatronic Engineering and AutomationShanghai University 149 Yanchang Road Shanghai 200072 P. R. China
| | - Zhenyu Tang
- Microelectronic R&D Center, School of Mechatronic Engineering and AutomationShanghai University 149 Yanchang Road Shanghai 200072 P. R. China
| | - Bin Zhang
- College of Chemistry and Molecular EngineeringZhengzhou University No.100 Science Avenue Zhengzhou 450001 P. R. China
| | - Bin Wei
- Microelectronic R&D Center, School of Mechatronic Engineering and AutomationShanghai University 149 Yanchang Road Shanghai 200072 P. R. China
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17
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Zhang W, Li H, Wang L. Cobalt‐Catalyzed Temperature‐Dependent Annulation of 3‐Aryl‐1,2,4‐oxadiazolones with 1,3‐Diynes: An Approach to π‐Conjugated Molecules. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801165] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Wenge Zhang
- Department of ChemistryHuaibei Normal University, Huaibei Anhui 235000 People's Republic of China
| | - Hongji Li
- Department of ChemistryHuaibei Normal University, Huaibei Anhui 235000 People's Republic of China
| | - Lei Wang
- Department of ChemistryHuaibei Normal University, Huaibei Anhui 235000 People's Republic of China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry Shanghai 200032 People's Republic of China
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18
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Boxi S, Jana D, Parui PP, Ghorai BK. Dibenzo[ a, c]phenazine-Based Donor-Acceptor (D-A) Tetra Branched Molecules: Fine Tuning of Optical Properties. ChemistrySelect 2018. [DOI: 10.1002/slct.201801500] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shatabdi Boxi
- Department of Chemistry; Indian Institute of Engineering Science and Technology, Shibpur; Howrah 711 103 India
| | - Debabrata Jana
- Department of Chemistry; Indian Institute of Engineering Science and Technology, Shibpur; Howrah 711 103 India
| | - Partha P. Parui
- Department of Chemistry; Jadavpur University; Kolkata 700 032 India
| | - Binay K. Ghorai
- Department of Chemistry; Indian Institute of Engineering Science and Technology, Shibpur; Howrah 711 103 India
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19
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Liardo E, Ríos-Lombardía N, Morís F, González-Sabín J, Rebolledo F. A Straightforward Deracemization of sec
-Alcohols Combining Organocatalytic Oxidation and Biocatalytic Reduction. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800569] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Elisa Liardo
- Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33006 Oviedo Spain
| | | | - Francisco Morís
- Vivero Ciencias de la Salud; EntreChem SL; Santo Domingo de Guzmán 33011 Oviedo Spain
| | - Javier González-Sabín
- Vivero Ciencias de la Salud; EntreChem SL; Santo Domingo de Guzmán 33011 Oviedo Spain
| | - Francisca Rebolledo
- Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33006 Oviedo Spain
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20
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Barman MK, Waiba S, Maji B. Manganese-Catalyzed Direct Olefination of Methyl-Substituted Heteroarenes with Primary Alcohols. Angew Chem Int Ed Engl 2018; 57:9126-9130. [DOI: 10.1002/anie.201804729] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Milan K. Barman
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Satyadeep Waiba
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Biplab Maji
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
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21
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Barman MK, Waiba S, Maji B. Manganese-Catalyzed Direct Olefination of Methyl-Substituted Heteroarenes with Primary Alcohols. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804729] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Milan K. Barman
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Satyadeep Waiba
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
| | - Biplab Maji
- Department of Chemical Sciences; Indian Institute of Science Education and Research Kolkata; Mohanpur 741246 India
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22
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Patel UN, Punji B. A Copper- and Phosphine-Free Nickel(II)-Catalyzed Method for C−H Bond Alkynylation of Benzothiazoles and Related Azoles. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800243] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ulhas N. Patel
- Organometallic Synthesis and Catalysis Group; Chemical Engineering Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune- 411 008 Maharashtra India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group; Chemical Engineering Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune- 411 008 Maharashtra India
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23
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Gupta RK, Shankar Rao DS, Prasad SK, Achalkumar AS. Columnar Self-Assembly of Electron-Deficient Dendronized Bay-Annulated Perylene Bisimides. Chemistry 2018; 24:3566-3575. [PMID: 29283196 DOI: 10.1002/chem.201705290] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Indexed: 11/08/2022]
Abstract
Three new heteroatom bay-annulated perylene bisimides (PBIs) have been synthesized by microwave-assisted synthesis in excellent yield. N-annulated and S-annulated perylene bisimides exhibited columnar hexagonal phase, whereas Se-annulated perylene bisimide exhibited low temperature columnar oblique phase in addition to the high temperature columnar hexagonal phase. The cup shaped bay-annulated PBIs pack into columns with enhanced intermolecular interactions. In comparison to PBI, these molecules exhibited lower melting and clearing temperature, with good solubility. A small red shift in the absorption was seen in the case of N-annulated PBI, whereas S- and Se-annulated PBIs exhibited blue-shifted absorption spectra. Bay-annulation increased the HOMO and LUMO levels of the N-annulated perylene bisimide, whereas a slight increase in the LUMO level and a decrease in the HOMO levels were observed in the case of S- and Se-annulated perylene bisimides, in comparison to the simple perylene bisimide. The band gaps of PBI and PBI-N were almost same, whereas an increase in the band gaps were observed in the case of S- and Se-annulated PBIs. The tendency to freeze in the ordered glassy columnar phase for PBI-N and PBI-S will help to overcome the charge traps due to crystallization, which are detrimental to one-dimensional charge carrier mobility. These solution processable electron deficient columnar semiconductors possessing good thermal stability may form an easily accessible promising class of n-type materials.
