1
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Inoue T, Ota M, Amijima Y, Takahashi H, Hamada S, Nakamura S, Kobayashi Y, Sasamori T, Furuta T. Dual Chalcogen-Bonding Interactions for the Conformational Control of Urea. Chemistry 2023; 29:e202302139. [PMID: 37507838 DOI: 10.1002/chem.202302139] [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: 07/05/2023] [Revised: 07/28/2023] [Accepted: 07/28/2023] [Indexed: 07/30/2023]
Abstract
Dual chalcogen-bonding interactions is proposed as a novel means for the conformational control of urea derivatives. The formation of a chalcogen-bonding interaction at both sides of the urea carbonyl group was unambiguously confirmed by X-ray diffraction as well as computational studies including non-covalent interaction (NCI) plot index analysis, quantum theory of atoms in molecules (QTAIM) analysis, and natural bond orbital (NBO) analysis via DFT calculations. By virtue of this dual interaction, urea derivatives that bear chalcogen atoms (X=S and Se) adopt a planar structure via the carbonyl oxygen (O) with an X⋅⋅⋅O⋅⋅⋅X arrangement on the same side of the molecule. The rigidity of the conformational lock was evaluated using the molecular arrangement in the crystal and the rotational barrier of benzochalcogenophene ring, which indicated a stronger conformational lock in benzoselenophene than in benzothiophene urea derivatives. Furthermore, the acidity of the urea derivatives increases according to the Lewis-acidic properties of the chalcogen-bonding interactions, whereby benzoselenophene urea is more acidic than benzothiophene urea. Tweezer-shaped urea derivatives were prepared, and their stereostructure proved the viability of the conformational control for defining the location of the substituents on the urea framework.
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Affiliation(s)
- Takumi Inoue
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Moe Ota
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yui Amijima
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Haru Takahashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Shohei Hamada
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Seikou Nakamura
- Department of Pharmacognosy, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Yusuke Kobayashi
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
| | - Takahiro Sasamori
- Department of Chemistry Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
| | - Takumi Furuta
- Department of Pharmaceutical Chemistry, Kyoto Pharmaceutical University, Yamashina-ku, Kyoto, 607-8414, Japan
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2
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Construction of photoswitchable urea-based multiple H-bonding motifs. Tetrahedron 2023. [DOI: 10.1016/j.tet.2023.133343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
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3
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Jinks M, Howard M, Rizzi F, Goldup SM, Burnett AD, Wilson AJ. Direct Detection of Hydrogen Bonds in Supramolecular Systems Using 1H- 15N Heteronuclear Multiple Quantum Coherence Spectroscopy. J Am Chem Soc 2022; 144:23127-23133. [PMID: 36508201 PMCID: PMC9782782 DOI: 10.1021/jacs.2c10742] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Hydrogen-bonded supramolecular systems are usually characterized in solution through analysis of NMR data such as complexation-induced shifts and nuclear Overhauser effects (nOe). Routine direct detection of hydrogen bonding particularly in multicomponent mixtures, even with the aid of 2D NMR experiments for full assignment, is more challenging. We describe an elementary rapid 1H-15N HMQC NMR experiment which addresses these challenges without the need for complex pulse sequences. Under readily accessible conditions (243/263 K, 50 mM solutions) and natural 15N abundance, unambiguous assignment of 15N resonances facilitates direct detection of intra- and intermolecular hydrogen bonds in mechanically interlocked structures and quadruply hydrogen-bonded dimers─of dialkylaminoureidopyrimidinones, ureidopyrimidinones, and diamidonaphthyridines─in single or multicomponent mixtures to establish tautomeric configuration, conformation, and, to resolve self-sorted speciation.
