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Vanishree Bhat S, Swamynathan K, Kumar S. Synthesis and mesomorphic characterization of novel liquid crystals derived from bioactive natural sterols. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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2
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Pei Q, Ding A, Wu J. Supramolecular Assemblies Based on Intramolecular Three-Center Hydrogen Bond and their Applications. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202005053] [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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3
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Guerrero-Luna G, Hernández-Linares MG, Bernès S, Carrasco-Carballo A, Montalvo-Guerrero D, Fernández-Herrera MA, Sandoval-Ramírez J. Mesoscale Assembly of Bisteroidal Esters from Terephthalic Acid. Molecules 2020; 25:molecules25051213. [PMID: 32182644 PMCID: PMC7179421 DOI: 10.3390/molecules25051213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/24/2020] [Accepted: 03/01/2020] [Indexed: 11/16/2022] Open
Abstract
A new series of bisteroidal esters was synthesized using a spacer group, sterols and sapogenins as substrates. Steroidal dimers were prepared in high yields employing diesters of terephthalic acid as linkages at the 3β, 3'β steroidal positions. In all attempts to crystallize bisteroids, it was observed that the compounds tended to self-organize in solution, which was detected when employing various solvent systems. The non-covalent interactions (van der Waals) of the steroidal moieties of this series of symmetrical bisteroids, the polarity of the solvents systems, and the different solubilities of the bisteroid aggregates, indeed induce the molecules to self-assemble into supramolecular structures with well-defined organization. Our results show that the self-assembled structures for the bisteroidal derivatives depend on the solvent system used: with hexane/EtOAc, membrane-shaped structures were obtained, while pure EtOAc afforded strand-shaped arrangements. In the CHCl3/CH3OH system, thin strands were formed, since van der Waals interactions are lowered in this system, as a consequence of the increased solubility of the bisteroids in CHCl3. Based on the characterization by SEM and XRD, we show evidence that the phenomenon of self-assembly of bisteroids occurs presenting different morphologies depending on the solvent used. The new steroidal dimer derivatives were characterized by NMR, TGA, DSC, SEM, and XRD. Finally, the molecular structure of one bisteroid was confirmed by single-crystal X-ray analysis.
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Affiliation(s)
- Gabriel Guerrero-Luna
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico; (G.G.-L.); (A.C.-C.); (J.S.-R.)
| | - María Guadalupe Hernández-Linares
- Centro de Química, Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico
- Laboratorio de Investigación, Herbario y Jardín Botánico Universitario, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico
- Correspondence:
| | - Sylvain Bernès
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico;
| | - Alan Carrasco-Carballo
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico; (G.G.-L.); (A.C.-C.); (J.S.-R.)
| | - Diana Montalvo-Guerrero
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados–Unidad Mérida, km 6 Antigua Carretera a Progreso, Cordemex, 97310 Mérida, Yuc., Mexico; (D.M.-G.); (M.A.F.-H.)
| | - María A. Fernández-Herrera
- Departamento de Física Aplicada, Centro de Investigación y de Estudios Avanzados–Unidad Mérida, km 6 Antigua Carretera a Progreso, Cordemex, 97310 Mérida, Yuc., Mexico; (D.M.-G.); (M.A.F.-H.)
| | - Jesús Sandoval-Ramírez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 72570 Puebla, Pue., Mexico; (G.G.-L.); (A.C.-C.); (J.S.-R.)
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Conboy D, Mirallai SI, Craig A, McArdle P, Al-Kinani AA, Barton S, Aldabbagh F. Incorporating Morpholine and Oxetane into Benzimidazolequinone Antitumor Agents: The Discovery of 1,4,6,9-Tetramethoxyphenazine from Hydrogen Peroxide and Hydroiodic Acid-Mediated Oxidative Cyclizations. J Org Chem 2019; 84:9811-9818. [PMID: 31293163 DOI: 10.1021/acs.joc.9b01427] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The reactivity of hydrogen peroxide and catalytic hydroiodic acid toward 3,6-dimethoxy-2-(cycloamino)anilines is tunable to give ring-fused benzimidazoles or 1,4,6,9-tetramethoxyphenazine in high yield. Mechanisms via a detected nitroso-intermediate are proposed for oxidative cyclization and the unexpected intermolecular displacement of the oxazine. An aqueous solution of molecular iodine is capable of the same transformations. Oxidative demethylation gave targeted benzimidazolequinones, including without cleavage of the incorporated oxetane.