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Affiliation(s)
- Ravindra Kumar Gupta
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Doddamane S Shankar Rao
- Centre for Nano and Soft Matter Sciences, Jalahalli, P. B. No. 1329, Bangalore, 560013, India
| | - S Krishna Prasad
- Centre for Nano and Soft Matter Sciences, Jalahalli, P. B. No. 1329, Bangalore, 560013, India
| | - Ammathnadu S Achalkumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
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24
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Al-Shuaeeb RAA, Dejean C, Alami M, Messaoudi S. Controllable Activation of Pd-G3 Palladacycle Precatalyst in the Presence of Thiosugars: Rapid Access to 1-Aminobiphenyl Thioglycoside Atropoisomers at Room Temperature. Chem Asian J 2017; 12:3114-3118. [PMID: 29071808 DOI: 10.1002/asia.201701415] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/19/2017] [Indexed: 12/23/2022]
Abstract
A controllable method for the functionalization of XantPhos Pd-G3 precatalyst with thiosugars and thiols has been established. Under mild and operationally simple reaction conditions through just mixing of precatalyst and thiosugars (α- or β-mono-, di- and poly-thiosugar derivatives) in water at 25 °C for 20 min, a series of 1-aminobiphenyl thioglycosides that are difficult to synthesize by classical methods has been synthesized in very high yields.
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Affiliation(s)
| | - Camille Dejean
- BioCIS, Univ. Paris-Sud, CNRS, University Paris-Saclay, Châtenay-Malabry, France
| | - Mouâd Alami
- BioCIS, Univ. Paris-Sud, CNRS, University Paris-Saclay, Châtenay-Malabry, France
| | - Samir Messaoudi
- BioCIS, Univ. Paris-Sud, CNRS, University Paris-Saclay, Châtenay-Malabry, France
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25
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Poddar M, Misra R. NIR-Absorbing Donor-Acceptor Based 1,1,4,4-Tetracyanobuta-1,3-Diene (TCBD)- and Cyclohexa-2,5-Diene-1,4-Ylidene-Expanded TCBD-Substituted Ferrocenyl Phenothiazines. Chem Asian J 2017; 12:2908-2915. [PMID: 28901716 DOI: 10.1002/asia.201700879] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/11/2017] [Indexed: 11/11/2022]
Abstract
A series of unsymmetrical (D-A-D1 , D1 -π-D-A-D1 , and D1 -A1 -D-A2 -D1 ; A=acceptor, D=donor) and symmetrical (D1 -A-D-A-D1 ) phenothiazines (4 b, 4 c, 4 c', 5 b, 5 c, 5 d, 5 d', 5 e, 5 e', 5 f, and 5 f') were designed and synthesized by a [2+2] cycloaddition-electrocyclic ring-opening reaction of ferrocenyl-substituted phenothiazines with tetracyanoethylene (TCNE) and 7,7,8,8-tetracyanoquinodimethane (TCNQ). The photophysical, electrochemical, and computational studies show a strong charge-transfer (CT) interaction in the phenothiazine derivatives that can be tuned by varying the number of TCNE/TCNQ acceptors. Phenothiazines 4 b, 4 c, 4 c', 5 b, 5 c, 5 d, 5 d', 5 e, 5 e', 5 f and 5 f' show redshifted absorption in the λ=400 to 900 nm region, as a result of a low HOMO-LUMO gap, which is supported by TD-DFT calculations. The electrochemical study exhibits reduction waves at low potential due to strong 1,1,4,4-tetracyanobuta-1,3-diene (TCBD) and cyclohexa-2,5-diene-1,4-ylidene-expanded TCBD acceptors. The incorporation of cyclohexa-2,5-diene-1,4-ylidene-expanded TCBD stabilized the LUMO energy level to a greater extent than TCBD.