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Affiliation(s)
- Michael
A. Jinks
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | - Mark Howard
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | - Federica Rizzi
- Department
of Chemistry, University of Southampton, Highfield Campus, Southampton SO17 2BJ, U.K.
| | - Stephen M. Goldup
- Department
of Chemistry, University of Southampton, Highfield Campus, Southampton SO17 2BJ, U.K.
| | - Andrew D. Burnett
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.
| | - Andrew J. Wilson
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.,Astbury
Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K.,
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4
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Arisawa M, Mizuno T, Nozawa-Kumada K, Itto-Nakama K, Furuta M, Tanii S. Rhodium-Catalyzed Synthesis of Unsymmetric Di(heteroaryl)ureas Involving an Equilibrium Shift. Org Lett 2021; 23:9382-9386. [PMID: 34851119 DOI: 10.1021/acs.orglett.1c03485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Unsymmetric di(heteroaryl)ureas such as HetAr1-NHCONH-HetAr2 are efficiently synthesized from two symmetric ureas, HetAr1-NHCONH-HetAr1 and HetAr2-NHCONH-HetAr2, by rhodium-catalyzed exchange reactions. The equilibrium in some of the reactions can be shifted to the formation of unsymmetric ureas by the aggregation of the dimers formed by inter- and intramolecular hydrogen bonding.
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Affiliation(s)
- Mieko Arisawa
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan.,Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka 819-0395, Japan
| | - Taro Mizuno
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kanako Nozawa-Kumada
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Kaori Itto-Nakama
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Miyu Furuta
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
| | - Saori Tanii
- Department of Organic Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Aoba, Sendai 980-8578, Japan
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5
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Idrees MZ, Ilahi I, Ali MZ, Muhammad Z. Efficient palladium (II) electrocatalysts with thiophene anchored pyridinium amidates for CO2 reduction. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2020.101384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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6
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Laha JK, Singh N, Hunjan MK. Synthesis of unsymmetrical urea from aryl- or pyridyl carboxamides and aminopyridines using PhI(OAc) 2via in situ formation of aryl- or pyridyl isocyanates. NEW J CHEM 2021. [DOI: 10.1039/d1nj03160k] [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
The synthesis of unsymmetrical ureas (N-aryl-N′-pyridylurea and N,N′-bipyridylurea) from aryl- or pyridyl carboxamides and aminopyridines in the presence of PhI(OAc)2 has been reported. The formation of pyridylisocyanates from their corresponding carboxamides via Hofmann rearrangement is confirmed.
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Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Neha Singh
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Mandeep Kaur Hunjan
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
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7
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Verhoeven DGA, Albrecht M. Modular O- vs. N-coordination of pyridylidene amide ligands to iron determines activity in alcohol oxidation catalysis. Dalton Trans 2020; 49:17674-17682. [PMID: 33232405 DOI: 10.1039/d0dt02818e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A family of polydentate pyridine-substituted pyridylidene amide (PYA) complexes bound to iron(ii) was developed. The variation of the coordination set from NN-bidentate PYA to tridentate pincer-type pyPYA2 systems (pyPYA2 = 2,6-bis(PYA)pyridine) had a large influence on the binding mode to iron(ii), including a change from the N- to rare O-coordination of the PYA site and a concomitant shift of the predominant ligand resonance structure. These binding mode variations invoke changes in the reactivity of the complexes, which were probed in the peroxide-mediated oxidation of 1-phenylethanol to acetophenone. A comparison with uncomplexed FeCl2 indicated that bidentate NN coordination is unstable and presumably leads to the dissociation of FeCl2. In contrast, the tridentate ligand binding is robust. Remarkably, the tridentate PYA pincer coordination inhibits catalytic activity in the NNN binding mode, while the ONO coordination greatly enhances catalytic performance. Under optimized conditions, the bis-ligated ONO pincer iron complex [Fe(pyPYA2)2][2PF6] reaches full conversion within one hour (0.5 mol% catalyst loading) and under dilute conditions turnover numbers over 20 000 (0.005 mol% catalyst loading).
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Affiliation(s)
- Dide G A Verhoeven
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland.
