1
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Ghosh A, Lipisa YB, Fridman N, Szpilman AM. 2-Nitro-cyclopropyl-1-carbonyl Compounds from Unsaturated Carbonyl Compounds and Nitromethane via Enolonium Species. J Org Chem 2023; 88:1977-1987. [PMID: 36749318 DOI: 10.1021/acs.joc.2c02125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
2-Nitrocyclopropanes bearing ketones, amides, esters, and carboxylic acids in the 1 position may be accessed as single diastereoisomers in one operation from the corresponding unsaturated carbonyl compounds. The source of the nitro-methylene component is nitromethane. The reaction proceeds at room temperature under mild conditions. The products may be converted into, e.g., cyclopropyl-amino acids in a single step. Both nitrocyclopropanes and amino-cyclopropanes are unique moieties found in biologically active compounds and natural products.
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Affiliation(s)
- Asit Ghosh
- Department of Chemical Sciences, Ariel University, Ariel 4070000, Israel
| | - Yuriy B Lipisa
- Department of Chemical Sciences, Ariel University, Ariel 4070000, Israel
| | - Natalia Fridman
- Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 3200009, Israel
| | - Alex M Szpilman
- Department of Chemical Sciences, Ariel University, Ariel 4070000, Israel
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2
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Mityanov VS, Podrezova AG, Kutasevich AV, Pytskii IS, Khrustalev VN. Boron Trifluoride‐Mediated Synthesis of Oxazole
N
‐oxides. ChemistrySelect 2022. [DOI: 10.1002/slct.202203421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Vitaly S. Mityanov
- Department of Fine Organic Synthesis and Chemistry of Dyes Mendeleev University of Chemical Technology Miusskaya Sq., 9 Moscow 125047 Russian Federation
| | - Alexandra G. Podrezova
- Department of Fine Organic Synthesis and Chemistry of Dyes Mendeleev University of Chemical Technology Miusskaya Sq., 9 Moscow 125047 Russian Federation
| | - Anton V. Kutasevich
- Department of Fine Organic Synthesis and Chemistry of Dyes Mendeleev University of Chemical Technology Miusskaya Sq., 9 Moscow 125047 Russian Federation
| | - Ivan S. Pytskii
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry Academy of Sciences Leninsky prospect 31 bldg. 4 119071 Moscow Russian Federation
| | - Victor N. Khrustalev
- N.D. Zelinsky Institute of Organic Chemistry Russian Academy of Sciences Leninsky Prosp. 47 119071 Moscow Russian Federation
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3
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Battula S, Desai AA, Soni JY, Mehta DP. Accessing Grignard Reluctant Aldehyde in 2-Oxoaldehyde by Organocuprates to Give [1,2] Addition and Oxidative Coupling Reactions. ACS OMEGA 2022; 7:5069-5078. [PMID: 35187323 PMCID: PMC8851654 DOI: 10.1021/acsomega.1c06031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/20/2022] [Indexed: 06/14/2023]
Abstract
Novel finding of aldehyde in 2-oxoaldehyde (2OA) is presented as it unprecedentedly disinclines to react with Grignard reagents but reacts with moderate organocuprate reagents in anaerobic condition to give [1,2] addition (α-hydroxyketones) reaction. In the presence of air, the reaction produces an efficient protocol for the synthesis of 1,2-diones through a copper-catalyzed oxidative cross-coupling reaction at room temperature. Mechanistic studies indicate that α-hydroxy ketone perhaps is generated before the hydrolysis step/acid work-up process. The α-keto group of 2OA causes to exhibit this peculiar aldehyde behavior toward these organometallic reagents.