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Affiliation(s)
- Madhurima Poddar
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
| | - Rajneesh Misra
- Department of Chemistry, Indian Institute of Technology Indore, Indore, 453552, India
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26
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Shen R, Liu Y, Yang W, Hou Y, Zhao X, Liu H. Triphenylamine-Functionalized Silsesquioxane-Based Hybrid Porous Polymers: Tunable Porosity and Luminescence for Multianalyte Detection. Chemistry 2017; 23:13465-13473. [DOI: 10.1002/chem.201702501] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Rong Shen
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
| | - Yun Liu
- Department of Materials Science and Engineering; Massachusetts Institute of Technology; 77 Massachusetts Avenue Cambridge MA 02139 USA
| | - Wenyan Yang
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
| | - Yuqi Hou
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
| | - Xiaoling Zhao
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
| | - Hongzhi Liu
- Key Laboratory of Special Functional Aggregated Materials; Ministry of Education; School of Chemistry and Chemical Engineering; Shandong University; Jinan P. R. China
- Key Laboratory of Organosilicon; and Material Technology of Ministry of Education; Hangzhou Normal University; Hangzhou 31112 P. R. China
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27
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Majchrzak M, Wilkowski G, Kubicki M. A Highly Stereoselective and Efficient Catalytic Approach for the Synthesis of trans
-Stilbene-Arenes as π-Conjugated Materials. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700602] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mariusz Majchrzak
- Faculty of Chemistry; Department of Organometallic Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89b 61-614 Poznan Poland
| | - Grzegorz Wilkowski
- Faculty of Chemistry; Department of Organometallic Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89b 61-614 Poznan Poland
| | - Maciej Kubicki
- Faculty of Chemistry; Department of Organometallic Chemistry; Adam Mickiewicz University in Poznań; Umultowska 89b 61-614 Poznan Poland
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28
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Khake SM, Soni V, Gonnade RG, Punji B. A General Nickel-Catalyzed Method for C−H Bond Alkynylation of Heteroarenes Through Chelation Assistance. Chemistry 2017; 23:2907-2914. [DOI: 10.1002/chem.201605306] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Indexed: 01/12/2023]
Affiliation(s)
- Shrikant M. Khake
- Organometallic Synthesis and Catalysis Group; Chemical Engineering Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411 008 Maharastra India
| | - Vineeta Soni
- Organometallic Synthesis and Catalysis Group; Chemical Engineering Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411 008 Maharastra India
| | - Rajesh G. Gonnade
- Centre for Material Characterization; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411 008 Maharastra India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group; Chemical Engineering Division; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road Pune 411 008 Maharastra India
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29
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Zafra JL, Qiu L, Yanai N, Mori T, Nakano M, Alvarez MP, Navarrete JTL, Gómez-García CJ, Kertesz M, Takimiya K, Casado J. Reversible Dimerization and Polymerization of a Janus Diradical To Produce Labile C−C Bonds and Large Chromic Effects. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605997] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- José L. Zafra
- Department of Physical Chemistry; University of Málaga; 29071 Málaga Spain
| | - Lili Qiu
- Department of Chemistry and Institute of Soft Matter; Georgetown University; Washington D.C. 20057-1227 USA
| | - Naoyuki Yanai
- Department of Applied Chemistry, Graduate School of Engineering; Hiroshima University Kagamiyama; Higashi-Hiroshima 739-8527 Japan
| | - Takamichi Mori
- Department of Applied Chemistry, Graduate School of Engineering; Hiroshima University Kagamiyama; Higashi-Hiroshima 739-8527 Japan
- Emergent Molecular Function Research Group; RIKEN Center for Emergent Matter Science (CEMS); 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Masahiro Nakano
- Emergent Molecular Function Research Group; RIKEN Center for Emergent Matter Science (CEMS); 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Miriam Peña Alvarez
