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Guo P, Gan X, Guan S, Gao P, Wang Q, Shi F, Zhou Y, Wang C, Xia Y. Effect of fluorine on the photovoltaic properties of 2,1,3-benzothiadiazole-based alternating conjugated polymers by changing the position and number of fluorine atoms. RSC Adv 2024; 14:11659-11667. [PMID: 38605895 PMCID: PMC11007488 DOI: 10.1039/d4ra01104j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024] Open
Abstract
Fluorination is one of the most effective ways to manipulate molecular packing, optical bandgap and molecular energy levels in organic semiconductor materials. In this work, different number of fluorine atoms was introduced into the acceptor moiety 2,2'-dithiophene linked 2,1,3-benzothiadiazole, utilizing the alkylthiophene modified dithieno[2,3-d:2',3'-d']benzo[1,2-b:4,5-b] (DTBDT) as the donor unit, three polymers: PDTBDT-0F-BTs, PDTBDT-2F-BTs and PDTBDT-6F-FBTs were synthesized. With the number of fluorine atoms in each repeat unit of polymers varying from 0 to 2 and then up to 6, PDTBDT-0F-BTs, PDTBDT-2F-BTs and PDTBDT-6F-FBTs exhibited gradually downshifted energy levels and improved dielectric constants (εr) from 3.4 to 4.3 to 5.8, further successively increased charge transport mobilities. As a result, the power conversion efficiency (PCE) of the bulk heterojunction organic photovoltaic devices (BHJ-OPV) from the blend films of aforementioned polymers paired with PC71BM were gradually increased from 1.69 for PDTBDT-0F-BTs to 1.89 for PDTBDT-2F-BTs and then to 5.28 for PDTBDT-6F-FBTs. The results show that the continuous insertion of fluorine atoms into the repeating units of the benzothiadiazole conjugated polymer leads to the deepening of HOMO energy level, the increase of εr and the increase of charge mobility, which improve the efficiency of charge transfer and electron collection, thus improving the photovoltaic performance of BHJ-OPV.
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Affiliation(s)
- Pengzhi Guo
- National Engineering Research Center for Technology and Equipment of Green Coating, Lanzhou Jiaotong University Lanzhou 730070 China +86-0931-495-6058
| | - Xuemei Gan
- National Engineering Research Center for Technology and Equipment of Green Coating, Lanzhou Jiaotong University Lanzhou 730070 China +86-0931-495-6058
| | - Sheng Guan
- National Engineering Research Center for Technology and Equipment of Green Coating, Lanzhou Jiaotong University Lanzhou 730070 China +86-0931-495-6058
| | - Peili Gao
- Organic Semiconductor Materials and Applied Technology Research Center of Gansu Province, School of Material Science and Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
| | - Qian Wang
- Organic Semiconductor Materials and Applied Technology Research Center of Gansu Province, School of Material Science and Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
| | - Furong Shi
- Organic Semiconductor Materials and Applied Technology Research Center of Gansu Province, School of Material Science and Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
| | - Yuan Zhou
- National Engineering Research Center for Technology and Equipment of Green Coating, Lanzhou Jiaotong University Lanzhou 730070 China +86-0931-495-6058
| | - Chenglong Wang
- National Engineering Research Center for Technology and Equipment of Green Coating, Lanzhou Jiaotong University Lanzhou 730070 China +86-0931-495-6058
| | - Yangjun Xia
- Organic Semiconductor Materials and Applied Technology Research Center of Gansu Province, School of Material Science and Engineering, Lanzhou Jiaotong University Lanzhou 730070 China
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2
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Forti G, Pankow RM, Qin F, Cho Y, Kerwin B, Duplessis I, Nitti A, Jeong S, Yang C, Facchetti A, Pasini D, Marks TJ. Anthradithiophene (ADT)-Based Polymerized Non-Fullerene Acceptors for All-Polymer Solar Cells. Chemistry 2023; 29:e202300653. [PMID: 37191934 DOI: 10.1002/chem.202300653] [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: 02/28/2023] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/17/2023]
Abstract
Realizing efficient all-polymer solar cell (APSC) acceptors typically involves increased building block synthetic complexity, hence potentially unscalable syntheses and/or prohibitive costs. Here we report the synthesis, characterization, and implementation in APSCs of three new polymer acceptors P1-P3 using a scalable donor fragment, bis(2-octyldodecyl)anthra[1,2-b : 5,6-b']dithiophene-4,10-dicarboxylate (ADT) co-polymerized with the high-efficiency acceptor units, NDI, Y6, and IDIC. All three copolymers have comparable photophysics to known polymers; however, APSCs fabricated by blending P1, P2 and P3 with donor polymers PM5 and PM6 exhibit modest power conversion efficiencies (PCEs), with the champion P2-based APSC achieving PCE=5.64 %. Detailed morphological and microstructural analysis by AFM and GIWAXS reveal a non-optimal APSC active layer morphology, which suppresses charge transport. Despite the modest efficiencies, these APSCs demonstrate the feasibility of using ADT as a scalable and inexpensive electron rich/donor building block for APSCs.
