1
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Orosz JM, Ujj D, Kasal P, Benkovics G, Bálint E. Continuous flow synthesis of 6-monoamino-6-monodeoxy-β-cyclodextrin. Beilstein J Org Chem 2023; 19:294-302. [PMID: 36925564 PMCID: PMC10012048 DOI: 10.3762/bjoc.19.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 02/21/2023] [Indexed: 03/11/2023] Open
Abstract
The first continuous flow method was developed for the synthesis of 6-monoamino-6-monodeoxy-β-cyclodextrin starting from native β-cyclodextrin through three reaction steps, such as monotosylation, azidation and reduction. All reaction steps were studied separately and optimized under continuous flow conditions. After the optimization, the reaction steps were coupled in a semi-continuous flow system, since a solvent exchange had to be performed after the tosylation. However, the azidation and the reduction steps were compatible to be coupled in one flow system obtaining 6-monoamino-6-monodeoxy-β-cyclodextrin in a high yield. Our flow method developed is safer and faster than the batch approaches.
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Affiliation(s)
- János Máté Orosz
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Dóra Ujj
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Petr Kasal
- Department of Organic Chemistry, Faculty of Science, Charles University, 128 43 Prague 2, Czech Republic
| | - Gábor Benkovics
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
| | - Erika Bálint
- Department of Organic Chemistry and Technology, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary
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2
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Design of thiacalixarene linked triphenylene based room temperature columnar LCs with self-assembly and dielectric property: Impact of flexibility on molecular systems. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Kasal P, Jindřich J. Mono-6-Substituted Cyclodextrins-Synthesis and Applications. Molecules 2021; 26:5065. [PMID: 34443653 PMCID: PMC8400779 DOI: 10.3390/molecules26165065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 08/04/2021] [Accepted: 08/18/2021] [Indexed: 12/03/2022] Open
Abstract
Cyclodextrins are well known supramolecular hosts used in a wide range of applications. Monosubstitution of native cyclodextrins in the position C-6 of a glucose unit represents the simplest method how to achieve covalent binding of a well-defined host unit into the more complicated systems. These derivatives are relatively easy to prepare; that is why the number of publications describing their preparations exceeds 1400, and the reported synthetic methods are often very similar. Nevertheless, it might be very demanding to decide which of the published methods is the best one for the intended purpose. In the review, we aim to present only the most useful and well-described methods for preparing different types of mono-6-substituted derivatives. We also discuss the common problems encountered during their syntheses and suggest their optimal solutions.
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Affiliation(s)
| | - Jindřich Jindřich
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic;
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4
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Sharma VS, Sharma AS, Ganga VSR, Shrivastav PS, Shah PA, Agarwal N. Room-temperature blue-light-emitting liquid crystalline materials based on phenanthroimidazole-substituted carbazole derivatives. NEW J CHEM 2021. [DOI: 10.1039/d1nj04234c] [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
We report disc-shaped materials with the A–Π–D molecular architecture based on the phenanthroimidazole-linked carbazole group as blue-light-emitting materials with room-temperature liquid crystalline properties.
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Affiliation(s)
- Vinay S. Sharma
- Department of Chemistry, School of Science, Gujarat University, Ahmedabad, Gujarat, India
| | - Anuj S. Sharma
- Department of Chemistry, School of Science, Gujarat University, Ahmedabad, Gujarat, India
| | - Venkata Subba Rao Ganga
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology (CSIR-IICT), Hyderabad, India
| | - Pranav S. Shrivastav
- Department of Chemistry, School of Science, Gujarat University, Ahmedabad, Gujarat, India
| | - Priyanka A. Shah
- Department of Chemistry, School of Science, Gujarat University, Ahmedabad, Gujarat, India
| | - Nikhil Agarwal
- Department of Chemistry, Faculty of Basic and Applied Science, Madhav University, Sirohi, Rajasthan, India
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5
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Sharma VS, Sharma AS, Worthington SJB, Shah PA, Shrivastav PS. Columnar self-assembly, electrochemical and luminescence properties of basket-shaped liquid crystalline derivatives of Schiff-base-moulded p-tert-butyl-calix[4]arene. NEW J CHEM 2020. [DOI: 10.1039/d0nj04148c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of blue-light emitting supramolecular basket-shaped liquid crystalline compounds based on p-tert-butyl-calix[4]arene core to form self-assembly and columnar hexagonal phase.