- Department of Physical Chemistry; Complutense University of Madrid; 28040 Madrid Spain
| | | | | | - Miklos Kertesz
- Department of Chemistry and Institute of Soft Matter; Georgetown University; Washington D.C. 20057-1227 USA
| | - Kazuo Takimiya
- Emergent Molecular Function Research Group; RIKEN Center for Emergent Matter Science (CEMS); 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Juan Casado
- Department of Physical Chemistry; University of Málaga; 29071 Málaga Spain
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30
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Zafra JL, Qiu L, Yanai N, Mori T, Nakano M, Alvarez MP, Navarrete JTL, Gómez‐García CJ, Kertesz M, Takimiya K, Casado J. Reversible Dimerization and Polymerization of a Janus Diradical To Produce Labile C−C Bonds and Large Chromic Effects. Angew Chem Int Ed Engl 2016; 55:14563-14568. [DOI: 10.1002/anie.201605997] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Indexed: 11/09/2022]
Affiliation(s)
- José L. Zafra
- Department of Physical Chemistry University of Málaga 29071 Málaga Spain
| | - Lili Qiu
- Department of Chemistry and Institute of Soft Matter Georgetown University Washington D.C. 20057-1227 USA
| | - Naoyuki Yanai
- Department of Applied Chemistry, Graduate School of Engineering Hiroshima University Kagamiyama Higashi-Hiroshima 739-8527 Japan
| | - Takamichi Mori
- Department of Applied Chemistry, Graduate School of Engineering Hiroshima University Kagamiyama Higashi-Hiroshima 739-8527 Japan
- Emergent Molecular Function Research Group RIKEN Center for Emergent Matter Science (CEMS) 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Masahiro Nakano
- Emergent Molecular Function Research Group RIKEN Center for Emergent Matter Science (CEMS) 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Miriam Peña Alvarez
- Department of Physical Chemistry Complutense University of Madrid 28040 Madrid Spain
| | | | | | - Miklos Kertesz
- Department of Chemistry and Institute of Soft Matter Georgetown University Washington D.C. 20057-1227 USA
| | - Kazuo Takimiya
- Emergent Molecular Function Research Group RIKEN Center for Emergent Matter Science (CEMS) 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Juan Casado
- Department of Physical Chemistry University of Málaga 29071 Málaga Spain
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31
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Liu W, Sun Y, Zhao H, Li B, Chen S. Ytterbium(III) Trifluoromethanesulfonate Catalyzed Ring-Opening C(sp3
)−N Bond Formation of Benzoxazoles with Propargylic Alcohols. ChemCatChem 2016. [DOI: 10.1002/cctc.201600606] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenfei Liu
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 P. R. China
| | - Yongqing Sun
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 P. R. China
| | - Haiying Zhao
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 P. R. China
| | - Baoguo Li
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 P. R. China
| | - Shufeng Chen
- Inner Mongolia Key Laboratory of Fine Organic Synthesis; Department of Chemistry and Chemical Engineering; Inner Mongolia University; Hohhot 010021 P. R. China
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32
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Jhulki S, Mishra AK, Chow TJ, Moorthy JN. Helicenes as All-in-One Organic Materials for Application in OLEDs: Synthesis and Diverse Applications of Carbo- and Aza[5]helical Diamines. Chemistry 2016; 22:9375-86. [DOI: 10.1002/chem.201600668] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Indexed: 11/05/2022]
Affiliation(s)
- Samik Jhulki
- Department of Chemistry; Indian Institute of Technology; Kanpur 208016 India), Fax: (+91) 512-2596806
| | - Abhaya Kumar Mishra
- Department of Chemistry; Indian Institute of Technology; Kanpur 208016 India), Fax: (+91) 512-2596806
| | - Tahsin J. Chow
- Institute of Chemistry; Academia Sinica; Taipei, Taiwan 115 Republic of China
| | - Jarugu Narasimha Moorthy
- Department of Chemistry; Indian Institute of Technology; Kanpur 208016 India), Fax: (+91) 512-2596806
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33
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Veerabhadraswamy BN, Dambal HK, Rao DSS, Yelamaggad CV. s-Triazine-Based Functional Discotic Liquid Crystals: Synthesis, Mesomorphism and Photoluminescence. Chemphyschem 2016; 17:2225-37. [DOI: 10.1002/cphc.201600280] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Indexed: 01/12/2023]
Affiliation(s)
| | - Hashambi K. Dambal
