1
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Radicke J, Busse K, Jerschabek V, Hashemi Haeri H, Abu Bakar M, Hinderberger D, Kressler J. 1-Ethyl-3-methylimidazolium Acetate as a Reactive Solvent for Elemental Sulfur and Poly(sulfur nitride). J Phys Chem B 2024; 128:5700-5712. [PMID: 38822794 PMCID: PMC11182232 DOI: 10.1021/acs.jpcb.4c01536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/03/2024]
Abstract
We investigate the reactive dissolution process of poly(sulfur nitride) (SN)x in the ionic liquid (IL) 1-ethyl-3-methylimidazolium acetate [EMIm][OAc] in comparison to the process of elemental sulfur in the same IL. It has been known from the literature that during the reaction of S8 with [EMIm][OAc], the respective thione is formed via a radical mechanism. Here, we present new results on the kinetics of the formation of the respective imidazole thione (EMImS) via the hexasulfur dianion [S6]2- and the trisulfur radical anion [S3]•-. We can show that [S6]2- is formed first, which dissociates then to [S3]•-. Also, long-term stable radicals occur, which are necessary side products provided in a reaction scheme. During the reaction of [EMIm][OAc] with (SN)x chains, two further products can be identified, one of which is the corresponding imine. The reactions are followed by time-resolved NMR spectroscopic methods that showed the corresponding product distributions and allowed the assignment of the individual signals. In addition, continuous-wave (CW) EPR and UV/vis spectroscopic measurements show the course of the reactions. Another significant difference in both reactions is the formation of a long-term stable radical in the sulfur-IL system, which remains active over 35 days, while for the (SN)x-IL system, we can determine a radical species only with the spin trap 5,5-dimethyl-1-pyrrolin-N-oxide, which indicates the existence of short-living radicals. Since the molecular dynamics are restricted based on the EPR spectra, these radicals must be large.
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Affiliation(s)
- Julian Radicke
- Department of Chemistry, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Karsten Busse
- Department of Chemistry, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Vanessa Jerschabek
- Department of Chemistry, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Haleh Hashemi Haeri
- Department of Chemistry, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Muhammad Abu Bakar
- Department of Chemistry, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Dariush Hinderberger
- Department of Chemistry, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
| | - Jörg Kressler
- Department of Chemistry, Martin Luther University Halle-Wittenberg, von-Danckelmann-Platz 4, D-06120 Halle (Saale), Germany
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2
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Kuczmera TJ, Dietz A, Boelke A, Nachtsheim BJ. Synthesis and reactivity of azole-based iodazinium salts. Beilstein J Org Chem 2023; 19:317-324. [PMID: 36960303 PMCID: PMC10028571 DOI: 10.3762/bjoc.19.27] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/06/2023] [Indexed: 03/18/2023] Open
Abstract
A systematic investigation of imidazo- and pyrazoloiodazinium salts is presented. Besides a robust synthetic protocol that allowed us to synthesize these novel cyclic iodonium salts in their mono- and dicationic forms, we gained in-depth structural information through single-crystal analysis and demonstrated the ring opening of the heterocycle-bridged iodonium species. For an exclusive set of dicationic imidazoiodaziniums, we show highly delicate post-oxidation functionalizations retaining the hypervalent iodine center.
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Affiliation(s)
- Thomas J Kuczmera
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Annalena Dietz
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Andreas Boelke
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
| | - Boris J Nachtsheim
- Institute for Organic and Analytical Chemistry, University of Bremen, 28359 Bremen, Germany
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3
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Pattarawarapan M, Yamano D, Hongsibsong S, Phakhodee W. Divergent Approach for Regioselective Synthesis of Linearly and Angularly Fused Benzoimidazoquinazolinones from Isatoic Anhydrides. J Org Chem 2022; 87:16063-16073. [PMID: 36372967 DOI: 10.1021/acs.joc.2c02317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Ph3P-I2-mediated condensation reactions of isatoic anhydrides and o-phenylenediamines have been developed for the regioselective syntheses of a wide range of linearly and angularly fused benzoimidazoquinazolinones. The selectivity of the products relies on the generation of either highly electrophilic oxyphosphonium or less reactive imidate intermediates. A direct amine attack at the C-2 position of the oxyphosphonium intermediate presumably drives the reaction toward the linearly fused products, whereas an attack of the diamine at the C-4 position of the in situ generated cyclic imidate leads to the angularly fused derivatives. This strategy serves as a practical handle for the efficient synthesis of other related heterocycles.