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Affiliation(s)
- Darren Conboy
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry , Kingston University , Penrhyn Road , Kingston upon Thames KT1 2EE , U.K
| | - Styliana I Mirallai
- School of Chemistry , National University of Ireland Galway , University Road , Galway H91 TK33 , Ireland
| | - Austin Craig
- School of Chemistry , National University of Ireland Galway , University Road , Galway H91 TK33 , Ireland
| | - Patrick McArdle
- School of Chemistry , National University of Ireland Galway , University Road , Galway H91 TK33 , Ireland
| | - Ali A Al-Kinani
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry , Kingston University , Penrhyn Road , Kingston upon Thames KT1 2EE , U.K
| | - Stephen Barton
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry , Kingston University , Penrhyn Road , Kingston upon Thames KT1 2EE , U.K
| | - Fawaz Aldabbagh
- Department of Pharmacy, School of Life Sciences, Pharmacy and Chemistry , Kingston University , Penrhyn Road , Kingston upon Thames KT1 2EE , U.K.,School of Chemistry , National University of Ireland Galway , University Road , Galway H91 TK33 , Ireland
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Iqbal A, Siddiqi HM, Akhter Z, Qaiser Fatmi M. Design and characterization of novel bis -benzamide liquid crystalline materials. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.08.106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Baravkar SB, Kotmale AS, Shaikh SR, Gonnade RG, Sanjayan GJ. Structural Insights into the Hydrogen-Bonding and Folding Pattern in Ant-Ant-Pro-Gly Tetrapeptides. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700181] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Sachin B. Baravkar
- Division of Organic Chemistry; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road 411008 Pune India
| | - Amol S. Kotmale
- Central NMR facility; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road 411008 Pune India
| | - Samir R. Shaikh
- Center for Materials Characterization; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road 411008 Pune India
| | - Rajesh G. Gonnade
- Center for Materials Characterization; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road 411008 Pune India
| | - Gangadhar J. Sanjayan
- Division of Organic Chemistry; CSIR-National Chemical Laboratory (CSIR-NCL); Dr. Homi Bhabha Road 411008 Pune India
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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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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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9
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Heng BT, Yeap GY, Mahmood WAK, Miyashita K, Ito MM. Twin effects of induction and stabilization of the SmA* phase by Cu(ii) using 4,4′-disubstituted salicylideneimine containing [1,2,3]-triazole and cholesterol arms. NEW J CHEM 2015. [DOI: 10.1039/c5nj00458f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ligands exhibited N* and SmC* phases, while Cu(ii) complexes exhibited the SmA* phase which was absent in their respective ligands.
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Affiliation(s)
- Boon-Teck Heng
- Liquid Crystal Research Laboratory
- School of Chemical Sciences
- Universiti Sains Malaysia
- 11800 Minden
- Malaysia
| | - Guan-Yeow Yeap
- Liquid Crystal Research Laboratory
- School of Chemical Sciences
- Universiti Sains Malaysia
- 11800 Minden
- Malaysia
| | - Wan Ahmad Kamil Mahmood
- Liquid Crystal Research Laboratory
- School of Chemical Sciences
- Universiti Sains Malaysia
- 11800 Minden
- Malaysia
| | - Kiyoshi Miyashita
- Department of Environmental Engineering for Symbiosis
- Faculty of Engineering
- Soka University
- Hachioji
- Japan
| | - Masato M. Ito
- Department of Environmental Engineering for Symbiosis
- Faculty of Engineering
- Soka University
- Hachioji
- Japan
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10
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Setia S, Sidiq S, Pal SK. Microwave-assisted synthesis of novel oligomeric rod-disc hybrids. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.058] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Zhang DW, Zhao X, Hou JL, Li ZT. Aromatic Amide Foldamers: Structures, Properties, and Functions. Chem Rev 2012; 112:5271-316. [PMID: 22871167 DOI: 10.1021/cr300116k] [Citation(s) in RCA: 509] [Impact Index Per Article: 42.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Dan-Wei Zhang
- Department of Chemistry, Fudan
University, 220 Handan Road, Shanghai 200433, China
| | - Xin Zhao
- Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai
200032, China
| | - Jun-Li Hou
- Department of Chemistry, Fudan
University, 220 Handan Road, Shanghai 200433, China
| | - Zhan-Ting Li
- Department of Chemistry, Fudan
University, 220 Handan Road, Shanghai 200433, China
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12
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Zou S, He L, Zhang J, He Y, Yuan L, Wu L, Luo J, Wang Y, Feng W. Tunable Mesogens Based on Shape-Persistent Aromatic Oligoamides: From Lamellar, Columnar, to Nematic Liquid Crystalline Phase. Org Lett 2012; 14:3584-7. [DOI: 10.1021/ol301057g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Shuliang Zou
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Lutao He
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Jing Zhang
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Youzhou He
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Lihua Yuan
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Lixin Wu
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Jian Luo
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Yinghan Wang
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
| | - Wen Feng
- College of Chemistry, Key Laboratory for Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, State Key Laboratory of Polymer Materials Engineering, College of Polymer Science and Engineering, Sichuan University, Chengdu 610064, China and College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China
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