- Centre for Nano and Soft Matter Sciences; Jalahalli Bangalore 560 013 India
| | - D. S. Shankar Rao
- Centre for Nano and Soft Matter Sciences; Jalahalli Bangalore 560 013 India
| | - C. V. Yelamaggad
- Centre for Nano and Soft Matter Sciences; Jalahalli Bangalore 560 013 India
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34
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Affiliation(s)
- Wei Weng
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
| | - Peining Chen
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
| | - Sisi He
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
| | - Xuemei Sun
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
| | - Huisheng Peng
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
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35
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Weng W, Chen P, He S, Sun X, Peng H. Smart Electronic Textiles. Angew Chem Int Ed Engl 2016; 55:6140-69. [DOI: 10.1002/anie.201507333] [Citation(s) in RCA: 392] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Wei Weng
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
| | - Peining Chen
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
| | - Sisi He
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
| | - Xuemei Sun
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
| | - Huisheng Peng
- State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Polymers and Polymer Composite Materials, Department of Macromolecular Science, and Laboratory of Advanced Materials; Fudan University; Shanghai 200438 China
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials; Donghua University; Shanghai 201620 China
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36
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Nikolić JD, Wouters S, Romanova J, Shimizu A, Champagne B, Junkers T, Vanderzande D, Van Neck D, Waroquier M, Van Speybroeck V, Catak S. PPV Polymerization through the Gilch Route: Diradical Character of Monomers. Chemistry 2015; 21:19176-85. [PMID: 26568272 DOI: 10.1002/chem.201501900] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Indexed: 11/08/2022]
Abstract
Despite various studies on the polymerization of poly(p-phenylene vinylene) (PPV) through different precursor routes, detailed mechanistic knowledge on the individual reaction steps and intermediates is still incomplete. The present study aims to gain more insight into the radical polymerization of PPV through the Gilch route. The initial steps of the polymerization involve the formation of a p-quinodimethane intermediate, which spontaneously self-initiates through a dimerization process leading to the formation of diradical species; chain propagation ensues on both sides of the diradical or chain termination occurs by the formation of side products, such as [2.2]paracyclophanes. Furthermore, different p-quinodimethane systems were assessed with respect to the size of their aromatic core as well as the presence of heteroatoms in/on the conjugated system. The nature of the aromatic core and the specific substituents alter the electronic structure of the p-quinodimethane monomers, affecting the mechanism of polymerization. The diradical character of the monomers has been investigated with several advanced methodologies, such as spin-projected UHF, CASSCF, CASPT2, and DMRG calculations. It was shown that larger aromatic cores led to a higher diradical character in the monomers, which in turn is proposed to cause rapid initiation.
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Affiliation(s)
- Jelena D Nikolić
- Center for Molecular Modeling, Ghent University, Technologie Park 903, Zwijnaarde, 9052 (Belgium).,Faculty of Science, University of Kragujevac, 12 Radoja Domanovića, 34000 Kragujevac (Serbia)
| | - Sebastian Wouters
- Center for Molecular Modeling, Ghent University, Technologie Park 903, Zwijnaarde, 9052 (Belgium).,Current address: Department of Chemistry, Princeton University, Frick Chemistry Laboratory, Princeton, New Jersey 08544 (USA)
| | - Julia Romanova
- Laboratoire de Chimie Théorique, University of Namur, Rue de Bruxelles 61, 5000 Namur (Belgium).,Current address: Advanced Technology Institute, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford, GU2 7XH. (UK)
| | - Akihiro Shimizu
- Laboratoire de Chimie Théorique, University of Namur, Rue de Bruxelles 61, 5000 Namur (Belgium).,Current address: Department of Synthetic and Biological Chemistry, Kyoto University, Kyoto, (Japan)
| | - Benoît Champagne
- Laboratoire de Chimie Théorique, University of Namur, Rue de Bruxelles 61, 5000 Namur (Belgium).