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Affiliation(s)
- Mookda Pattarawarapan
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Environmental, Occupational Health Sciences and Non Communicable Diseases Center of Excellence, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Dolnapa Yamano
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Surat Hongsibsong
- Environmental, Occupational Health Sciences and Non Communicable Diseases Center of Excellence, Chiang Mai University, Chiang Mai 50200, Thailand.,School of Health Science Research, Research Institute for Health Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Wong Phakhodee
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.,Environmental, Occupational Health Sciences and Non Communicable Diseases Center of Excellence, Chiang Mai University, Chiang Mai 50200, Thailand
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4
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Pilathottathil F, Unnikrishnan S, Kaliyamoorthy A. Heteroarylation of Sulfenate Ions In Situ Generated from β-Sulfinyl Esters under Transition-Metal-Free Conditions. J Org Chem 2022; 87:14980-14990. [PMID: 36268936 DOI: 10.1021/acs.joc.2c02153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Heteroaryl sulfoxides are an integral part of several bioactive molecules and pharmaceuticals. We have described a transition-metal-free route for the direct sulfinylation of 2-halobenzothiazoles and 2-halobenzimidazoles using β-sulfinyl esters as the source of the sulfenate ion in the presence of a Brønsted base such as LiOtBu, and the corresponding heteroaryl sulfoxides were isolated in yields of 30 to 94%. Moreover, we hypothesized a plausible concerted nucleophilic aromatic substitution (cSNAr) pathway for the direct incorporation of sulfinyl functionality into the 2-haloheteroarenes.
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Affiliation(s)
- Fathima Pilathottathil
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Sreelakshmi Unnikrishnan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
| | - Alagiri Kaliyamoorthy
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Kerala 695551, India
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5
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Wang X, Xiang J, Wang J, Yu Z, Tang ZL, Xiao J. H3PO3/I2 mediated formation of N-benzyl benzo heterocyclic ketones from aromatic aldehydes and benzyl alcohol derivatives. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Xu S, Chen W, Yang X, Shi J, Mai Z, Zhu Z, Chen L, Chen X. Facile Synthesis of 2-Methylenebenzothiazoles from Benzothiazole Salts and 4-Hydroxycoumarins by Ball Milling. Chem Asian J 2022; 17:e202200843. [PMID: 36063072 DOI: 10.1002/asia.202200843] [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: 08/14/2022] [Revised: 09/04/2022] [Indexed: 11/07/2022]
Abstract
A simple and practical method for the synthesis of 2-methylenebenzothiazoles via the coupling of a benzothiazole salts and 4-hydroxycoumarins have been described herein. The reaction showed a good substrate range and functional compatibility under mechanochemical conditions, and proceeded without catalysts or solvents. The 2-methylenebenzothiazoles products were achieved via the formation of a C=C double bond and exhibited strong luminescence and typical aggregation-induced emission (AIE) properties, indicating their potential for use as fluorescent materials.