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Affiliation(s)
- Giacomo Forti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
- Department of Chemistry, Center for Light Energy-Activated Redox Processes and the, Materials Research Center, Northwestern University, 2145 Sheridan Road, 60208, Evanston, Illinois, USA
| | - Robert M Pankow
- Department of Chemistry, Center for Light Energy-Activated Redox Processes and the, Materials Research Center, Northwestern University, 2145 Sheridan Road, 60208, Evanston, Illinois, USA
| | - Fei Qin
- Department of Chemistry, Center for Light Energy-Activated Redox Processes and the, Materials Research Center, Northwestern University, 2145 Sheridan Road, 60208, Evanston, Illinois, USA
| | - Yongjoon Cho
- Department of Chemistry, Center for Light Energy-Activated Redox Processes and the, Materials Research Center, Northwestern University, 2145 Sheridan Road, 60208, Evanston, Illinois, USA
| | - Brendan Kerwin
- Department of Chemistry, Center for Light Energy-Activated Redox Processes and the, Materials Research Center, Northwestern University, 2145 Sheridan Road, 60208, Evanston, Illinois, USA
| | - Isaiah Duplessis
- Department of Chemistry, Center for Light Energy-Activated Redox Processes and the, Materials Research Center, Northwestern University, 2145 Sheridan Road, 60208, Evanston, Illinois, USA
| | - Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Seonghun Jeong
- School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, 44919, Ulsan, South Korea
| | - Changduk Yang
- School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, 44919, Ulsan, South Korea
- Graduate School of Carbon Neutrality, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulju-gun, 44919, Ulsan, South Korea
| | - Antonio Facchetti
- Department of Chemistry, Center for Light Energy-Activated Redox Processes and the, Materials Research Center, Northwestern University, 2145 Sheridan Road, 60208, Evanston, Illinois, USA
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive, 30332, Atlanta, Georgia, USA
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Viale Taramelli 12, 27100, Pavia, Italy
| | - Tobin J Marks
- Department of Chemistry, Center for Light Energy-Activated Redox Processes and the, Materials Research Center, Northwestern University, 2145 Sheridan Road, 60208, Evanston, Illinois, USA
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3
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Chmovzh TN, Kudryashev TA, Alekhina DA, Rakitin OA. Palladium-Catalyzed Direct (Het)arylation Reactions of Benzo[1,2-d:4,5-d']bis([1,2,3]thiadiazole and 4,8-Dibromobenzo[1,2-d:4,5-d']bis([1,2,3]thiadiazole). Molecules 2023; 28:molecules28093977. [PMID: 37175386 PMCID: PMC10180130 DOI: 10.3390/molecules28093977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 04/26/2023] [Accepted: 05/06/2023] [Indexed: 05/15/2023] Open
Abstract
Palladium-catalyzed direct (het)arylation reactions of strongly electron-withdrawing tricyclic benzo[1,2-d:4,5-d']bis([1,2,3]thiadiazole) and its 4,8-dibromo derivative were studied; the conditions for the selective formation of mono- and bis-aryl derivatives were found. The reaction of 4,8-dibromobenzo[1,2-d:4,5-d']bis([1,2,3]thiadiazole) with thiophenes in the presence of palladium acetate as a catalyst and potassium pivalate as a base, depending on the conditions used, selectively gave both mono- and bis-thienylated benzo-bis-thiadiazoles in low to moderate yields; arenes were found to be inactive in these reactions. It was discovered that direct C-H arylation of benzo[1,2-d:4,5-d']bis([1,2,3]thiadiazole with bromo(iodo)arenes and -thiophenes in the presence of Pd(OAc)2 and di-tert-butyl(methyl)phosphonium tetrafluoroborate salt is a powerful tool for the selective formation of 4-mono- and 4,8-di(het)arylated benzo-bis-thiadiazoles. Oxidative double C-H hetarylation of benzo[1,2-d:4,5-d']bis([1,2,3]thiadiazole with thiophenes in the presence of Pd(OAc)2 and silver (I) oxide in DMSO was successfully employed to prepare bis-thienylbenzo-bis-thiadiazoles in moderate yields.