| | - Tanja Junkers
- Institute for Materials Research (imo-imomec), Hasselt University, Martelarenlaan 42, 3500 Hasselt (Belgium).,IMEC, IMOMEC Ass. Lab., Universitaire Campus, Wetenschapspark 1, 3590 Diepenbeek (Belgium)
| | - Dirk Vanderzande
- Institute for Materials Research (imo-imomec), Hasselt University, Martelarenlaan 42, 3500 Hasselt (Belgium).,IMEC, IMOMEC Ass. Lab., Universitaire Campus, Wetenschapspark 1, 3590 Diepenbeek (Belgium)
| | - Dimitri Van Neck
- Center for Molecular Modeling, Ghent University, Technologie Park 903, Zwijnaarde, 9052 (Belgium)
| | - Michel Waroquier
- Center for Molecular Modeling, Ghent University, Technologie Park 903, Zwijnaarde, 9052 (Belgium)
| | - Veronique Van Speybroeck
- Center for Molecular Modeling, Ghent University, Technologie Park 903, Zwijnaarde, 9052 (Belgium)
| | - Saron Catak
- Center for Molecular Modeling, Ghent University, Technologie Park 903, Zwijnaarde, 9052 (Belgium). .,Department of Chemistry, Bogazici University, Bebek, Istanbul, 34342 (Turkey).
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37
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Zhu D, Liu P, Lu W, Wang H, Luo B, Hu Y, Huang P, Wen S. Relayed Regioselective Alkynylation/Olefination of Unsymmetrical Cyclic Diaryliodonium Species Catalyzed by Cu and Pd: Affording Fluorescent Cytotoxic Benzoxazoles. Chemistry 2015; 21:18915-20. [PMID: 26516085 DOI: 10.1002/chem.201503791] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Indexed: 11/10/2022]
Abstract
Although cyclic diaryliodonium species have the potential to act as valuable synthons for cascade transformations, they still remain largely unexplored. The regioselectivity associated with unsymmetrical cyclic diaryliodonium species has previously been known to pose a challenge. A regioselective relayed alkynylation and olefination of unsymmetrical cyclic diaryliodonium species has been achieved by installation of a directing amido group. These relayed transformations were delayed until an oxazole ring had formed, delivering a series of unique fluorescent benzoxazoles. Moreover, some of these synthetic benzoxazoles showed apparent inhibitory activity against malignant cancer cells. Further confocal visualization revealed that benzoxazoles targeted cell nuclei. These findings might provide a novel structural scaffold to develop desirable anticancer agents.
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Affiliation(s)
- Daqian Zhu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University 651 Dongfeng East Road, Guangzhou 510060 (China).,School of Pharmaceutical Sciences, Sun Yat-sen University, 132 Waihuan East Road, Guangzhou 510006 (China)
| | - Panpan Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University 651 Dongfeng East Road, Guangzhou 510060 (China)
| | - Wenhua Lu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University 651 Dongfeng East Road, Guangzhou 510060 (China)
| | - Haiwen Wang
- School of Pharmaceutical Sciences, Sun Yat-sen University, 132 Waihuan East Road, Guangzhou 510006 (China)
| | - Bingling Luo
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University 651 Dongfeng East Road, Guangzhou 510060 (China).,School of Pharmaceutical Sciences, Sun Yat-sen University, 132 Waihuan East Road, Guangzhou 510006 (China)
| | - Yumin Hu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University 651 Dongfeng East Road, Guangzhou 510060 (China)
| | - Peng Huang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University 651 Dongfeng East Road, Guangzhou 510060 (China).
| | - Shijun Wen
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University 651 Dongfeng East Road, Guangzhou 510060 (China). .,School of Pharmaceutical Sciences, Sun Yat-sen University, 132 Waihuan East Road, Guangzhou 510006 (China).
