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Li W, Xin J, Zhai P, Lin J, Huang S, Gao W, Li X. Access to highly functionalized imidazolones bearing α-amino acid esters via KOH-promoted annulation of amidines, nitrosoarenes and malonic esters. Org Biomol Chem 2021; 19:6473-6477. [PMID: 34236374 DOI: 10.1039/d1ob00930c] [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
An efficient approach to obtain highly functionalized imidazolones bearing α-amino acid esters through KOH-mediated one-pot three-component annulation of amidines, nitrosoarenes and malonic esters is reported. This reaction features broad substrate scope, a cheap and readily available promoter, good to high yields for most substrates and mild reaction conditions. The mechanism study shows that the KOH-mediated formation of the imine intermediate via the reaction of nitrosoarenes with malonic esters is a key step.
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Affiliation(s)
- Wenhui Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Jie Xin
- Feicheng Hospital Affiliated to Shandong First Medical University, Feicheng 271600, China
| | - Pingan Zhai
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Jianying Lin
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Shuangping Huang
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Wenchao Gao
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
| | - Xing Li
- College of Biomedical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, China.
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Méndez I, Ferrer C, Rodríguez R, Lahoz FJ, García-Orduña P, Carmona D. Catalytic Enantioselective Alkylation of Indoles with trans-4-Methylthio-β-Nitrostyrene. ACS OMEGA 2020; 5:27978-27989. [PMID: 33163781 PMCID: PMC7643163 DOI: 10.1021/acsomega.0c03485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 09/16/2020] [Indexed: 06/11/2023]
Abstract
The reaction of the rhodium aqua-complex (S Rh,R C)-[Cp*Rh{(R)-Prophos} (OH2)][SbF6]2 [Cp* = C5Me5, Prophos = propane-1,2-diyl-bis(diphenylphosphane)] (1) with trans-4-methylthio-β-nitrostyrene (MTNS) gives two linkage isomers (S Rh,R C)-[Cp*Rh{(R)-Prophos}(κ1 O-MTNS)]2+ (3-O) and (S Rh,R C)-[Cp*Rh{(R)-Prophos}(κ1 S-MTNS)]2+ (3-S) in which the nitrostyrene binds the metal through one of the oxygen atoms of the nitro group or through the sulfur atom, respectively. Both isomers are in equilibrium in dichloromethane solution, the equilibrium constant being affected by the temperature in such a way that when the temperature increases, the relative concentration of the oxygen-bonded isomer 3-O increases. The homologue aqua-complex of iridium, (S Ir,R C)-[Cp*Ir{(R)-Prophos}(OH2)][SbF6]2 (2), also reacts with MTNS; but only the sulfur-coordinated isomer (S Ir,R C)-[Cp*Ir{(R)-Prophos}(κ1 S-MTNS)]2+ (4-S) is detected in the solution by NMR spectroscopy. The crystal structures of 3-S and 4-S have been elucidated by X-ray diffractometric methods. Complexes 1 and 2 catalyze the Friedel-Crafts reaction of indole, N-methylindole, 2-methylindole, or N-methyl-2-methylindole with MTNS. Up to 93% ee has been achieved for N-methyl-2-methylindole. With this indole, the ee increases as conversion increases, ee at 263 K is lower than that obtained at 298 K, and the sign of the chirality of the major enantiomer changes at temperatures below 263 K. Detection and characterization of the catalytic intermediates metal-aci-nitro and the free aci-nitro compound as well as detection of the Friedel-Crafts (FC)-adduct complex involved in the catalysis allowed us to propose a plausible double cycle that accounts for the catalytic observations.
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Dyachenko VD, Sukach SM, Morkovnik AS. 2-Acylcycloalkanones in Organic Synthesis. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020060019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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4
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2D-2D Nanocomposite of MoS2-Graphitic Carbon Nitride as Multifunctional Catalyst for Sustainable Synthesis of C3-Functionalized Indoles. ChemCatChem 2018. [DOI: 10.1002/cctc.201800369] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zuo Y, Yang N, Huang X, Hu C, Su Z. Mechanism and Origins of Stereoinduction in an Asymmetric Friedel–Crafts Alkylation Reaction of Chalcone Catalyzed by Chiral N,N′-Dioxide–Sc(III) Complex. J Org Chem 2018; 83:4628-4640. [DOI: 10.1021/acs.joc.8b00387] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yini Zuo
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Na Yang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Xunkun Huang
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Changwei Hu
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
| | - Zhishan Su
- Key Laboratory of Green Chemistry and Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, P. R. China
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Djukanovic D, Petkovic M, Simic M, Jovanovic P, Tasic G, Savic V. Synthesis of 2-unsubstituted imidazolones from bisamides via a one-pot, domino dehydration/base promoted cyclisation process. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.01.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Rani V, Singh HB, Butcher RJ. Cationic NCN Palladium(II) Pincer Complexes of 5-tert-Butyl-1,3-bis(N-substituted benzimidazol-2′-yl)benzenes: Synthesis, Structure, and Pd···Pd Metallophilic Interaction. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00620] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Varsha Rani
- Department
of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Harkesh B. Singh
- Department
of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Ray J. Butcher
- Department
of Chemistry, Howard University, 525 College Street NW, Washington, D.C. 20059, United States
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Méndez I, Rodríguez R, Polo V, Passarelli V, Lahoz FJ, García-Orduña P, Carmona D. Temperature Dual Enantioselective Control in a Rhodium-Catalyzed Michael-Type Friedel-Crafts Reaction: A Mechanistic Explanation. Chemistry 2016; 22:11064-83. [DOI: 10.1002/chem.201601301] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Isabel Méndez
- Departamento de Catálisis y Procesos Catalíticos; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC -; Universidad de Zaragoza; Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Ricardo Rodríguez
- Departamento de Catálisis y Procesos Catalíticos; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC -; Universidad de Zaragoza; Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Víctor Polo
- Departamento de Química Física; Universidad de Zaragoza; Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Vincenzo Passarelli
- Departamento de Catálisis y Procesos Catalíticos; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC -; Universidad de Zaragoza; Pedro Cerbuna 12 50009 Zaragoza Spain
- Centro Universitario de la Defensa; Ctra. Huesca s/n 50090 Zaragoza Spain
| | - Fernando J. Lahoz
- Departamento de Catálisis y Procesos Catalíticos; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC -; Universidad de Zaragoza; Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Pilar García-Orduña
- Departamento de Catálisis y Procesos Catalíticos; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC -; Universidad de Zaragoza; Pedro Cerbuna 12 50009 Zaragoza Spain
| | - Daniel Carmona
- Departamento de Catálisis y Procesos Catalíticos; Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC -; Universidad de Zaragoza; Pedro Cerbuna 12 50009 Zaragoza Spain
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Carmona D, Méndez I, Rodrı́guez R, Lahoz FJ, Garcı́a-Orduña P, Oro LA. Metal–Nitroalkene and aci-Nitro Intermediates in Catalytic Enantioselective Friedel–Crafts Reactions of Indoles with trans-β-Nitrostyrenes. Organometallics 2014. [DOI: 10.1021/om401125q] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel Carmona
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Isabel Méndez
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Ricardo Rodrı́guez
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Fernando J. Lahoz
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Pilar Garcı́a-Orduña
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Luis A. Oro
- Departamento
de Quı́mica Inorgánica, Instituto de Sı́ntesis
Quı́mica y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
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