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8
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Said MA, Eldehna WM, Nocentini A, Bonardi A, Fahim SH, Bua S, Soliman DH, Abdel-Aziz HA, Gratteri P, Abou-Seri SM, Supuran CT. Synthesis, biological and molecular dynamics investigations with a series of triazolopyrimidine/triazole-based benzenesulfonamides as novel carbonic anhydrase inhibitors. Eur J Med Chem 2020; 185:111843. [PMID: 31718943 DOI: 10.1016/j.ejmech.2019.111843] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 10/31/2019] [Accepted: 10/31/2019] [Indexed: 02/06/2023]
Abstract
In the presented work, we report the design and synthesis of different new sets of triazolopyrimidine-based (9a-d) and triazole-based (11a-h, 13a-c, 15a,b, 17a,b and 21a-g) benzenesulfonamides. The newly synthesized sulfonamides were assessed for their inhibitory activities toward four human (h) metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1) isoforms; hCA I, II, IX and XII. The four examined isoforms were inhibited by the prepared sulfonamides (9a-d, 11a-h, 13a-c, 15a,b, 17a,b and 21a-g) in variable degrees with KIs ranges: 94.4-4953.5 nM for hCA I, 6.9-837.6 nM for hCA II, 3.3-85.0 nM for hCA XI, and 4.4-105.0 nM for hCA XII. In particular, sulfonamides 11e, 21a and 21e emerged as single-digit nanomolar hCA IX and hCA XII inhibitors. Interestingly, triazolopyrimidine-based sulfonamide 9d and triazole-based sulfonamide 21e were found to be the most selective hCA IX inhibitors over hCA I (SI = 100.85 and 210.58, respectively) and hCA II (SI = 18.54 and 38.36, respectively). Thereafter, sulfonamides 9d and 21e were docked into the active site of CAs II, IX and XII, then poses showing the best scoring values and favorable binding interactions were subjected to a MM-GBSA based refinement and, limited to CA IX and XII, to a cycle of 100 ns molecular dynamics.
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Affiliation(s)
- Mohamed A Said
- Department of Pharmaceutical Chemistry, College of Pharmacy, Egyptian Russian University, Badr City, Cairo, P.O. Box 11829, Egypt
| | - Wagdy M Eldehna
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Kafrelsheikh University, Kafrelsheikh, P.O. Box 33516, Egypt.
| | - Alessio Nocentini
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy; Department of NEUROFARBA - Pharmaceutical and Nutraceutical Section, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Firenze, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Alessandro Bonardi
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy; Department of NEUROFARBA - Pharmaceutical and Nutraceutical Section, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Firenze, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Samar H Fahim
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, P.O. Box 11562, Egypt
| | - Silvia Bua
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Dalia H Soliman
- Department of Pharmaceutical Chemistry, College of Pharmacy, Egyptian Russian University, Badr City, Cairo, P.O. Box 11829, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al Azhar University, Cairo, P.O. Box 11471, Egypt
| | - Hatem A Abdel-Aziz
- Department of Applied Organic Chemistry, National Research Center, Dokki, Cairo, 12622, Egypt
| | - Paola Gratteri
- Department of NEUROFARBA - Pharmaceutical and Nutraceutical Section, Laboratory of Molecular Modeling Cheminformatics & QSAR, University of Firenze, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy
| | - Sahar M Abou-Seri
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo, P.O. Box 11562, Egypt
| | - Claudiu T Supuran
- Department of NEUROFARBA, Section of Pharmaceutical and Nutraceutical Sciences, University of Florence, Polo Scientifico, Via U. Schiff 6, 50019, Sesto Fiorentino, Firenze, Italy.
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9
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Saroj, Patel OP, Rangan K, Kumar A. Metal-free synthesis of pyridin-2-yl ureas from 2-aminopyridinium salts. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.07.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Deshmukh G, Krishnamoorthy K. Conversion of curved assemblies into two dimensional sheets. NANOSCALE 2019; 11:5732-5736. [PMID: 30865738 DOI: 10.1039/c8nr09915d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The design and preparation of organic two dimensional (O2D) sheets and their conversion to curved nanostructures is in its infancy. To convert a flat structure into a curved structure, the molecule must have multiple interaction possibilities and an in-built twist. The conjugated small molecule iso-Indigo (i-Indigo) comprises two phenyl rings that are twisted (the dihedral angle is 15°) at the junction. The i-Indigo has been connected with moieties that impart hydrogen bonding and van der Waals interactions. Due to the presence of the π cloud in i-Indigo, π-π interactions are also present in the molecule. While all three interactions are in operation, rings and toroids are formed. Upon addition of hydrogen bonding competing solvents, the rings and toroids unravel to form O2D sheets. Control molecules that don't have hydrogen bonding moieties and π-π interactions form random assemblies. Please note that the rings, toroids and O2D sheets are formed in a single solvent by simple dissolution, unlike previous approaches that involve multiple steps and solvents.