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Affiliation(s)
- Timofey N Chmovzh
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
- Nanotechnology Education and Research Center, South Ural State University, 454080 Chelyabinsk, Russia
| | - Timofey A Kudryashev
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
- Department of Chemistry, Moscow State University, 119899 Moscow, Russia
| | - Daria A Alekhina
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
- Higher Chemical College, Mendeleev University of Chemical Technology of Russia, 125047 Moscow, Russia
| | - Oleg A Rakitin
- N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 119991 Moscow, Russia
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Lu D, Zou X, Ye L. The introduction of the disconnection approach into polymer synthesis. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.6050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
Affiliation(s)
- Dawei Lu
- College of Materials Science and Engineering Beijing University of Chemical Technology Beijing 102299 China
| | - Xudong Zou
- College of Chemistry Beijing University of Chemical Technology Beijing 102299 China
| | - Liqin Ye
- College of Materials Science and Engineering Beijing University of Chemical Technology Beijing 102299 China
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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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6
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Lin L, Hsu C, Lee K, Lin M, Peng Y, Liu C. New Benzotrithiophene‐Based Hole‐Transporting Materials for Perovskite Solar Cells: Succinct Synthesis and PCE Improvement. ChemistrySelect 2022. [DOI: 10.1002/slct.202202472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Li Lin
- Department of Chemical and Materials Engineering National Central University Jhongli District Taoyuan City 320 Taiwan
| | - Chia‐Chi Hsu
- Department of Chemical and Materials Engineering National Central University Jhongli District Taoyuan City 320 Taiwan
| | - Kun‐Mu Lee
- Department of Chemical & Materials Engineering, Chang Gung University/Department of Pediatrics Chang Gung Memorial Hospital, Linkou Taoyuan City 333 Taiwan
| | - Mei‐Yu Lin
- Department of Chemical and Materials Engineering National Central University Jhongli District Taoyuan City 320 Taiwan
| | - Yi‐Kai Peng
- Department of Chemical and Materials Engineering National Central University Jhongli District Taoyuan City 320 Taiwan
| | - Ching‐Yuan Liu
- Department of Chemical and Materials Engineering National Central University Jhongli District Taoyuan City 320 Taiwan
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7
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Delabie J, De Winter J, Gerbaux P, Verbiest T, Koeckelberghs G. Influence of the degree of polymerization and surface curvature on the supramolecular organization of fixated polythiophenes. POLYMER 2022. [DOI: 10.1016/j.polymer.2022.124846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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A Sustainable Synthetic Approach to the Indaceno[1,2-b:5,6-b′]dithiophene (IDT) Core through Cascade Cyclization–Deprotection Reactions. CHEMISTRY 2022. [DOI: 10.3390/chemistry4010018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Bulk heterojunction organic solar cells (BHJs) are competitive within the emerging photovoltaic technologies for solar energy conversion because of their unique advantages. Their development has been boosted recently by the introduction of nonfullerene electron acceptors (NFAs), to be used in combination with a polymeric electron donor in the active layer composition. Many of the recent advances in NFAs are attributable to the class of fused-ring electron acceptors (FREAs), which is now predominant, with one of the most notable examples being formed with a fused five-member-ring indaceno[1,2-b:5,6-b′]dithiophene (IDT) core. Here, we propose a novel and more sustainable synthesis for the IDT core. Our approach bypasses tin derivatives needed in the Stille condensation, whose byproducts are toxic and difficult to dispose of, and it makes use of cascade reactions, effectively reducing the number of synthetic steps.