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Affiliation(s)
- Satyanarayana Battula
- Tarsadia
Institute of Chemical Sciences, Uka Tarsadia
University, Bardoli, Gujarat 394350, India
| | - Aman A. Desai
- Aether
Industries Pvt. Ltd., Sachin, Surat, Gujarat 394230, India
| | - Jigar Y. Soni
- Department
of Chemistry, Madhav University, Abu Road, Sirohi, Rajasthan 307026, India
| | - Dhruv P. Mehta
- Aether
Industries Pvt. Ltd., Sachin, Surat, Gujarat 394230, India
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4
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Gujjarappa R, Vodnala N, Musib D, Malakar CC. Organocatalytic Decarboxylation and Dual C(sp
3
)−H Bond Functionalization Toward Facile Access to Divergent 2,6‐Diarylpyridines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Raghuram Gujjarappa
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Nagaraju Vodnala
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
- Department of Chemistry Indian Institute of Technology Delhi Multi-storey building, HauzKhas New Delhi 110016 India
| | - Dulal Musib
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
| | - Chandi C. Malakar
- Department of Chemistry National Institute of Technology Manipur Langol Imphal 795004 Manipur India
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5
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Vetica F, Bortolami M, Petrucci R, Rocco D, Feroci M. Electrogenerated NHCs in Organic Synthesis: Ionic Liquids vs Organic Solvents Effects. CHEM REC 2021; 21:2130-2147. [PMID: 33507627 DOI: 10.1002/tcr.202000178] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/08/2021] [Indexed: 12/14/2022]
Abstract
In the last twenty years, N-heterocyclic carbenes (NHCs) have been extensively studied for their application as organocatalysts in stereoselective synthesis as well as ligands for transition metals-promoted synthetic methodologies. Derived mainly from azolium salts, NHCs have demonstrated exceptional versatility in their generation usually performed by deprotonation or reduction (chemical or electrochemical). In particular, the generation of NHC under electrochemical conditions, starting from azolium-based ionic liquids, has proven to be a successful green approach and demonstrated wide applicability in organic synthesis. In this Personal Account, the application of electrogenerated NHCs in organic synthesis will be discussed, with a particular attention to the different reactivity in ionic liquids compared to classical organic solvents.
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Affiliation(s)
- Fabrizio Vetica
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Rome, Italy
| | - Martina Bortolami
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via Castro Laurenziano 7, 00161, Rome, Italy
| | - Rita Petrucci
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via Castro Laurenziano 7, 00161, Rome, Italy
| | - Daniele Rocco
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via Castro Laurenziano 7, 00161, Rome, Italy
| | - Marta Feroci
- Department of Basic and Applied Sciences for Engineering (SBAI), Sapienza University of Rome, Via Castro Laurenziano 7, 00161, Rome, Italy
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6
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Xue K, Sun G, Zhang Y, Chen X, Zhou Y, Hou J, Long H, Zhang Z, Lei M, Wu W. A new method for the synthesis of chalcone derivatives promoted by PPh3/I2under non-alkaline conditions. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1847295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Kangsheng Xue
- College of Pharmacy, Changchun University of Chinese Medicine, Changchun, P. R. China
| | - Guoxiang Sun
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu, P. R. China
| | - Yanzhi Zhang
- College of Pharmacy, Dali University, Dali, P. R. China
| | - Xubing Chen
- College of Pharmacy, Dali University, Dali, P. R. China
| | - Yang Zhou
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Jinjun Hou
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Huali Long
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Zijia Zhang
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Min Lei
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
| | - Wanying Wu
- Shanghai Research Center for Modernization of Traditional Chinese Medicine, National Engineering Laboratory for TCM Standardization Technology, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, P. R. China
- University of Chinese Academy of Sciences, Beijing, P. R. China
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7
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Debiais M, Hamoud A, Drain R, Barthélémy P, Desvergnes V. Bio-inspired NHC-organocatalyzed Stetter reaction in aqueous conditions. RSC Adv 2020; 10:40709-40718. [PMID: 35519190 PMCID: PMC9057722 DOI: 10.1039/d0ra08326g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/02/2020] [Indexed: 12/18/2022] Open
Abstract
The first bio-inspired N-Heterocyclic Carbene (NHC)-catalyzed Stetter reaction in aqueous medium is reported with benzaldehyde and chalcone as model substrates. A screening of azolium salts as precatalysts revealed the remarkable efficiency of synthetic thiazolium salt 8 (up to 90% conversion in pure water at 75 °C). The reaction was successfully extended to various simple aldehyde substrates. The effect of temperature was also investigated in order to extend the reaction to lower temperature allowing a potential application to sensitive biomolecules. This study highlighted the influence of both solvent and temperature on the 1,4-diketone 3/benzoin 4 ratio. New precatalysts 26 and 27 were designed and synthesized to explore a possible compartmentalization of the reaction in aqueous conditions. Owing to the use of inexpensive metal-free N-Heterocyclic Carbene (NHC) as a bioinspired catalyst, we anticipate that this green strategy in aqueous conditions will be attractive for bioconjugation of many biomolecule-type aldehydes and enone derivatives.