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Affiliation(s)
- Vinay S. Sharma
- Department of Chemistry
- Faculty of Basic and Applied Science
- Madhav University
- Sirohi
- India
| | - Anuj S. Sharma
- Department of Chemistry
- School of Science
- Gujarat University
- Ahmedabad
- India
| | | | - Priyanka A. Shah
- Department of Chemistry
- School of Science
- Gujarat University
- Ahmedabad
- India
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6
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Sharma VS, Sharma AS, Shah AP, Shah PA, Shrivastav PS, Athar M. New Class of Supramolecular Bowl-Shaped Columnar Mesogens Derived from Thiacalix[4]arene Exhibiting Gelation and Organic Light-Emitting Diodes Applications. ACS OMEGA 2019; 4:15862-15872. [PMID: 31592456 PMCID: PMC6776968 DOI: 10.1021/acsomega.9b01776] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
A new class of blue light-emitting bowl-shaped mesogens with the thiacalix[4]arene core appended with 1,3,4-thiadiazole derivatives having peripheral alkoxy side chains have been synthesized and well characterized. The liquid crystalline behavior of present synthesized derivatives was examined by optical polarizing microscopy, differential scanning calorimetry, and X-ray diffraction studies. It was observed that these thiacalix[4]arene derivatives were capable of stabilizing the observed Colh phase with a higher temperature range. The cone-shaped thiacalix[4]arene-based liquid crystals with peripheral alkoxy side chains able to pack into the columns with enriched intermolecular interactions and thermal behavior. All derivatives showed blue luminescence in solution, solid thin-film, and gelation state. The hexagonal columnar phase and emissive nature of thiadiazole-based thiacalixarene compounds having xerogel behavior make them favorable in the application of emissive electronic display devices. The electrochemical properties of these thiacalixarene-based compounds demonstrate the effect of alkyl side chain on the highest occupied molecular orbital-lowest unoccupied molecular orbital energy levels and also exhibited lower electron band gaps. The electroluminescence behavior of the compound 10c was examined as emissive layers in the fabrication of organic light-emitting diodes.
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Affiliation(s)
- Vinay S. Sharma
- Department
of Chemistry, Faculty of Basic and Applied Sciences, Madhav University, Abu
Road, Sirohi 307026, Rajasthan, India
| | - Anuj S. Sharma
- Department
of Chemistry, School of Science, Gujarat
University, Ahmedabad 380009, Gujarat, India
| | - Akshara P. Shah
- Department
of Chemistry, Mumbai University, Santacruz, Mumbai 400
098, India
| | - Priyanka A. Shah
- Department
of Chemistry, School of Science, Gujarat
University, Ahmedabad 380009, Gujarat, India
| | - Pranav S. Shrivastav
- Department
of Chemistry, School of Science, Gujarat
University, Ahmedabad 380009, Gujarat, India
| | - Mohd Athar
- Department
of Chemistry, Central University of Gujarat, Ghandhinagar 382030, India
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7
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Sharma VS, Shah AP, Sharma AS. A new class of supramolecular liquid crystals derived from azo calix[4]arene functionalized 1,3,4-thiadiazole derivatives. NEW J CHEM 2019. [DOI: 10.1039/c8nj04997a] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new class of bowl-shaped supramolecular liquid crystals (LCs) is described derived from calix[4]arene substituted with 1,3,4-thiadiazole derivatives, inbuilt with Schiff base and ester on the lower rim and with an azo group on the upper rim with an alkyl side chain (–OC3H7, –OC8H17).
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Affiliation(s)
- Vinay S. Sharma
- Department of Chemistry
- Faculty of Basic and Applied Science
- Madhav University
- Sirohi
- India
| | | | - Anuj S. Sharma
- Department of Chemistry
- School of Science
- Gujarat University
- Ahmedabad
- India
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8
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Sharma VS, Shah AP, Sharma AS, Athar M. Columnar self-assembly, gelation and electrochemical behavior of cone-shaped luminescent supramolecular calix[4]arene LCs based on oxadiazole and thiadiazole derivatives. NEW J CHEM 2019. [DOI: 10.1039/c8nj04922j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A new class of blue light-emitting supramolecular liquid crystalline cone or bowl-shaped compounds were synthesized from substituted 1,3,4-oxadiazoles and 1,3,4-thiadiazoles with calix[4]arene derivatives.