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Affiliation(s)
- Gunvant Deshmukh
- Polymers and Advanced Materials Laboratory, CSIR-National Chemical Laboratory, Pune 411008, India.
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11
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Melle P, Manoharan Y, Albrecht M. Modular Pincer-type Pyridylidene Amide Ruthenium(II) Complexes for Efficient Transfer Hydrogenation Catalysis. Inorg Chem 2018; 57:11761-11774. [DOI: 10.1021/acs.inorgchem.8b01895] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Philipp Melle
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Yanisha Manoharan
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
| | - Martin Albrecht
- Department für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
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12
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Semenov AV, Tarasova IV, Khramov VS, Semenova EV, Inchina VI, Vakaeva SS. Glucokinase Activators Based on N-Aryl-N′-Pyridin-2-Ylurea Derivatives. Pharm Chem J 2018. [DOI: 10.1007/s11094-018-1792-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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13
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Kwiatkowski A, Grela I, Ośmiałowski B. Conformational change in the association of a heterocyclic urea derivative forming two intramolecular hydrogen bonds in polar solvent. NEW J CHEM 2017. [DOI: 10.1039/c6nj03224a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Competition of two urea moieties for the same counterpart including change of conformation upon binding in polar solvent.
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Affiliation(s)
- Adam Kwiatkowski
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
| | - Izabela Grela
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
| | - Borys Ośmiałowski
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
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14
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Kulkarni AR, Garai S, Thakur GA. Scalable, One-Pot, Microwave-Accelerated Tandem Synthesis of Unsymmetrical Urea Derivatives. J Org Chem 2016; 82:992-999. [PMID: 27966953 DOI: 10.1021/acs.joc.6b02521] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We report a facile, microwave-accelerated, one-pot tandem synthesis of unsymmetrical ureas via a Curtius rearrangement. In this method, one-pot microwave irradiation of commercially available (hetero)aromatic acids and amines in the presence of diphenylphosphoryl azide enabled extremely rapid (1-5 min) construction of an array of unsymmetrical ureas in good to excellent yields. We demonstrate the utility of our method in the efficient, gram-scale synthesis of key biologically active compounds targeting the cannabinoid 1 and α7 nicotinic acetylcholine receptors.
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Affiliation(s)
- Abhijit R Kulkarni
- Department of Pharmaceutical Sciences, Bouvé College of Health Sciences, Northeastern University , 140 The Fenway, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Sumanta Garai
- Department of Pharmaceutical Sciences, Bouvé College of Health Sciences, Northeastern University , 140 The Fenway, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
| | - Ganesh A Thakur
- Department of Pharmaceutical Sciences, Bouvé College of Health Sciences, Northeastern University , 140 The Fenway, 360 Huntington Avenue, Boston, Massachusetts 02115, United States
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15
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Oxidative Carbonylation of Aromatic Amines with CO Catalyzed by 1,3-Dialkylimidazole-2-selenone in Ionic Liquids. J CHEM-NY 2015. [DOI: 10.1155/2015/210806] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
1,3-Dialkylimidazole-2-selenone as a novel substituted selenium heterocyclic catalyst was used to catalyze oxidative carbonylation of aromatic amines with carbon monoxide in the presence of air to symmetrical ureas in up to 97% yield in ionic liquids.