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Affiliation(s)
- Mégane Debiais
- Univ. Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212 F-33000 Bordeaux France +33 557571176.,ChemBioPharm Team 146 Rue Leo Saignat, UFR Pharmacie, 3ième Tranche, 4ième étage 33076 Bordeaux Cedex France
| | - Aladin Hamoud
- Univ. Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212 F-33000 Bordeaux France +33 557571176.,ChemBioPharm Team 146 Rue Leo Saignat, UFR Pharmacie, 3ième Tranche, 4ième étage 33076 Bordeaux Cedex France
| | - Reihana Drain
- Univ. Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212 F-33000 Bordeaux France +33 557571176.,ChemBioPharm Team 146 Rue Leo Saignat, UFR Pharmacie, 3ième Tranche, 4ième étage 33076 Bordeaux Cedex France
| | - Philippe Barthélémy
- Univ. Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212 F-33000 Bordeaux France +33 557571176.,ChemBioPharm Team 146 Rue Leo Saignat, UFR Pharmacie, 3ième Tranche, 4ième étage 33076 Bordeaux Cedex France
| | - Valérie Desvergnes
- Univ. Bordeaux, CNRS, INSERM, ARNA, UMR 5320, U1212 F-33000 Bordeaux France +33 557571176.,ChemBioPharm Team 146 Rue Leo Saignat, UFR Pharmacie, 3ième Tranche, 4ième étage 33076 Bordeaux Cedex France
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8
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9
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Li Y, Xu Z, Xie Z, Guan X, Xie Z. Total Synthesis of Nominal ent-Chlorabietol B. J Org Chem 2020; 85:5724-5732. [PMID: 32212620 DOI: 10.1021/acs.joc.0c00233] [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
The nominal enantiomer of chlorabietol B was regio- and stereoselectively synthesized from (-)-abietic acid in 13 steps. Key features of the synthesis involved an oxidative [3+2] cycloaddition to install the dihydrobenzofuran moiety and an Aldol reaction, followed by elimination and reduction steps to introduce the long chain with three cis double bonds. However, obvious differences in the NMR spectra of the synthetic and natural samples suggested that the proposed structure of chlorabietol B should be revised carefully.
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Affiliation(s)
- Yulong Li
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Zhezhe Xu
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Zhipeng Xie
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Xingchao Guan
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Zhixiang Xie
- State Key Laboratory of Applied Organic Chemistry & College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
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10
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Gujjarappa R, Vodnala N, Reddy VG, Malakar CC. Niacin as a Potent Organocatalyst towards the Synthesis of Quinazolines Using Nitriles as C-N Source. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901651] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Raghuram Gujjarappa
- Department of Chemistry; National Institute of Technology Manipur, Langol; 795004 Imphal Manipur India
| | - Nagaraju Vodnala
- Department of Chemistry; National Institute of Technology Manipur, Langol; 795004 Imphal Manipur India
| | - Velma Ganga Reddy
- Centre for Advanced Materials & Industrial Chemistry (CAMIC); School of Science; RMIT University; GPO Box 2476 3001 Melbourne Australia
| | - Chandi C. Malakar
- Department of Chemistry; National Institute of Technology Manipur, Langol; 795004 Imphal Manipur India
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11
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Chang MY, Chen HY, Tsai YL. NH 2OH-HCl-Mediated Umpolung α-Methylsulfonylation of α-Sulfonyl Ketones with Methylsulfoxides: Synthesis of α,β-Bis-sulfonyl Arylketones. Org Lett 2019; 21:1832-1836. [PMID: 30788972 DOI: 10.1021/acs.orglett.9b00422] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this paper, a novel and efficient route for the synthesis of α,β-bis-sulfonyl arylketones via an NH2OH-HCl-mediated intermolecular umpolung α-methylsulfonylation of α-sulfonyl ketones with methylsulfoxides is described. A plausible mechanism is proposed and discussed. Various reaction conditions for this efficient, one-pot, environmentally friendly transformation were investigated.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan.,Department of Medical Research , Kaohsiung Medical University Hospital , Kaohsiung 807 , Taiwan
| | - Han-Yu Chen
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
| | - Yu-Lin Tsai
- Department of Medicinal and Applied Chemistry , Kaohsiung Medical University , Kaohsiung 807 , Taiwan
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12
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NHC-Catalyzed Organocatalytic Asymmetric Approach to 2,2-Disubstituted Benzofuran-3(2H)-ones Containing Fully Substituted Quaternary Stereogenic Center. Catalysts 2019. [DOI: 10.3390/catal9020192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A highly efficient and enantioselective approach to the synthesis of functionalized benzofuran-3(2H)-ones is presented. It proceeds via an intramolecular Stetter reaction using β,β-disubstituted Michael acceptors in the construction of five-membered rings with fully-substituted quaternary stereogenic centers and is promoted by terpene-derived triazolium salts. As a result, a series of chiral 2,2-disubstituted benzofuran-3(2H)-one derivatives with linear, branched, and cyclic aliphatic substitutions on the quaternary stereogenic center were obtained in high yields and with excellent enantioselectivities of up to 99% ee.
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