1
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Wang L, Zhang W. Recent Advances on Epoxide- and Aziridine-Based [3+2] Annulations. Chem Asian J 2025; 20:e202401936. [PMID: 39962900 DOI: 10.1002/asia.202401936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2024] [Revised: 02/16/2025] [Accepted: 02/17/2025] [Indexed: 04/05/2025]
Abstract
[3+2] Annulations are a powerful method for the synthesis of five-membered heterocyclic compounds. The annulations have concerted cycloaddition and formal (stepwise) cycloaddition reaction pathways. In addition to the well-established O-centered and N-centered ylides, epoxides and aziridines could serve as synthetic equivalent of 1,3-dipoles for [3+2] annulation with dipolarophiles for making functionalized tetrahydrofuran, pyrrolidine, and associated compounds. This review article covers recent development on epoxide- and aziridine-based [3+2] annulation reactions. The reactions are classified based on the ring opening conditions, including acid/base catalysis, organocatalysis, and transitional-metal catalysis.
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Affiliation(s)
- Liang Wang
- School of Chemical and Pharmaceutical Engineering, Changzhou Vocational Institute of Engineering, Gehu Road 33, Wujin District, Changzhou, 213164, P. R. China
| | - Wei Zhang
- Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
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2
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Yu X, Hao L, Liu X, Jin S, Li Y, Liu Y, Ji Y. Electrochemical one-pot cascade synthesis of thio(seleno)cyanato-substituted thiazolidine-2-imines without external electrolyte. Org Biomol Chem 2024; 22:9366-9370. [PMID: 39498627 DOI: 10.1039/d4ob01626b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2024]
Abstract
A novel synthetic method has been developed for generating thio(seleno)cyanato-substituted thiazolidine-2-imines via an electrochemical one-pot cascade reaction. This reaction employs isothiocyanates, N-2-en-1-amines, and KSCN (or KSeCN) under mild conditions, obviating the need for metals, chemical oxidants, and external electrolytes. The protocol is effective with unactivated alkenes and facilitates the synthesis of five- and six-membered thio(seleno)cyanato-substituted thiazolidine-2-imines. The versatility is demonstrated by its straightforward operation and scalability to gram-scale production, underscoring its potential for broader application.
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Affiliation(s)
- Xiao Yu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, Shanghai, China.
| | - Liqiang Hao
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, Shanghai, China.
| | - Xian Liu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, Shanghai, China.
| | - Shengkui Jin
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, Shanghai, China.
| | - Yangchen Li
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, Shanghai, China.
| | - Yiping Liu
- School of Pharmacy, Chongqing Medical and Pharmaceutical College, Chongqing, China.
| | - Yafei Ji
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, Shanghai, China.
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3
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Das B, Dahiya A, Patel BK. Isothiocyanates: happy-go-lucky reagents in organic synthesis. Org Biomol Chem 2024; 22:3772-3798. [PMID: 38656266 DOI: 10.1039/d4ob00281d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Owing to their unique structural features, isothiocyanates (ITCs) are a class of highly useful and inimitable reagents as the -NCS group serves both as electrophile and nucleophile in organic synthesis. ITCs share a rich legacy in organic, medicinal, and combinatorial chemistry. Compared to their oxygen equivalents, isocyanates, ITCs are easily available, less unpleasant, and somewhat less harmful to work with (mild conditions) which makes them happy-go-lucky reagents. Functionalized ITCs can finely tune the reactivity of the -NCS group and thus can be exploited in the late-stage functionalization processes. This review's primary aim is to outline ITC chemistry in the construction and derivatization of heterocycles through the lens of sustainability. For ease and brevity, the sections are divided based on reactive centers present in functionalized ITCs and modes of cyclisation. Scrutinizing their probable unexplored directions for future research studies is also addressed.