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16
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Leigh V, Carleton DJ, Olguin J, Mueller-Bunz H, Wright LJ, Albrecht M. Solvent-Dependent Switch of Ligand Donor Ability and Catalytic Activity of Ruthenium(II) Complexes Containing Pyridinylidene Amide (PYA) N-Heterocyclic Carbene Hybrid Ligands. Inorg Chem 2014; 53:8054-60. [DOI: 10.1021/ic501026k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Vivienne Leigh
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Daniel J. Carleton
- School
of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Juan Olguin
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - Helge Mueller-Bunz
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - L. James Wright
- School
of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Martin Albrecht
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
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17
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Gooch A, Murphy N, Thomson NH, Wilson AJ. Side-Chain Supramolecular Polymers Employing Conformer Independent Triple Hydrogen Bonding Arrays. Macromolecules 2013; 46:9634-9641. [PMID: 24478529 PMCID: PMC3903092 DOI: 10.1021/ma402069b] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 11/25/2013] [Indexed: 01/23/2023]
Abstract
Derivatives of thymine have been extensively used to promote supramolecular materials assembly. Such derivatives can be synthetically challenging to access and may be susceptible to degradation. The current article uses a conformer-independent acceptor-donor-acceptor array (ureidopyrimidine) which forms moderate affinity interactions with diamidopyridine derivatives to effect supramolecular blend formation between polystyrene and poly(methyl methacrylate) polymers obtained by RAFT which have been functionalized with the hydrogen bonding motifs.
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Affiliation(s)
- Adam Gooch
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United
Kingdom
| | - Natasha
S. Murphy
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United
Kingdom
| | - Neil H. Thomson
- School
of Physics and Astronomy, University of
Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom
- Department
of Oral Biology, School of Dentistry, University
of Leeds, Clarendon Way, Leeds LS2 9LU, United Kingdom
- Astbury
Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom
| | - Andrew J. Wilson
- School
of Chemistry, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United
Kingdom
- Astbury
Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, United Kingdom
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18
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Ośmiałowski B, Mroczyńska K, Kolehmainen E, Kowalska M, Valkonen A, Pietrzak M, Rissanen K. Association of N-(Pyridin-2-yl),N′-substituted Ureas with 2-Amino-1,8-naphthyridines and Benzoates: NMR and Quantum Chemical Studies of the Substituent Effect on Complexation. J Org Chem 2013; 78:7582-93. [PMID: 23845101 DOI: 10.1021/jo4011393] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Borys Ośmiałowski
- Faculty of Chemical Technology
and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland
| | - Karina Mroczyńska
- Faculty of Chemical Technology
and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland
| | - Erkki Kolehmainen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014, Finland
| | - Magdalena Kowalska
- Faculty of Chemical Technology
and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland
| | - Arto Valkonen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014, Finland
| | - Marek Pietrzak
- Faculty of Chemical Technology
and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland
| | - Kari Rissanen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014, Finland
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19
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Olivari M, Caltagirone C, Garau A, Isaia F, Light ME, Lippolis V, Montis R, Scorciapino MA. Non-symmetric substituted ureas locked in an (E,Z) conformation: an unusual anion binding via supramolecular assembly. NEW J CHEM 2013. [DOI: 10.1039/c2nj40877e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Nesterova EY, Pugacheva AS, Voevudsky MV. Substituted ureas based on 2,6-dimethyl-3,5-pyridinedicarboxylic acid azides. Chem Heterocycl Compd (N Y) 2012. [DOI: 10.1007/s10593-012-1120-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Ośmiałowski B. Noncovalent interactions between classical supramolecular synthons in solution: Hydrogen bonding in hindered 2-acylaminopyridine/2-pyridone associates. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2011.11.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Wilson AJ. Hydrogen-Bonding Receptors for Molecular Guests. Supramol Chem 2012. [DOI: 10.1002/9780470661345.smc071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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23