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9
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Zappia S, Veronese L, Forni A, Dattilo S, Samperi F, Dagar J, Brown TM, Panigati M, Destri S. Carbazole-Pyridazine copolymers and their rhenium complexes: effect of the molecular structure on the electronic properties. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Tu CH, Lee KM, Chen JH, Chiang CH, Hsu SC, Hsu MW, Liu CY. Pd-Free synthesis of dithienothiophene-based oligoaryls for effective hole-transporting materials by optimized Cu-catalyzed annulation and direct C–H arylation. Org Chem Front 2022. [DOI: 10.1039/d2qo00187j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time, [Cu]-catalyzed annulation and direct C–H/C–I couplings were used as key transformations to access new DTT-based hole-transporting materials (HTMs), CHC05–07. Perovskite solar cells with CHC07 display PCEs of up to 14.7%.
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Affiliation(s)
- Chen-Hsin Tu
- Department of Chemical and Materials Engineering, Central University, Jhongli District, Taoyuan 320, Taiwan, China
| | - Kun-Mu Lee
- Department of Chemical and Materials Engineering, Chang Gung University/Department of Pediatrics, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan, China
| | - Jui-Heng Chen
- Department of Chemical and Materials Engineering, Central University, Jhongli District, Taoyuan 320, Taiwan, China
| | - Chia-Hua Chiang
- Department of Chemical and Materials Engineering, Central University, Jhongli District, Taoyuan 320, Taiwan, China
| | - Shen-Chieh Hsu
- Department of Chemical and Materials Engineering, Central University, Jhongli District, Taoyuan 320, Taiwan, China
| | - Ming-Wei Hsu
- Department of Chemical and Materials Engineering, Central University, Jhongli District, Taoyuan 320, Taiwan, China
| | - Ching-Yuan Liu
- Department of Chemical and Materials Engineering, Central University, Jhongli District, Taoyuan 320, Taiwan, China
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Gouda MA, Abu-Hashem AA, Abdelgawad AAM. Thieno[3,2-c] quinoline Heterocyclic Synthesis and Reactivity part (VI). MINI-REV ORG CHEM 2021. [DOI: 10.2174/1570193x18666211004102537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
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The biological and medicinal properties of thieno[3, 2-c] quinoline have prompted enormous research aimed at developing synthetic routes to these systems. This review focuses on the chemical properties associated with this system. The most-reported reactions are Bischler-Napieralski, Suzuki−Miyaura−Schlüter, Pictet-Spengler, Stille coupling. Friedlander and Beckmann rearrangement reaction.
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Affiliation(s)
- Moustafa A. Gouda
- Department of Chemistry, Faculty of Science and Arts, Taibah University, Ulla, Medina, Saudi Arabia
| | - Ameen A. Abu-Hashem
- Photochemistry Department (Heterocyclic Unit), National Research Centre, Dokki, Giza 12622, Egypt
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Dallemagne P, Zipfel P, Lalut J, Sopková-de Oliveira Santos J, Rochais C. Aminothiaindanone as an Accessible Scaffold for a Three-Point Chemical Diversity. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1523-1409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
AbstractAminothiaindanone heterocycle appears to be a scaffold of interest in medicinal chemistry. To increase the chemical diversity in this series, the introduction of three-point chemical diversity on the cyclopenta[b]thiophen-4-one scaffold was explored. About thirty newly functionalized thiophene-containing bicycles were obtained using various chemical reactions, paving the way for novel possibilities in medicinal chemistry projects.
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Tomar R, Jain S, Yadav P, Bajaj T, Mohajer F, Ziarani GM. Conversion of Limonene over Heterogeneous Catalysis: An Overview. Curr Org Synth 2021; 19:414-425. [PMID: 34429049 DOI: 10.2174/1570179418666210824101837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 05/07/2021] [Accepted: 06/07/2021] [Indexed: 11/22/2022]
Abstract
The natural terpene limonene is widely found in nature. The (R)-limonene (the most abundant enantiomer) is present in the essential oils of lemon, orange, and other citrus fruits, while the (S)-limonene is found in peppermint and the racemate in turpentine oil. Limonene is a low-cost, low toxicity biodegradable terpene present in agricultural wastes derived from citrus peels. The products obtained from the conversion of limonene are valuable compounds widely used as additives for food, cosmetics, or pharmaceuticals. The conversion of limonene to produce different products has been the subject of intense research, mainly with the objective to improve catalytic systems. This review focused on the application of heterogeneous catalysts in the catalytic conversion of limonene.