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Affiliation(s)
- Bubul Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
- Department of Chemistry, Bagadhar Brahma Kishan College, Jalah, Assam 781327, India
| | - Anjali Dahiya
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
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4
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Li T, Hu D, Huang Y, Zhou Y, Zhang JQ, Zhang C, Zhang Y, Hou Y, Ren H. Light-Driven Access to Selenium-Substituted Thiazole-2-imine Derivatives. J Org Chem 2024; 89:5328-5336. [PMID: 38595055 DOI: 10.1021/acs.joc.3c02698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
The thiazole-2-imine derivatives with interesting pharmacological activities have attracted significant attention. However, previously reported synthesis strategies usually suffered from some drawbacks, such as the use of metals/additive and harsh reaction conditions. Herein, we developed a metal- and photoinitiator-free photocatalytic strategy for the synthesis of various selenium-substituted thiazole-2-imine derivatives for the first time. The reaction displayed mild reaction conditions, simple operation, a broad substrate scope (37 examples), and good to excellent yields.
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Affiliation(s)
- Tangle Li
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Dandan Hu
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Yiwen Huang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Yu Zhou
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Jun-Qi Zhang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Chun Zhang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Yili Zhang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Yanan Hou
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Hongjun Ren
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, China
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5
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Ben Maamer C, Dridi R, Lahmar M, Tabarki MA, Jobran M, Sahtel S, Zid MF, Ouzari HI, Vrancken E, Besbes R. Zinc Tetrafluoroborate-Mediated Ring Expansion of trans-Aziridine-2-carboxylates to cis-2-Iminothiazolidines and cis-Thiazolidine-2-iminium Tetrafluoroborates and Evaluation of Antimicrobial Activity. ACS OMEGA 2023; 8:30402-30409. [PMID: 37636906 PMCID: PMC10448496 DOI: 10.1021/acsomega.3c03531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023]
Abstract
Cis-2-iminothiazolidines and cis-thiazolidine-2-iminium tetrafluoroborates were successfully produced from trans-N-alkyl aziridine-2-carboxylates and phenyl/alkyl isothiocyanates mediated by zinc tetrafluoroborate in refluxing DCE. Reactions were performed via a complete regio- and stereoselective process to give the title iminothiazolidines and cis-thiazolidine-2-iminium salts in moderate to good yields (35 to 82%) with a wide substrate scope. In addition, the antibacterial activity evaluation of these compounds, as well as the minimum inhibitory concentration (MIC) determination, revealed that only four cis-thiazolidine-2-iminium salts showed growth inhibition against Bacillus cereus.
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Affiliation(s)
- Chayma Ben Maamer
- Faculty
of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical
Chemistry and Electrochemistry,University
of Tunis El Manar, Campus
Universities,2092 Tunis El Manar, Tunisia
- UMR
5253 CNRS-UM-ENSCM, Institut Charles Gerhardt
de Montpellier, 240 avenue
du Professeur Emile Jeanbrau, 34296
Cedex 5 Montpellier, France
| | - Rihab Dridi
- Faculty
of Sciences of Tunis, Department of Chemistry, Laboratory of Materials,
Crystal Chemistry and Applied Thermodynamics, University of Tunis El Manar, Campus Universities ,2092 Tunis El Manar, Tunisia
| | - Malek Lahmar
- Faculty
of Sciences of Tunis, Department of Biology, Laboratory Microorganisms
and Active Biomolecules ,University of Tunis
El Manar, Campus Universities, 2092 Tunis El Manar, Tunisia
| | - Mohamed Ali Tabarki
- Faculty
of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical
Chemistry and Electrochemistry,University
of Tunis El Manar, Campus
Universities,2092 Tunis El Manar, Tunisia
| | - Mariem Jobran
- Faculty
of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical
Chemistry and Electrochemistry,University
of Tunis El Manar, Campus
Universities,2092 Tunis El Manar, Tunisia
| | - Sami Sahtel
- Faculty
of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical
Chemistry and Electrochemistry,University
of Tunis El Manar, Campus
Universities,2092 Tunis El Manar, Tunisia
| | - Mohamed Faouzi Zid
- Faculty
of Sciences of Tunis, Department of Chemistry, Laboratory of Materials,
Crystal Chemistry and Applied Thermodynamics, University of Tunis El Manar, Campus Universities ,2092 Tunis El Manar, Tunisia
| | - Hadda Imene Ouzari
- Faculty
of Sciences of Tunis, Department of Biology, Laboratory Microorganisms
and Active Biomolecules ,University of Tunis