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38
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Yorsaeng S, Kato Y, Tsutsumi K, Inagaki A, Kitiyanan B, Fujiki M, Nomura K. Synthesis of Well-Defined Oligo(2,5-dialkoxy-1,4-phenylene vinylene)s with Chiral End Groups: Unique Helical Aggregations Induced by the Chiral Chain Ends. Chemistry 2015; 21:16764-8. [DOI: 10.1002/chem.201503158] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Indexed: 12/31/2022]
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39
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Verbelen B, Cunha Dias Rezende L, Boodts S, Jacobs J, Van Meervelt L, Hofkens J, Dehaen W. Radical CH Alkylation of BODIPY Dyes Using Potassium Trifluoroborates or Boronic Acids. Chemistry 2015. [DOI: 10.1002/chem.201500938] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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40
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Suresh D, Gomes CSB, Lopes PS, Figueira CA, Ferreira B, Gomes PT, Di Paolo RE, Maçanita AL, Duarte MT, Charas A, Morgado J, Vila-Viçosa D, Calhorda MJ. Luminescent Di- and Trinuclear Boron Complexes Based on Aromatic Iminopyrrolyl Spacer Ligands: Synthesis, Characterization, and Application in OLEDs. Chemistry 2015; 21:9133-49. [DOI: 10.1002/chem.201500109] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2015] [Indexed: 11/05/2022]
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41
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X-ray structures of precursors of styrylpyridine-derivatives used to obtain 4-((E)-2-(pyridin-2-yl)vinyl)benzamido-TEMPO: synthesis and characterization. Molecules 2015; 20:5793-811. [PMID: 25849803 PMCID: PMC6272471 DOI: 10.3390/molecules20045793] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 03/25/2015] [Accepted: 03/25/2015] [Indexed: 11/17/2022] Open
Abstract
The synthesis and characterization of the precursor isomers trans-4-(2-(pyridin-2-yl)vinylbenzaldehyde (I), trans-4-(2-(pyridin-4-yl)vinylbenzaldehyde (II), trans-4-(2-(pyridin-2-yl)vinylbenzoic acid (III) and (E)-4-(2-(pydridin-4-yl)vinylbenzoic acid (IV) are reported. These compounds were prepared in order to obtain trans-4-((E)-2-(pyridin-2-yl)vinyl)benzamide-TEMPO (V). Compounds I and II were obtained by using a Knoevenagel reaction in the absence of a condensing agent and solvent. Oxidation of the aldehyde group using the Jones reagent afforded the corresponding acid forms III and IV. A condensation reaction with 4-amino-TEMPO using oxalyl chloride/DMF/CH2Cl2 provided the 4-((E)-2-(pyridin-2-yl)vinyl)benzamide-TEMPO. Single crystals of compounds I, II and III were obtained and characterized by X-ray diffraction. Compound I belongs to space group P2(1)/c, a = 12.6674(19) Å, b = 7.2173(11) Å, c = 11.5877(14) Å, b = 97.203(13)° and the asymmetric unit was Z = 4, whereas compound II was in the space group P2(1), with a = 3.85728(9) Å, b = 10.62375(19) Å, c = 12.8625(2) Å, b = 91.722 (2)° and the asymmetric unit was Z = 2. Compound III crystallized as single colorless needle crystals, belonging to the monoclinic system with space group P2(1), with Z = 2, with a = 3.89359(7) Å, b = 17.7014(3) Å, c = 8.04530(12) Å, b = 94.4030 (16)°. All compounds were completely characterized by IR, (1)H-NMR, EI-MS and UV-Vis.
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Chan JCH, Wong HL, Wong WT, Yam VWW. Tunable Photochromism in the Robust Dithienylethene-Containing Phospholes: Design, Synthesis, Characterization, Electrochemistry, Photophysics, and Photochromic Studies. Chemistry 2015; 21:6936-48. [DOI: 10.1002/chem.201405691] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 02/03/2015] [Indexed: 11/11/2022]
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43
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Zhang Y, Zhao H, Zhang M, Su W. Carboxylic Acids as Traceless Directing Groups for the Rhodium(III)-Catalyzed Decarboxylative CH Arylation of Thiophenes. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411701] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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44
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Uhl W, Pelties S, Tannert J, Ravoo BJ, Würthwein EU. Germacyclobutenes: generation by 1,1-carbalumination or 1,1-carbagallation and their photophysical properties. Chemistry 2015; 21:2629-37. [PMID: 25522339 DOI: 10.1002/chem.201405739] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Indexed: 11/07/2022]
Abstract
Aluminium- and gallium-functionalised alkenylalkynylgermanes, R(1) 2 Ge(C≡C-R(2) )[C{E(CMe3 )2 }=C(H)-R(2) ] (E=Al, Ga), exhibit a close contact between the coordinatively unsaturated Al or Ga atoms and the α-C atoms of the intact ethynyl groups. These interactions activate the Ge-C(alkynyl) bonds and favour the thermally induced insertion of these C atoms into the E-C(vinyl) bonds by means of 1,1-carbalumination or 1,1-carbagallation reactions. For the first time the latter method was shown to be a powerful alternative to known metallation processes. Germacyclobutenes with an unsaturated GeC3 heterocycle and endo- and exocyclic C=C bonds resulted from concomitant Ge-C bond formation to the β-C atoms of the alkynyl groups. These heterocyclic compounds show an interesting photoluminescence behaviour with Stokes shifts of >110 nm. The fascinating properties are based on extended π-delocalisation including σ*-orbitals localised at Ge and Al. High-level quantum chemical DFT and TD-DFT calculations for an Al compound were applied to elucidate their absorption and emission properties. They revealed a biradical excited state with the transfer of a π-electron into the empty p-orbital at Al and a pyramidalisation of the metal atom.