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Affiliation(s)
- Shengting Xu
- Wuyi University, School of Biotechnology and Health Sciences, Jiangmen, CHINA
| | - Wantao Chen
- Wuyi University, School of Biotechnology and Health Sciences, Jiangmen, CHINA
| | - Xiaotong Yang
- Wuyi University, School of Biotechnology and Health Sciences, Jiangmen, CHINA
| | - Jianyi Shi
- Wuyi University, School of Biotechnology and Health Sciences, Jiangmen, CHINA
| | - Zuyu Mai
- Wuyi University, School of Biotechnology and Health Sciences, Jiangmen, CHINA
| | - Zhongzhi Zhu
- Wuyi University, School of Biotechnology and Health Sciences, Jiangmen, CHINA
| | - Ling Chen
- Wuyi University, School of Biotechnology and Health Sciences, Jiangmen, CHINA
| | - Xiuwen Chen
- Wuyi University, School of Biotechnology and Health Sciences, No.22, Dongcheng Street, 529020, Jiangmen, CHINA
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7
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Yu M, Zhen L, Jiang L. Cobalt‐Catalyzed Hydrolysis/C‐H Thiolation Cascade Reaction of N‐Aryl Thiocarbamoyl Fluorides with Water: Access to 3‐Alkyl‐2(3H)‐Benzothiazolones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Miao Yu
- East China Normal University CHINA
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8
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Zhuo X, Zheng L, Zou X, Zhong Y, Guo W. Metal-Free Temperature-Controlled Intermolecular [3 + 2] Annulation to Access Benzo[ d]thiazole-2(3 H)-thiones and Benzo[ d]thiazol-2(3 H)-ones. J Org Chem 2022; 87:10467-10475. [PMID: 35820197 DOI: 10.1021/acs.joc.2c01060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A facile access to benzo[d]thiazole-2(3H)-thiones and benzo[d]thiazol-2(3H)-ones has been developed through a temperature-controlled intermolecular [3 + 2] annulation of N,N-disubstituted arylhydrazines with CS2 in the presence of DMSO. This protocol can obviate the prefunctionalization of the starting materials. This direct C-S/C-N bond formation reaction was performed in the absence of any external catalysts, transition metals, bases, ligands, and oxidants with high step economy.
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Affiliation(s)
- Xiaoya Zhuo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Lvyin Zheng
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Xiaoying Zou
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Yumei Zhong
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
| | - Wei Guo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou 341000, China
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9
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Wang Y, Sun YY, Cui YM, Yu YX, Wu ZG. Construction of Benzimidazolone Derivatives via Aryl Iodide Catalyzed Intramolecular Oxidative C-H Amination. J Org Chem 2022; 87:3234-3241. [PMID: 35170306 DOI: 10.1021/acs.joc.1c02929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The first aryl iodide catalyzed intramolecular C-H amination of phenylurea has been disclosed for high-efficiency synthesis of benzimidazolone derivatives in excellent yields (up to 97%) by an operationally simple one-step organocatalytic oxidative process. Fluorinated protic alcohols can efficiently accelerate the conversion of this transformation. The straightforward method has good functional group tolerance and can be performed with an inexpensive and readily accessible catalyst with high proficiency.
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Affiliation(s)
- Yang Wang
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, P. R. China
| | - Yuan-Yuan Sun
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, P. R. China
| | - Yi-Mo Cui
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, P. R. China
| | - Ying-Xin Yu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, P. R. China
| | - Zheng-Guang Wu
- School of Chemistry and Chemical Engineering, Nantong University, Nantong, Jiangsu 226019, P. R. China
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10
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Doucet H, Huang HY, Li H, Cordier M. Palladium-Catalyzed C–H Bond Arylation and O- to N-Alkyl Migratory Rearrangement of 2-Alkoxythiazoles: One-Pot Access to 2-Alkoxy-5-arylthiazoles or 3-Alkyl-5-arylthiazol-2(3H)-ones. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/s-0041-1737326] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractPd-catalyzed direct arylation of 2-alkylthiazoles is a well-known reaction affording the corresponding 2-alkyl-5-arylthiazoles in very high yields. Conversely, the reactivity of 2-alkoxythiazoles has not been described yet. Herein, we report conditions for the Pd-catalyzed regioselective C5-arylation of 2-alkoxythiazoles. Moreover, we also found reaction conditions leading to 3-alkyl-5-arylthiazol-2(3H)-ones via a one-pot direct arylation with an O- to N-alkyl migratory rearrangement. The judicious choice of reaction temperature and time allows control over the selectivity of the reaction. In general, at 100 °C, 2-alkoxy-5-arylthiazoles were the major products, whereas, at 120 °C with a longer reaction time, 3-alkyl-5-arylthiazol-2(3H)-ones were obtained with good selectivities. The arylation reaction is promoted by a ligand-free air-stable palladium catalyst and a simple and inexpensive base, without oxidant or further additives, and tolerates a variety of useful substituents on the aryl bromide and also heteroaryl bromides.