El Manar, Campus Universities, 2092 Tunis El Manar, Tunisia
| | - Emmanuel Vrancken
- UMR
5253 CNRS-UM-ENSCM, Institut Charles Gerhardt
de Montpellier, 240 avenue
du Professeur Emile Jeanbrau, 34296
Cedex 5 Montpellier, France
| | - Rafâa Besbes
- Faculty
of Sciences of Tunis, Department of Chemistry, Laboratory of Analytical
Chemistry and Electrochemistry,University
of Tunis El Manar, Campus
Universities,2092 Tunis El Manar, Tunisia
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6
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Hu KW, You X, Wen X, Yuan H, Xu QL, Lai Z. Synthesis of Functionalized Thiazolidin-2-imine and Oxazolidin-2-one Derivatives from p-Quinamines via [3 + 2] Annulation of Isothiocyanates and CO 2. J Org Chem 2022; 88:5052-5058. [PMID: 35880952 DOI: 10.1021/acs.joc.2c01031] [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
An efficient and environmentally friendly synthetic approach to prepare thiazolidine-2-imine and oxazolidine-2-one derivatives has been developed. Thiazolidine-2-imines are synthesized in good to excellent yields by [3 + 2] annulation of p-quinamines with isothiocyanates under catalyst- and solvent-free conditions. Oxazolidine-2-ones are produced in good to excellent yields via [3 + 2] annulation of p-quinamines with CO2 using triethylenediamine (DABCO) as an organocatalyst. Furthermore, this strategy can be performed on a gram scale and tolerate a wide range of functional groups.
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Affiliation(s)
- Kai-Wen Hu
- School of Life Sciences and Health Engineering, Jiangnan University,1800 Lihu Avenue, 214122, Wuxi, China.,Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Xiao You
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Xiaoan Wen
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Haoliang Yuan
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Qing-Long Xu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases and State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjia Xiang, Nanjing 210009, China
| | - Zengwei Lai
- School of Life Sciences and Health Engineering, Jiangnan University,1800 Lihu Avenue, 214122, Wuxi, China
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7
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Abstract
The synthesis of organoselenium compounds continues to be a very active research area, due
to their distinct chemical, physical and biological properties. Selenium-based methods have developed
rapidly over the past few years and organoselenium chemistry has become a very powerful tool in the
hands of organic chemists. This review describes the synthesis of organocatalysed bioactive selenium
scaffolds especially including transition metal-catalysed diaryl selenide synthesis, Cu-catalysed selenium
scaffolds, Pd-catalysed selenium scaffolds, asymmetric catalysis, Nickel catalysed selenium scaffolds
and Rh-catalysed selenium scaffolds.
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Affiliation(s)
- Amol D. Sonawane
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501- 1193, Japan
| | - Mamoru Koketsu
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501- 1193, Japan
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8
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Kumar R, Joshi A, Rawat D, Adimurthy S. Synthesis of thiazolidinimines/thiazinan-2-imines via three-component coupling of amines, vic-dihalides and isothiocyanates under metal-free conditions. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1880594] [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]
Affiliation(s)
- Rahul Kumar
- Academy of Scientific and Innovative Research, Ghaziabad, India
- CSIR–Central Salt and Marine Chemicals Research Institute, Bhavnagar, India
| | - Abhisek Joshi
- Academy of Scientific and Innovative Research, Ghaziabad, India
- CSIR–Central Salt and Marine Chemicals Research Institute, Bhavnagar, India
| | - Deepa Rawat
- Academy of Scientific and Innovative Research, Ghaziabad, India
- CSIR–Central Salt and Marine Chemicals Research Institute, Bhavnagar, India
| | - Subbarayappa Adimurthy
- Academy of Scientific and Innovative Research, Ghaziabad, India
- CSIR–Central Salt and Marine Chemicals Research Institute, Bhavnagar, India
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9
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Abstract
Multiheteroatom-containing small-sized cyclic molecules such as 2-
iminothiazolidines are often found to possess beneficial pharmacological properties. In this
review article, the biological significance of 2-iminothiazolidines is discussed and the literature
reports published in the last 15 years spanning from 2006 to 2020 describing various
preparative routes to access 2-iminothiazolidine derivatives have been categorically and
chronologically described. The notable synthetic methods discussed here involve ringexpansion
transformations of nonactivated and activated aziridines, thiiranes, epoxides, and
other miscellaneous reactions.