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Affiliation(s)
- Vinay S. Sharma
- Department of Chemistry
- Faculty of Basic and Applied Science
- Madhav University
- Sirohi
- India
| | | | - Anuj S. Sharma
- Department of Chemistry
- School of Science
- Gujarat University
- Ahmedabad
- India
| | - Mohd Athar
- CCG@CUG
- School of Chemical Sciences
- Central University of Gujarat
- Ghandhinagar
- India
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9
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Sharma VS, Singh HK, Sharma AS, Shah AP, Shah PA. Bowl-shaped fluorescent liquid crystals derived from 4-tert butyl calix[4]arene and trans cinnamic acid derivatives. NEW J CHEM 2019. [DOI: 10.1039/c9nj03097b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of bowl-shaped molecules with a calix[4]arene rigid core appended by four-side and two-side substitution with trans 4-n-alkoxy cinnamic acid has been synthesized and well characterized.
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Affiliation(s)
- Vinay S. Sharma
- Department of Chemistry
- Faculty of Basic and Applied Science
- Madhav University
- Sirohi
- India
| | - Hemant Kumar Singh
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati-781039
- India
| | - Anuj S. Sharma
- Department of Chemistry, School of Science, Gujarat University
- Ahmedabad
- India
| | | | - Priyanka A. Shah
- Department of Chemistry, School of Science, Gujarat University
- Ahmedabad
- India
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10
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Sharma VS, Sharma AS, Vekariya RH. Columnar self-assembly of bowl-shaped luminscent oxadiazole calix[4]arene derivatives. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.09.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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11
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Chen S, Guo H, Geng X, Yang F. Bowl liquid crystal based on cyclotriveratrylene derivatives with multiple triphenylene units: The influences of the numbers of triphenylene units on mesomorphic behaviors. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2017.12.147] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Sharma VS, Sharma AS, Vekariya RH. Columnar self-assembly of bowl shaped fluorescent liquid crystals based on calix[4]arene with Schiff base units. NEW J CHEM 2018. [DOI: 10.1039/c8nj01721b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new family of bowl-shaped molecules with a calix[4]arene rigid core and appended on four-sides, that display a wide range of hexagonal columnar phases, has been synthesised and well characterized.
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Affiliation(s)
- Vinay S. Sharma
- Department of Chemistry
- Faculty of Basic and Applied Science
- Madhav University
- Sirohi
- India
| | - Anuj S. Sharma
- Department of Chemistry
- School of Science
- Gujarat University
- Ahmedabad
- India
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13
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Sharma VS, Singh HK, Vekariya RH, Sharma AS, Patel RB. Mesomorphic Properties of Novel Supramolecular Calix[4]arene Schiff Base Ester Derivatives: Design and Biological Investigation. ChemistrySelect 2017. [DOI: 10.1002/slct.201701306] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Vinay S. Sharma
- Chemistry Department; K. K. Shah Jarodwala Maninagar Science College; Gujarat University; Ahmedabad 380008, Gujarat India
| | - Hemant K. Singh
- Department of Chemistry; Institute of Science; Banaras Hindu University; Varanasi, Uttar Pradesh India
| | - Rajesh H. Vekariya
- Department of Chemistry; School of Science; Gujarat University; Ahmedabad, Gujarat India
| | - Anuj S. Sharma
- Department of Chemistry; School of Science; Gujarat University; Ahmedabad, Gujarat India
| | - Roshan B. Patel
- Chemistry Department; K. K. Shah Jarodwala Maninagar Science College; Gujarat University; Ahmedabad 380008, Gujarat India
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14
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Champagne PL, Ester D, Ward S, Williams VE, Ling CC. A Family of Amphiphilic Cyclodextrin Liquid Crystals Governed by Dipole-Dipole Interactions. Chempluschem 2016; 82:423-432. [PMID: 31962020 DOI: 10.1002/cplu.201600556] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Indexed: 11/11/2022]
Abstract
A novel family of amphiphilic cyclodextrin(CD)-based liquid crystals that bear O-acetylated oligoethylene glycol chains at the secondary face is reported. Unlike most of the previously reported liquid crystals (LC) based on chemically modified CDs, which depend on H-bonding as the primary intermolecular forces, the present CD derivatives self-assemble into highly ordered smectic liquid crystal phases via the weaker dipole-dipole intermolecular interactions. The obtained materials are found to display much improved properties such as improved thermostability, reduced clearing temperatures, and better fluidity. The present work opens up new possibilities to design CD-based LC materials.