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Ośmiałowski B, Kolehmainen E, Kowalska M. 2-Acylamino-6-pyridones: Breaking of an Intramolecular Hydrogen Bond by Self-association and Complexation with Double and Triple Hydrogen Bonding Counterparts. Uncommon Steric Effect on Intermolecular Interactions. J Org Chem 2012; 77:1653-62. [DOI: 10.1021/jo201800u] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Borys Ośmiałowski
- Faculty of Chemical Technology
and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland
| | - Erkki Kolehmainen
- Department of Chemistry, University of Jyväskylä, P.O. Box 35,
FI-40014 Finland
| | - Magdalena Kowalska
- Faculty of Chemical Technology
and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland
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24
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Lee CC, Leung MK, Lee PY, Chiu TL, Lee JH, Liu C, Chou PT. Synthesis and Properties of Oxygen-Linked N-Phenylcarbazole Dendrimers. Macromolecules 2011. [DOI: 10.1021/ma202433y] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
| | | | - Pei-Yu Lee
- Department of Photonics Engineering, Yuan Ze University, Taoyuan 32003, Taiwan
| | - Tien-Lung Chiu
- Department of Photonics Engineering, Yuan Ze University, Taoyuan 32003, Taiwan
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25
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Ośmiałowski B, Kolehmainen E, Ikonen S, Ahonen K, Löfman M. NMR crystallography of 2-acylamino-6-[1H]-pyridones: Solid-state NMR, GIPAW computational, and single crystal X-ray diffraction studies. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.10.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Boyd PDW, Wright LJ, Zafar MN. Extending the Range of Neutral N-Donor Ligands Available for Metal Catalysts: N-[1-Alkylpyridin-4(1H)-ylidene]amides in Palladium-Catalyzed Cross-Coupling Reactions. Inorg Chem 2011; 50:10522-4. [DOI: 10.1021/ic201527s] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Peter D. W. Boyd
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - L. James Wright
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - M. Naveed Zafar
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
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27
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Ośmiałowski B. Proton transfer reaction and intermolecular interactions in associates of 2,5-dihydroxy-1,8-naphthyridine. J Mol Model 2011; 18:1633-44. [PMID: 21805130 DOI: 10.1007/s00894-011-1178-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2011] [Accepted: 07/04/2011] [Indexed: 10/17/2022]
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28
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Gooch A, McGhee AM, Renton LC, Plante JP, Lindsay CI, Wilson AJ. Design, synthesis and binding properties of conformer-independent linear ADA hydrogen-bonding arrays. Supramol Chem 2010. [DOI: 10.1080/10610270802468397] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Adam Gooch
- a School of Chemistry, University of Leeds , Leeds, UK
| | | | | | - Jeffrey P. Plante
- a School of Chemistry, University of Leeds , Leeds, UK
- b Astbury Centre for Structural Molecular Biology, University of Leeds , Leeds, UK
| | | | - Andrew J. Wilson
- a School of Chemistry, University of Leeds , Leeds, UK
- b Astbury Centre for Structural Molecular Biology, University of Leeds , Leeds, UK
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29
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Gooch A, McGhee AM, Pellizzaro ML, Lindsay CI, Wilson AJ. Substituent Control over Dimerization Affinity of Triply Hydrogen Bonded Heterodimers. Org Lett 2010; 13:240-3. [DOI: 10.1021/ol102619u] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Adam Gooch
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K., and Huntsman Polyurethanes, Everslaan 45, 3078 Everberg, Belgium
| | - Andrea M. McGhee
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K., and Huntsman Polyurethanes, Everslaan 45, 3078 Everberg, Belgium
| | - Maria L. Pellizzaro
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K., and Huntsman Polyurethanes, Everslaan 45, 3078 Everberg, Belgium
| | - Christopher I. Lindsay
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K., and Huntsman Polyurethanes, Everslaan 45, 3078 Everberg, Belgium
| | - Andrew J. Wilson
- School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, U.K., and Huntsman Polyurethanes, Everslaan 45, 3078 Everberg, Belgium
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30
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Jordan LM, Boyle PD, Sargent AL, Allen WE. Binding of Carboxylic Acids by Fluorescent Pyridyl Ureas. J Org Chem 2010; 75:8450-6. [DOI: 10.1021/jo101730w] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lisa M. Jordan
- Department of Chemistry, Science and Technology Building, East Carolina University, Greenville, North Carolina 27858-4353, United States
| | - Paul D. Boyle
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Andrew L. Sargent
- Department of Chemistry, Science and Technology Building, East Carolina University, Greenville, North Carolina 27858-4353, United States
| | - William E. Allen