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Affiliation(s)
- Ravi Tomar
- Department of Chemistry, Faculty of Science, SGT University, Gurugram, Haryana-122505. India
| | - Swati Jain
- Department of Chemistry, University of Delhi, Delhi-110007. India
| | - Purnima Yadav
- Department of Chemistry, University of Delhi, Delhi-110007. India
| | - Tanima Bajaj
- Department of Chemistry, Faculty of Science, SGT University, Gurugram, Haryana-122505. India
| | - Fatemeh Mohajer
- Department of Chemistry, University of Delhi, Delhi-110007. India
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Ahmad S, Akhtar R, Zahoor AF. Comprehensive Account on the Synthesis of (-)-Balanol and its Analogues. Curr Org Synth 2021; 19:56-85. [PMID: 34370642 DOI: 10.2174/1570179418666210809131917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 06/17/2021] [Accepted: 06/25/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND A variety of diseases have been associated with hyperactivation of protein kinase C (PKC) enzymes such as cancer, diabetes, asthma, cardiovascular and central nervous system disorders. There is a dire need to selectively inhibit these enzymes by synthesizing new potent inhibitors. Balanol, a fungal metabolite belonging to the PKC inhibitor family, is especially included in this aspect. Tremendous effort has been put towards the synthesis of balanol by different research groups. OBJECTIVE The aim of this review is to provide a detailed description of synthetic approaches adopted for the synthesis of key fragments of balanol (azepane and benzophenone). All the factors that resulted in excellent yield and high enantioselectivity have also been mentioned. CONCLUSION It has been shown throughout this review that the synthesis of hexahydroazepine and benzophenone cores of balanol was achieved by employing a variety of important key steps with commercially available starting precursors, which make this total synthesis more valuable. Moreover, this article provides ideas to the synthetic as well as pharmaceutical chemists for the synthesis of (-)-balanol and its analogues.
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Affiliation(s)
- Sajjad Ahmad
- Department of Chemistry, University of Engineering and Technology Lahore, Faisalabad Campus, 38000-Faisalabad, Pakistan
| | - Rabia Akhtar
- Department of Chemistry, Government College University Faisalabad, 38000-Faisalabad, Pakistan
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, 38000-Faisalabad, Pakistan
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15
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Invernizzi F, Nitti A, Pasini D. Regioselective Pummerer rearrangement in [2.2]paracyclophanes. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2020.1825434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Fabio Invernizzi
- Department of Chemistry and INSTM Research Unit, University of Pavia, Pavia, Italy
| | - Andrea Nitti
- Department of Chemistry and INSTM Research Unit, University of Pavia, Pavia, Italy
| | - Dario Pasini
- Department of Chemistry and INSTM Research Unit, University of Pavia, Pavia, Italy
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16
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Kuwabara J, Kanbara T. Step-Economical Synthesis of Conjugated Polymer Materials Composed of Three Components: Donor, Acceptor, and π Units. Macromol Rapid Commun 2020; 42:e2000493. [PMID: 33225550 DOI: 10.1002/marc.202000493] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 10/07/2020] [Indexed: 01/08/2023]
Abstract
Conjugated polymers have immense potential for their use as semiconducting materials in organic optoelectronic devices. The improvement of synthetic methods for conjugated polymers is important for the practical application of conjugated polymers. For mass production, synthetic methods must be developed by considering the concerns regarding cost and environment. Reduction in the number of synthetic steps is an efficient approach to address these concerns. The utilization of direct CH functionalization is a reasonable strategy in monomer and polymer syntheses, because the prefunctionalization steps for CC bond formation can be eliminated. This review summarizes the recent developments in the efficient syntheses of conjugated polymers as well as their monomers via direct arylation (CH/CX coupling) and cross-dehydrogenative coupling (CH/CH coupling) reactions.
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Affiliation(s)
- Junpei Kuwabara
- Tsukuba Research Center for Energy Materials Science (TREMS), Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Takaki Kanbara
- Tsukuba Research Center for Energy Materials Science (TREMS), Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
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