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11
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Vangrunderbeeck S, Balcaen T, Veryser C, Steurs G, De Borggraeve WM. Carbonylation Chemistry Applied to the Synthesis of Benzimidazo[2,1‐
b
]quinazolin‐12‐ones. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sarah Vangrunderbeeck
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
| | - Tim Balcaen
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
| | - Cedrick Veryser
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
| | - Gert Steurs
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
| | - Wim M. De Borggraeve
- Molecular Design and Synthesis Department of Chemistry KU Leuven Celestijnenlaan 200F, Box 2404 3001 Leuven Belgium
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12
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Teng Q, Zhao Y, Lu Y, Liu Z, Chen H, Yuan D, Huynh HV, Meng Q. Synthesis, Characterization, and Catalytic Study of Caffeine-Derived N-heterocyclic Carbene Palladium Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00641] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Qiaoqiao Teng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Yaru Zhao
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Yuchen Lu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Ziwei Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Haiqun Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Han Vinh Huynh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Singapore, Republic of Singapore
| | - Qi Meng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, People’s Republic of China
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13
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Aneeja T, Radhika S, Neetha M, Anilkumar G. An Overview of the One-pot Synthesis of Imidazolines. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999201001153735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
One-pot syntheses are a simple, efficient and easy methodology, which are widely
used for the synthesis of organic compounds. Imidazoline is a valuable heterocyclic moiety
used as a synthetic intermediate, chiral auxiliary, chiral catalyst and a ligand for asymmetric
catalysis. Imidazole is a fundamental unit of biomolecules that can be easily prepared from
imidazolines. The one-pot method is an impressive approach to synthesize organic compounds
as it minimizes the reaction time, separation procedures, and ecological impact. Many significant
one-pot methods such as N-bromosuccinimide mediated reaction, ring-opening of tetrahydrofuran,
triflic anhydrate mediated reaction, etc. were reported for imidazoline synthesis.
This review describes an overview of the one-pot synthesis of imidazolines and covers literature
up to 2020.