- Department of Chemistry, Science and Technology Building, East Carolina University, Greenville, North Carolina 27858-4353, United States
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31
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Ośmiałowski B, Kolehmainen E, Dobosz R, Gawinecki R, Kauppinen R, Valkonen A, Koivukorpi J, Rissanen K. Self-Organization of 2-Acylaminopyridines in the Solid State and in Solution. J Phys Chem A 2010; 114:10421-6. [PMID: 20809592 DOI: 10.1021/jp1063116] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Borys Ośmiałowski
- Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland, and Department of Chemistry, P.O. Box 35, FIN-40014 University of Jyväskylä, Finland
| | - Erkki Kolehmainen
- Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland, and Department of Chemistry, P.O. Box 35, FIN-40014 University of Jyväskylä, Finland
| | - Robert Dobosz
- Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland, and Department of Chemistry, P.O. Box 35, FIN-40014 University of Jyväskylä, Finland
| | - Ryszard Gawinecki
- Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland, and Department of Chemistry, P.O. Box 35, FIN-40014 University of Jyväskylä, Finland
| | - Reijo Kauppinen
- Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland, and Department of Chemistry, P.O. Box 35, FIN-40014 University of Jyväskylä, Finland
| | - Arto Valkonen
- Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland, and Department of Chemistry, P.O. Box 35, FIN-40014 University of Jyväskylä, Finland
| | - Juha Koivukorpi
- Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland, and Department of Chemistry, P.O. Box 35, FIN-40014 University of Jyväskylä, Finland
| | - Kari Rissanen
- Faculty of Chemical Technology and Engineering, University of Technology and Life Sciences, Seminaryjna 3, PL-85-326 Bydgoszcz, Poland, and Department of Chemistry, P.O. Box 35, FIN-40014 University of Jyväskylä, Finland
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32
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Jiang YL, Patel P, Klein SM. A fluorescein-containing, small-molecule, water-soluble receptor for cytosine free bases. Bioorg Med Chem 2010; 18:7034-42. [PMID: 20801661 DOI: 10.1016/j.bmc.2010.08.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2010] [Revised: 08/02/2010] [Accepted: 08/04/2010] [Indexed: 11/15/2022]
Abstract
In this study, we synthesized small-molecule, water-soluble, fluorescein-containing ureido compounds 6 and 8 as target receptors for cytosine free bases and then investigated the binding of cytosine free bases with the receptors using (15)N NMR spectroscopy and partially labeled cytosine-2,4-(13)C-1,3,4-(15)N-cytosine. Binding with the receptor 6a (the disodium form of 6) caused the chemical shift of the nitrogen atom of the amino group of cytosine to move downfield; binding of the receptor 8a (the disodium form of 8), which is possessing no corresponding aryl nitrogen atom, had no effect on this signal. Fluorescence spectroscopy revealed that binding of cytosine and its derivatives led to quenching of the fluorescence of receptor 6a; in contrast, the quenching of receptor 8a was only slightly affected by cytosine. Because the fluorescence of 6a was not quenched by either deoxycytidine or uracil, it appears that this receptor is a specific for cytosine among the DNA bases. We used the fluorescence of 6a to measure the apparent binding constants for various cytosine derivatives, including the anticancer prodrug 5-fluorocytosine. Receptor 6a is the first small-molecule, water-soluble fluorescent receptor for the specific binding of cytosine free bases in aqueous solution.
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Affiliation(s)
- Yu Lin Jiang
- Department of Chemistry, College of Arts and Sciences, East Tennessee State University, Johnson City, TN 37614, United States.
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33
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Sun Y, Zhang Z, Wang X, Li X, Weng L, Zhou X. Isocyanate diinsertion into the N-H bond of the 2-pyridylamino ligand of organolanthanides. Dalton Trans 2010:221-6. [PMID: 20023953 DOI: 10.1039/b918181d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
[Cp2LnNHPy]2 (Py = 2-pyridyl) (1a-e) react with phenyl isocyanate to form the N-H diinsertion products Cp2Ln[eta2:eta1-PyNCON(Ph)CONHPh](THF) (Ln = Yb (3a), Er (3b), Y (3c), Dy (3d), Gd (3e)). It has been proven that nPr2NH can abstract one PhNCO unit from 3c to form Cp2Y[eta3-OC(NHPh)NPy] (2c) and nPr2NHCONHPh (4), representing a rare example of selective release of a functional group of ligands in organolanthanide chemistry. Hydrolysis of 2c gives the organic nitrogen-containing product PyNHCONHPh (5). Moreover, 3c can also be obtained by the reaction of 2c with PhNCO. These results demonstrate that the diinsertion of PhN=C=O into the N-H bond of coordinated amino ligands might proceed in a stepwise manner. All the compounds were characterized by elemental analysis and spectroscopic properties. The structures of compounds 3a-e and 4 are also determined through X-ray single-crystal diffraction analysis.