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Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster, Corrensstraße 30, 48149 Münster (Germany), Fax: (+49) 251-8336660.
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Zhang Y, Zhao H, Zhang M, Su W. Carboxylic acids as traceless directing groups for the rhodium(III)-catalyzed decarboxylative C-H arylation of thiophenes. Angew Chem Int Ed Engl 2015; 54:3817-21. [PMID: 25631325 DOI: 10.1002/anie.201411701] [Citation(s) in RCA: 202] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Indexed: 01/26/2023]
Abstract
A rhodium(III)-catalyzed carboxylic acid directed decarboxylative C-H/C-H cross-coupling of carboxylic acids with thiophenes has been developed. With a slight adjustment of the reaction conditions based on the nature of the substrates, aryl carboxylic acids with a variety of substituents could serve as suitable coupling partners, and a broad variety of functional groups were tolerated. This method provides straightforward access to biaryl scaffolds with diverse substitution patterns, many of which have conventionally been synthesized through lengthy synthetic sequences. An illustrative example is the one-step gram-scale synthesis of a biologically active 3,5-substituted 2-arylthiophene by way of the current method.
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Affiliation(s)
- Yuanfei Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Yangqiao West Road 155, Fuzhou, Fujian 350002 (China)
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Fabry DC, Ronge MA, Zoller J, Rueping M. C-H-Funktionalisierung von Phenolen durch kombinierte Ruthenium- und Photoredoxkatalyse mit sichtbarem Licht: In-situ-Erzeugung des Oxidationsmittels. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201408891] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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47
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Fabry DC, Ronge MA, Zoller J, Rueping M. CH Functionalization of Phenols Using Combined Ruthenium and Photoredox Catalysis: In Situ Generation of the Oxidant. Angew Chem Int Ed Engl 2015; 54:2801-5. [DOI: 10.1002/anie.201408891] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Indexed: 01/02/2023]
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48
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Otero Y, Vera W, León Y, Cardozo C, Peña D, Arce A, De Sanctis Y, Gonzalez T. Synthesis, Crystal Structures and Properties of 1,8-Di(Quinol-2-yl)Octa-1,7-Diyne and 1,8-di(Phenantren-9-yl)Octa-1,7-Diyne. JOURNAL OF CHEMICAL RESEARCH 2015. [DOI: 10.3184/174751915x14198590417182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
1,8-Di(quinol-2-yl)octa-1,7-diyne and 1,8-di(phenanthren-9-yl)octa-1,7-diyne were synthesised by conventional and microwave-assisted methods in good yields. Microwave irradiation enhances the rate of these reactions. Photophysical properties of these derivatives were also evaluated, and it was found that 1,8-di(phenanthren-9-yl)octa-1,7-diyne displays a higher fluorescence quantum yield than 1,8-di(quinol-2-yl)octa-1,7-diyne. The molecular structures of 1,8-di(quinol-2-yl)octa-1,7-diyne and 1,8-di(phenanthren-9-yl)octa-1,7-diyne were established by single-crystal X-ray diffraction studies.
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Affiliation(s)
- Yomaira Otero
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Apartado 21827, Caracas 1020–A, Venezuela
| | - William Vera
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Apartado 21827, Caracas 1020–A, Venezuela
| | - Yokoy León
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Apartado 21827, Caracas 1020–A, Venezuela
| | - Claudia Cardozo
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Apartado 21827, Caracas 1020–A, Venezuela
| | - Deisy Peña
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Apartado 21827, Caracas 1020–A, Venezuela
| | - Alejandro Arce
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Apartado 21827, Caracas 1020–A, Venezuela
| | - Ysaura De Sanctis
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Apartado 21827, Caracas 1020–A, Venezuela
| | - Teresa Gonzalez
- Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Química, Apartado 21827, Caracas 1020–A, Venezuela
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49
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Theoretical investigation of structures and electronic states of a series of phenyl-capped oligothiophenes. CR CHIM 2014. [DOI: 10.1016/j.crci.2013.11.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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50
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Nikoofard H, Amin AH, Khorrami M. Molecular structure and electronic properties of a series of oligoalkylthiophenes: A theoretical investigation. CR CHIM 2013. [DOI: 10.1016/j.crci.2013.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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