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Meng Y, Gu J, Xin M, Jiang Y, Du Z, Lu G, Jiang J, Chan ASC, Ke Z, Zou Y. Chalcone-Based Synthesis of Tetrahydropyridazines via Cloke-Wilson-Type Rearrangement-Involved Tandem Reaction between Cyclopropyl Ketones and Hydrazines. J Org Chem 2024; 89:2726-2740. [PMID: 38307838 DOI: 10.1021/acs.joc.3c02824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2024]
Abstract
A facile and efficient approach for the synthesis of multisubstituted tetrahydropyridazines starting from cyclopropyl ketones and hydrazines has been developed. The transformation is chalcone-based and takes place via a Cloke-Wilson-type rearrangement-involved tandem reaction catalyzed by TfOH in HFIP.
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Affiliation(s)
- Yingfen Meng
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jiayi Gu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Meixiu Xin
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Yi Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Zhibo Du
- Zhongshan WanHan Pharmceutical Company, Ltd., Zhongshan 528451, People's Republic of China
| | - Guoqing Lu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Jiayao Jiang
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Albert S C Chan
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Yong Zou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
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2
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Wu Y, Wu X, Liu L, Yu JT, Pan C. Photocatalytic Carbosulfonylation/Cyclization of N-Homoallyl and N-Allyl Aldehyde Hydrazones toward Sulfonylated Tetrahydropyridazines and Dihydropyrazoles. Org Lett 2024; 26:122-126. [PMID: 38160407 DOI: 10.1021/acs.orglett.3c03733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
N'-Benzylidene-N-homoallylacetohydrazides were designed and synthesized as novel skeletons for the construction of functionalized tetrahydropyridazines. A series of aryl- and alkylsulfonylated tetrahydropyridazines were obtained in yields of up to 94% employing sulfonyl chlorides as the sulfonyl radical sources under visible-light irradiation. Besides, sulfonylated dihydropyrazoles were also produced from N-allyl-N'-benzylideneacetohydrazides. Mechanistic investigations indicated that both energy transfer and single electron transfer processes were involved in accomplishing the radical 6/5-endo-trig cyclization to the C═N bond.
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Affiliation(s)
- Yechun Wu
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Xian Wu
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Lingli Liu
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Changduo Pan
- School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
- School of Chemistry and Chemical Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China
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3
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Notz S, Scharf S, Lang H. Jumping in the Chiral Pool: Asymmetric Hydroaminations with Early Metals. Molecules 2023; 28:molecules28062702. [PMID: 36985673 PMCID: PMC10058505 DOI: 10.3390/molecules28062702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/19/2023] Open
Abstract
The application of early-metal-based catalysts featuring natural chiral pool motifs, such as amino acids, terpenes and alkaloids, in hydroamination reactions is discussed and compared to those beyond the chiral pool. In particular, alkaline (Li), alkaline earth (Mg, Ca), rare earth (Y, La, Nd, Sm, Lu), group IV (Ti, Zr, Hf) metal-, and tantalum-based catalytic systems are described, which in recent years improved considerably and have become more practical in their usability. Additional emphasis is directed towards their catalytic performance including yields and regio- as well as stereoselectivity in comparison with the group IV and V transition metals and more widely used rare earth metal-based catalysts.
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Navarro M, Alférez MG, de Sousa M, Miranda-Pizarro J, Campos J. Dicoordinate Au(I)-Ethylene Complexes as Hydroamination Catalysts. ACS Catal 2022; 12:4227-4241. [PMID: 35391904 PMCID: PMC8981211 DOI: 10.1021/acscatal.1c05823] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 03/12/2022] [Indexed: 01/22/2023]
Abstract
A series of gold(I)-ethylene π-complexes containing a family of bulky phosphine ligands has been prepared. The use of these sterically congested ligands is crucial to stabilize the gold(I)-ethylene bond and prevent decomposition, boosting up their catalytic performance in the highly underexplored hydroamination of ethylene. The precatalysts bearing the most sterically demanding phosphines showed the best results reaching full conversion to the hydroaminated products under notably mild conditions (1 bar of ethylene pressure at 60 °C). Kinetic analysis together with density functional theory calculations revealed that the assistance of a second molecule of the nucleophile as a proton shuttle is preferred even when using an extremely congested cavity-shaped Au(I) complex. In addition, we have measured a strong primary kinetic isotopic effect that is consistent with the involvement of X-H bond-breaking events in the protodeauration turnover-limiting step.