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Affiliation(s)
- Yan Sun
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University, Shanghai, 200433, People's Republic of China
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34
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Mondragón-Vásquez K, Morales-Rojas H. Molecular recognition of cationic phenothiazinium and phenoxazinium dyes with pi-extended 2'-deoxyadenosine nucleotides. Chem Commun (Camb) 2009:6726-8. [PMID: 19885459 DOI: 10.1039/b913315a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N(6)-(N'-Arylcarbamoyl)-2'-deoxyadenosine-H-phosphonates displayed molecular recognition towards cationic phenothiazinium and phenoxazinium dyes in aqueous solutions; studies have shown that binding is driven mainly by aromatic interactions and that size and shape-complementarity of the aromatic rings in host and guest provides selectivity.
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Affiliation(s)
- Karina Mondragón-Vásquez
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, México
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35
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Liang CK, Wang PS, Leung MK. Oligopyridones: preparation and their folding behavior in polar aprotic solvents. Tetrahedron 2009. [DOI: 10.1016/j.tet.2008.12.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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Reaction of 1-(3,5-Bis(trifluoromethyl)phenyl)-3-(4-(Pyridin-3-yl)pyrimidin-2-yl) urea with Methyl Iodide and X-ray Crystallographic Structure of Its Derivative. B KOREAN CHEM SOC 2008. [DOI: 10.5012/bkcs.2008.29.7.1421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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37
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Hisamatsu Y, Fukumi Y, Shirai N, Ikeda SI, Odashima K. Five-membered heterocyclic ureas suitable for the donor–donor–acceptor hydrogen-bonding modules. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2008.01.068] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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38
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Zhu K, Zhang M, Wang F, Li N, Li S, Huang F. Improved complexation between dibenzo-24-crown-8 derivatives and dibenzylammonium salts by ion-pair recognition. NEW J CHEM 2008. [DOI: 10.1039/b813175a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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McGhee AM, Kilner C, Wilson AJ. Conformer independent heterodimerisation of linear arrays using three hydrogen bonds. Chem Commun (Camb) 2008:344-6. [DOI: 10.1039/b712603d] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Pi C, Zhang Z, Pang Z, Zhang J, Luo J, Chen Z, Weng L, Zhou X. Multiple N−H Bond Activation: Synthesis and Reactivity of Functionalized Primary Amido Ytterbium Complexes. Organometallics 2007. [DOI: 10.1021/om061094+] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Wilson AJ. Non-covalent polymer assembly using arrays of hydrogen-bonds. SOFT MATTER 2007; 3:409-425. [PMID: 32900059 DOI: 10.1039/b612566b] [Citation(s) in RCA: 181] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hydrogen-bond-mediated non-covalent polymer synthesis is an emerging area that presents new opportunities for the design of stimuli-responsive materials. Central to this is the ready availability of appropriate building blocks with which to link monomers together. This review discusses recent developments in the design, synthesis and use of arrays of hydrogen-bonds as supramolecular linking units.
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Affiliation(s)
- Andrew J Wilson
- School of Chemistry, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT, UK.
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42
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A new practical method for the synthesis of unsymmetrical ureas via high-pressure-promoted condensation of 2,2,2-trichloroethyl carbamates (Troc-carbamates) with amines. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.11.045] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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43
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Breuzard JAJ, Christ-Tommasino ML, Lemaire M. Chiral Ureas and Thiroureas in Asymmetric Catalysis. TOP ORGANOMETAL CHEM 2005. [DOI: 10.1007/b136352] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
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44
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An improved Ullmann–Ukita–Buchwald–Li conditions for CuI-catalyzed coupling reaction of 2-pyridones with aryl halides. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.01.063] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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45
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Sook Cho N, Ho Lee C, Kim YJ, Soo Choi J, Kwon Kang S. Organopalladium Complex Containing 5-Amino-3H-1,3,4-thiadiazolin-2-ones as Metalloreceptor for DNA/RNA Nucleobases. HETEROCYCLES 2004. [DOI: 10.3987/com-04-10201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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