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Affiliation(s)
- Pier-Luc Champagne
- Alberta Glycomics Centre, Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
| | - David Ester
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
| | - Sandra Ward
- Department of Chemistry & Biochemistry, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Vance E Williams
- Department of Chemistry, Simon Fraser University, 8888 University Drive, Burnaby, BC, V5A 1S6, Canada
| | - Chang-Chun Ling
- Alberta Glycomics Centre, Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
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15
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Li X, Li B, Chen L, Hu J, Wen C, Zheng Q, Wu L, Zeng H, Gong B, Yuan L. Liquid-crystalline mesogens based on cyclo[6]aramides: distinctive phase transitions in response to macrocyclic host-guest interactions. Angew Chem Int Ed Engl 2016; 54:11147-52. [PMID: 26352024 DOI: 10.1002/anie.201505278] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Indexed: 11/12/2022]
Abstract
Producing macrocyclic mesogens that are responsive to guest encapsulation presents a significant challenge. Cyclo[6]aramides, a type of macrocycle with a hydrogen-bond-constrained backbone, exhibit thermotropic lamellar, discotic nematic, hexagonal, and rectangular columnar mesophases over a considerably wide temperature range, including at room temperature. Additionally, cyclo[6]aramides show unusual mesophase transitions from lamellar to hexagonal columnar phase mediated by macrocyclic host-guest (H-G) interactions between the macrocycles and alkylammonium salts. The phase transition, triggered by an organic guest engaging in H-G interactions with a macrocyclic cavity, provides a novel strategy for manipulating the properties of liquid-crystalline materials. The crystal structure of a homologous cyclo[6]aramide reveals a disk-shaped, near-planar molecular backbone that facilitates intermolecular π-π stacking and leads to columnar assembly.
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Affiliation(s)
- Xiaowei Li
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064 (China)
| | - Bao Li
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012 (China)
| | - Long Chen
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064 (China)
| | - Jinchuan Hu
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064 (China)
| | - Chengdanyang Wen
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064 (China)
| | - Qingdong Zheng
- State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences, Fuzhou, Fujian 350002 (China)
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012 (China)
| | - Huaqiang Zeng
- Institute of Bioengineering and Nanotechnology, 31 Biopolis Way, The Nanos, Singapore 138669 (Singapore)
| | - Bing Gong
- Department of Chemistry, The State University of New York, Buffalo, NY 14260 (USA).
| | - Lihua Yuan
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064 (China).
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16
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Guerra S, Nguyen TLA, Furrer J, Nierengarten JF, Barberá J, Deschenaux R. Liquid-Crystalline Dendrimers Designed by Click Chemistry. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00432] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sebastiano Guerra
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
| | - Thi Le Anh Nguyen
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
| | - Julien Furrer
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
| | - Jean-François Nierengarten
- Laboratoire
de Chimie des Matériaux Moléculaires, Université
de Strasbourg et CNRS (UMR 7509), Ecole Européenne de Chimie, Polymères et Matériaux, 25 rue Becquerel, 67087 Strasbourg, Cedex
2, France
| | - Joaquín Barberá
- Departamento
de Química Orgánica, Facultad de Ciencias-Instituto
de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Robert Deschenaux
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
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17
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Zhang X, Guo H, Yang F, Yuan J. Ion complexation-controlled columnar mesophase of calix[4]arene–cholesterol derivatives with Schiff-base bridges. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Novel gallic-calixarene liquid crystals: syntheses and conformation influences on mesomorphism. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.093] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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19
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Liquid-Crystalline Mesogens Based on Cyclo[6]aramides: Distinctive Phase Transitions in Response to Macrocyclic Host-Guest Interactions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201505278] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Guo H, Yang F, Liu W, Lai J. Novel supramolecular liquid crystals: synthesis and mesomorphic properties of calix[4]arene-cholesterol derivatives. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.12.137] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Kalpana V, Rajavelu K, Rajakumar P. Synthesis, Photo-physical and Electrochemical Properties of Dendrimers with (S)-BINOL Core and Benzothiazole Surface Unit. Aust J Chem 2015. [DOI: 10.1071/ch13693] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chiral dendritic architectures with benzothiazole as surface group, 1,2,3-triazole as a bridging unit, and (S)-BINOL (1,1-bi-2-naphthol) as a core unit were synthesised in good yields via a convergent synthetic strategy. The chiroptical properties of the dendrimers revealed that the specific rotation increased in the order of dendrimers 4 > 3 > 2 > 1. All the dendrimers showed excellent optical and electrochemical response, and hence would find application in dye-sensitised solar cells.
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