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Affiliation(s)
- Miquel Navarro
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Macarena G. Alférez
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Morgane de Sousa
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Juan Miranda-Pizarro
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
| | - Jesús Campos
- Departamento
de Química Inorgánica and Centro de Innovación
en Química Avanzada (ORFEO-CINQA), Instituto de Investigaciones Químicas (IIQ), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Sevilla 41092, Spain
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5
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Yang R, Yue S, Tan W, Xie Y, Cai H. DMSO/ t-BuONa/O 2-Mediated Aerobic Dehydrogenation of Saturated N-Heterocycles. J Org Chem 2020; 85:7501-7509. [PMID: 32368910 DOI: 10.1021/acs.joc.9b03447] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Aromatic N-heterocycles such as quinolines, isoquinolines, and indolines are synthesized via sodium tert-butoxide-promoted oxidative dehydrogenation of the saturated heterocycles in DMSO solution. This reaction proceeds under mild reaction conditions and has a good functional group tolerance. Mechanistic studies suggest a radical pathway involving hydrogen abstraction of dimsyl radicals from the N-H bond or α-C-H of the substrates and subsequent oxidation of the nitrogen or α-aminoalkyl radicals.
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Affiliation(s)
- Ruchun Yang
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China.,Institute of Organic Chemistry, Jiangxi Science & Technology Normal University, Key Laboratory of Organic Chemistry, Nanchang, Jiangxi 330013, China
| | - Shusheng Yue
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Wei Tan
- Clinic Laboratory, People's Hospital of Yichun City, Yichun, Jiangxi 336000, China
| | - Yongfa Xie
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Hu Cai
- College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
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Guo Y, Zhao J, Zhang Q. Synthesis of Tetrahydropyridazines
via
Pd‐Catalyzed Carboamination of Alkenyl Hydrazones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yajing Guo
- Department of Chemistry, Key Laboratory of Functional Molecule Design and Synthesis of Jilin ProvinceNortheast Normal University Changchun 130024 People's Republic of China
| | - Jinbo Zhao
- Department of Chemistry, Key Laboratory of Functional Molecule Design and Synthesis of Jilin ProvinceNortheast Normal University Changchun 130024 People's Republic of China
| | - Qian Zhang
- Department of Chemistry, Key Laboratory of Functional Molecule Design and Synthesis of Jilin ProvinceNortheast Normal University Changchun 130024 People's Republic of China
- State Key Laboratory of Organometallic ChemistryShanghai Institute of Organic Chemistry 345 Lingling Rd Shanghai 200032 People's Republic of China
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7
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Ivanovich RA, Quartus JAM, Das Neves N, Loiseau F, Raymond M, Beauchemin AM. Aminimide Synthesis Using Concerted Amination Reactions of Alkenes: Scope and Mechanistic Information. J Org Chem 2019; 84:9792-9800. [PMID: 31290665 DOI: 10.1021/acs.joc.9b01259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Aminimides are key intermediates in the thermal cycloadditions of suitable alkenyl-hydrazine derivatives. Substrate modifications (β-N,N-dialkyl) allowed the isolation of these reactive intermediates, and the analysis of their stereochemistry provided support for concerted (Cope-type) hydroamination and concerted [3 + 2] aminocarbonylation reaction pathways. This work also establishes the applicability of these approaches to form complex aminimides in moderate to excellent yields.
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Affiliation(s)
- Ryan A Ivanovich
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , Ontario K1N 6N5 , Canada
| | - Jasper A M Quartus
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , Ontario K1N 6N5 , Canada
| | - Nicolas Das Neves
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , Ontario K1N 6N5 , Canada
| | - Francis Loiseau
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , Ontario K1N 6N5 , Canada
| | - Michaël Raymond
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , Ontario K1N 6N5 , Canada
| | - André M Beauchemin
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences , University of Ottawa , 10 Marie-Curie , Ottawa , Ontario K1N 6N5 , Canada
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8
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Chen M, Qi L, Chen JM, Ren PX, Du J, Wang LJ, Li W. Synthesis of acyloxyl pyrazolines by copper-mediated aminoacyloxylation of unsaturated ketohydrazones. Org Biomol Chem 2018; 16:5136-5143. [PMID: 29961788 DOI: 10.1039/c8ob01114a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient and step-economical copper-mediated intra-/intermolecular aminoacyloxylation of β,γ-unsaturated hydrazones has been developed. Copper carboxylates serve as both reaction promoters and carboxylate sources in these easily conducted reactions. This method provides straightforward access to diversely useful acyloxyl pyrazolines, which are hard to access traditionally, in good to excellent yields.
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Affiliation(s)
- Manman Chen
- College of Chemistry & Environmental Science, Hebei University, 180 Wusi Donglu, Baoding 071002, P. R. China.
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