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Affiliation(s)
- Aditya Bhattacharyya
- Department of Chemistry, Indian Institute of Technology Kanpur, 208016, Kanpur, Uttar Pradesh, India
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10
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Coin G, Ferrier de Montal O, Dubourdeaux P, Latour J. Expedient Synthesis of 2‐Iminothiazolidines via Telescoping Reactions Including Iron‐Catalyzed Nitrene Transfer and Domino Ring‐Opening Cyclization (DROC). European J Org Chem 2020. [DOI: 10.1002/ejoc.202001379] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Guillaume Coin
- Univ. Grenoble Alpes CNRS UMR 5249, CEA, LCBM/pmb 38000 Grenoble France
- Univ. Grenoble Alpes CNRS UMR 5250, DCM 38000 Grenoble France
- Present address: ETH Zürich Department of Chemistry and Applied Biosciences 8093 Zürich Switzerland
| | | | | | - Jean‐Marc Latour
- Univ. Grenoble Alpes CNRS UMR 5249, CEA, LCBM/pmb 38000 Grenoble France
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11
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Bhandari S, Sakla AP, Shankaraiah N. FeCl
3
‐Catalyzed [3+2] Cycloaddition Reaction: A Mild Synthetic Approach to Spirooxindolo‐2‐iminothiazolidine Scaffolds. ChemistrySelect 2020. [DOI: 10.1002/slct.201904397] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sonal Bhandari
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Akash P. Sakla
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Nagula Shankaraiah
- Department of Medicinal ChemistryNational Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
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12
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Jena TK, Khan FA. Acid mediated synthesis of thiazolines, thiazoles and enamide derivatives from methyl enol ethers: Application towards synthesis of wilsoniamine B. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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13
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Abstract
:Over the last decades, many methods have been reported for the synthesis of selenium- heterocyclic scaffolds because of their interesting reactivities and applications in the medicinal as well as in the material chemistry. This review describes the recent numerous useful methodologies on C-Se bond formation reactions which were basically carried out at low and room temperature.
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Affiliation(s)
- Amol D. Sonawane
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Mamoru Koketsu
- Department of Chemistry and Biomolecular Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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14
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Dogra A, Gupta N. Aluminum‐Based Catalysts for Cycloaddition Reactions: Moving One Step Ahead in Sustainability. ChemistrySelect 2019. [DOI: 10.1002/slct.201902613] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ashima Dogra
- School of ChemistryShoolini University Bajhol, Solan (HP India
| | - Neeraj Gupta
- School of ChemistryShoolini University Bajhol, Solan (HP India
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15
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Sandeep K, Siva Reddy A, Kumara Swamy KC. Cu(i) catalysed annulation of isothiocyanates/isocyanates with 2-iodo-sulfonamides: synthesis of benzodithiazines, benzothiadiazinones, benzothiazinylidene-anilines and benzothiazolylidene-anilines. Org Biomol Chem 2019; 17:6880-6894. [PMID: 31270513 DOI: 10.1039/c9ob00994a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient Cu(i)-catalysed cyclisation reaction of 2-iodobenzene sulfonamides with aryl-isothiocyanates and isocyanates that affords functionalised benzodithiazines and benzothiadiazinones, respectively, has been developed. Thus, in the reaction with aryl isothiocyanates (Ar-N[double bond, length as m-dash]C[double bond, length as m-dash]S), the C[double bond, length as m-dash]S moiety participates in the cyclisation leading to a dithiazine. By contrast, in the case of aryl isocyanates (Ar-N[double bond, length as m-dash]C[double bond, length as m-dash]O), the N[double bond, length as m-dash]C part is involved in the cyclisation and a thiadiazinone is obtained. Analogous reactions of isothiocyanates with N-tosyl-2-iodo-anilines and 2-iodo-benzyl sulfonamides afford (benzothiazin-2-ylidene)anilines and (benzothiazol-2-ylidene)anilines, respectively. Probable mechanistic pathways are briefly discussed.