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Affiliation(s)
- Thaipparambil Aneeja
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| | - Sankaran Radhika
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| | - Mohan Neetha
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
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14
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Ding B, Sun J, Jiang W, Jin G, Yan C. Formation of N,S‐Containing Polycycles via Base Promoted Dimerization of N‐Phenacyl and N‐Benzylbenzothiazolium Bromides. ChemistrySelect 2020. [DOI: 10.1002/slct.201904941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Bang‐Dong Ding
- Bang-Dong DingCollege of Chemical EngineeringYangzhou Polytechnic Institute. Yangzhou 225127 China
| | - Jing Sun
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| | - Wang Jiang
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| | - Gong Jin
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| | - Chao‐Guo Yan
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
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15
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Mitra S, Das R, Singh A, Mukhopadhyay MK, Roy G, Ghosh SK. Surface Activities of a Lipid Analogue Room-Temperature Ionic Liquid and Its Effects on Phospholipid Membrane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:328-339. [PMID: 31826620 DOI: 10.1021/acs.langmuir.9b02716] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
There are great efforts of synthesizing imidazolium-based ionic liquids (ILs) for developing new antibiotics as these molecules have shown strong antibacterial activities. Compared to a single-hydrocarbon-chained IL, the lipid analogues (LAs) with two chains are more effective. In the present study, the LA molecule MeIm(COOH)Me(Oleylamine)Iodide has been synthesized and its surface activities along with the effectiveness in restructuring of a model cellular membrane have been quantified. The molecule is found to be highly surface active as estimated from the area-pressure isotherm of a monolayer of the molecules formed at the air-water interface. The X-ray reflectivity (XRR) studies of a monolayer dip-coated on a hydrophilic substrate have shown the structural properties of the layer which resembles to those of unsaturated phospholipids. The LA molecules are observed to fluidize a phospholipid bilayer formed by the saturated lipid 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC). At a lower surface pressure, the lipid monolayer of DPPC has exhibited a thickening effect at a low concentration of added LA and a thinning effect at higher concentration. However, at a high surface pressure of the monolayer, the thickness is found to decrease monotonically. The in-plane pressure-dependent interaction of LA molecules with model cellular membrane and the corresponding perturbation in the structure and physical properties of the membrane may be linked to the strong lysing effect of these types of molecules.
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Affiliation(s)
| | | | - A Singh
- Surface Physics and Material Science Division , Saha Institute of Nuclear Physics , AF Block, Bidhannagar , Kolkata 700064 , India
| | - M K Mukhopadhyay
- Surface Physics and Material Science Division , Saha Institute of Nuclear Physics , AF Block, Bidhannagar , Kolkata 700064 , India
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16
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Chen J, Ahmed W, Li M, Li Z, Cui Z, Tang R. TEMPO‐Mediated Synthesis of
N
‐(Fluoroalkyl)imidazolones via Reaction of Imidazoles with Iodofluoroacetate. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900820] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jia‐Hao Chen
- Department of Applied Chemistry, College of Materials and Energy, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresourcesSouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Wasim Ahmed
- Department of Applied Chemistry, College of Materials and Energy, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresourcesSouth China Agricultural University Guangzhou 510642 People's Republic of China
- Integrative Microbiology Research Centre, Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Ming‐Hua Li
- Department of Applied Chemistry, College of Materials and Energy, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresourcesSouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Zhao‐Dong Li
- Department of Applied Chemistry, College of Materials and Energy, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresourcesSouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Zi‐Ning Cui
- Department of Applied Chemistry, College of Materials and Energy, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresourcesSouth China Agricultural University Guangzhou 510642 People's Republic of China
- Integrative Microbiology Research Centre, Guangdong Province Key Laboratory of Microbial Signals and Disease ControlSouth China Agricultural University Guangzhou 510642 People's Republic of China
| | - Ri‐Yuan Tang
- Department of Applied Chemistry, College of Materials and Energy, State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresourcesSouth China Agricultural University Guangzhou 510642 People's Republic of China
- Key Laboratory of Natural Pesticide & Chemical Biology, Ministry of EducationSouth China Agricultural University Guangzhou 510642 People's Republic of China
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17
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Han J, Zhou R, Huang C, Zeng Q, Long Q, Zhang Q, Cong H, Zhou Q, Wei G, Liu M. Efficient synthesis of sulfonylguanidines via reaction of tetra-substituted urine with ArSO2NCO. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Zhu Y, Wang Q, Luo H, Wang Z, Zhang G, Yu Y. A facile and efficient approach for the synthesis of 3-arylthiazol-2(3 H)-one. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1615099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Yue Zhu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P. R. China
| | - Qilin Wang
- School of Biological and Pharmaceutical Engineering, Wuhan Polytechnic University, Wuhan, P. R. China
| | - Haofan Luo
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P. R. China
| | - Zijuan Wang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P. R. China
| | - Guolin Zhang
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P. R. China
| | - Yongping Yu
- Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, P. R. China
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