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Affiliation(s)
- K Sandeep
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
| | - Alla Siva Reddy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
| | - K C Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
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16
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A facile and efficient carbocatalytic route to quaternary C-bearing N-tosylaziridines from Morita-Baylis-Hillman adduct in water. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.05.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Singh GS. Advances in synthesis and chemistry of aziridines. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.12.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Satheesh V, Srivastava HK, Kumar SV, Sengoden M, Punniyamurthy T. Stereospecific Al‐Catalysed Tandem
C−N
/
C−Se
Bond Formation of Isoselenocyanates with Aziridines: Synthesis and DFT Study. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Vanaparthi Satheesh
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | | | | | - Mani Sengoden
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
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19
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Xuan J, Cao X, Cheng X. Advances in heterocycle synthesis via [3+m]-cycloaddition reactions involving an azaoxyallyl cation as the key intermediate. Chem Commun (Camb) 2018; 54:5154-5163. [DOI: 10.1039/c8cc00787j] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This feature article highlights recent advances in heterocycle synthesis via [3+m]-cycloaddition reactions involving an azaoxyallyl cation as the key intermediate.
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Affiliation(s)
- Jun Xuan
- Department of Chemistry
- Anhui University
- Hefei
- China
| | - Xia Cao
- Department of Chemistry
- Anhui University
- Hefei
- China
| | - Xiao Cheng
- Department of Chemistry
- Anhui University
- Hefei
- China
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20
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Zeng F, Zhang L, Shao X, Li Z, Xu X. Catalyst-free synthesis of thiazolidines via sequential hydrolysis/rearrangement reactions of 5-arylidenethiazolidin-4-ones at room temperature. Org Biomol Chem 2018; 16:1932-1938. [DOI: 10.1039/c7ob02924a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Functionalized thiazolidines were obtained via the rearrangement reactions of 5-arylidenethiazolidin-4-ones at room temperature.
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Affiliation(s)
- Fanxun Zeng
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Letian Zhang
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Xusheng Shao
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Xiaoyong Xu
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai 200237
- China
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21
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Anitha M, Swamy KCK. Synthesis of thiazolidine-thiones, imino-thiazolidines and oxazolidines via the base promoted cyclisation of epoxy-sulfonamides and heterocumulenes. Org Biomol Chem 2018; 16:402-413. [DOI: 10.1039/c7ob02915b] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Epoxy-sulfonamides react with heterocumulenes (CS2/RNCS/RNCO) in the presence of a base to afford ring expansion products in good to high yields with excellent regioselectivity.
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Affiliation(s)
- Mandala Anitha
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
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22
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Wang G, Zhao S, Chen R, Yang L, Wang J, Guo H, Wu M, Domena J, Xing Y, Sun S. Synthesis of thiazolidin-4-ones via [3+2] cycloaddition of in situ generated aza-oxyallylic cations with isothiocyanates. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.10.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Silva S, Maycock CD. Chemoenzymatic preparation of optically active cyclic 4-hydroxy-acylaziridines. Org Chem Front 2017. [DOI: 10.1039/c7qo00254h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective chemoenzymatic route to cyclic 4-hydroxyacylaziridines is described.
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Affiliation(s)
- Saúl Silva
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
| | - Christopher D. Maycock
- Instituto de Tecnologia Química e Biológica António Xavier
- Universidade Nova de Lisboa
- 2780-157 Oeiras
- Portugal
- Faculdade de Ciências da Universidade de Lisboa
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24
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Shukla P, Mahata S, Sahu A, Singh M, Rai VK, Rai A. First graphene oxide promoted metal-free nitrene insertion into olefins in water: towards facile synthesis of activated aziridines. RSC Adv 2017. [DOI: 10.1039/c7ra09351a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A facile metal-free graphene oxide (GO)-catalyzed synthesis of tosylaziridines using PhINTs as the nitrene source is reported.
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Affiliation(s)
- Prashant Shukla
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi
- India
| | - Suhasini Mahata
- Department of Chemistry
- School of Physical Sciences
- Guru Ghasidas Vishwavidyalaya
- Bilaspur (C.G.)-495009
- India
| | - Anjumala Sahu
- Department of Chemistry
- School of Physical Sciences
- Guru Ghasidas Vishwavidyalaya
- Bilaspur (C.G.)-495009
- India
| | - Manorama Singh
- Department of Chemistry
- School of Physical Sciences
- Guru Ghasidas Vishwavidyalaya
- Bilaspur (C.G.)-495009
- India
| | - Vijai K. Rai
- Department of Chemistry
- School of Physical Sciences
- Guru Ghasidas Vishwavidyalaya
- Bilaspur (C.G.)-495009
- India
| | - Ankita Rai
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi
- India
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