1
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Luo X, Yang Z, Zheng J, Liang G, Luo H, Yang W. CuX Dual Catalysis: Construction of Oxazolo[2,3- b][1,3]oxazines via a Tandem CuAAC/Ring Cleavage/[4+2+3] Annulation Reaction. Org Lett 2022; 24:7300-7304. [PMID: 36178978 DOI: 10.1021/acs.orglett.2c02705] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
CuX as a simple dual catalyst strategy that promotes the tandem transformations of fused oxazolo[2,3-b][1,3]oxazines has been developed. Copper catalyzed terminal ynones, sulfonyl azides, and nitriles for the CuAAC/ring cleavage/[4+2] annulation reaction, while the halogen catalyzed ring cleavage and [2+3] annulation of oxiranes to form the final fused products. This study provides a four-component, one-pot strategy for synthesizing complex fused heterocycles from simple ingredients and expands the application of CuAAC in organic synthesis.
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Affiliation(s)
- Xiai Luo
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China.,School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua 418000, China
| | - Zhongtao Yang
- The Marine Biomedical Research Institute of Guangdong, Zhanjiang 524023, China
| | - Jia Zheng
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China
| | - Gang Liang
- School of Basic Medical Sciences, Guangxi Medical University, Nanning 530021, China
| | - Hui Luo
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China
| | - Weiguang Yang
- Public Service Platform of South China Sea for R&D Marine Biomedicine Resources, The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China
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2
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[4 + 3] Cycloaddition of ketenimines with furocarbenoids: Divergent and efficient synthesis of fused cycloheptatriene and tropone scaffolds. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.107823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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3
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Pothikumar R, Sivaraj C, Giridharan K, Ravva MK, Namitharan K. Stereoselective Addition of Alkynes to Ketenimines: Copper/Amine Catalyzed Sulfonyl Azide-Alkyne Cycloaddition Reactions for the Synthesis of ( Z)-1,3-Enynes. Org Lett 2022; 24:4310-4315. [PMID: 35696547 DOI: 10.1021/acs.orglett.2c01180] [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
Herein, we report a copper/amine catalyzed stereoselective addition of alkynes to ketenimine intermediates generated in situ from the sulfonyl azide-alkyne cycloaddition cascade for the stereoselective synthesis of (Z)-1,3-enynes. Significantly, for the first-time, enamine intermediates generated in the copper-catalyzed sulfonyl azide-alkyne cycloaddition reactions have been successfully trapped and isolated as the products. Density functional theory computations have also been performed and found to be consistent with the observed experimental stereoselectivity.
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Affiliation(s)
- Rajagopal Pothikumar
- Organic Synthesis and Catalysis Laboratory, Department of Chemistry, SRM Research Institute, SRM Institute of Science and Technology, Chennai 603 203, India
| | - Chandrasekaran Sivaraj
- Organic Synthesis and Catalysis Laboratory, Department of Chemistry, SRM Research Institute, SRM Institute of Science and Technology, Chennai 603 203, India
| | - Kayambu Giridharan
- Organic Synthesis and Catalysis Laboratory, Department of Chemistry, SRM Research Institute, SRM Institute of Science and Technology, Chennai 603 203, India
| | - Mahesh Kumar Ravva
- Department of Chemistry, SRM University-AP, Amaravati, Andhra Pradesh 522502, India
| | - Kayambu Namitharan
- Organic Synthesis and Catalysis Laboratory, Department of Chemistry, SRM Research Institute, SRM Institute of Science and Technology, Chennai 603 203, India.,Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh 201 301, India
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4
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Bahadorikhalili S, Divar M, Damghani T, Moeini F, Ghassamipour S, Iraji A, Miller MA, Larijani B, Mahdavi M. N-sulfonyl ketenimine as a versatile intermediate for the synthesis of heteroatom containing compounds. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121773] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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5
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An Q, Liu L, Tang Z, Luo H, Li Y, Xu M, Li B. Access to thiazoles via [3 + 2] cycloaddition of 1,2,3-thiadiazoles with isonitriles. Org Chem Front 2021. [DOI: 10.1039/d1qo00165e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The formal [3 + 2] cycloaddition of 1,2,3-thiadiazoles with isonitriles is developed to access structurally diverse 4,5-disubstituted thiazoles, in which the thioketene as a sulfo-2C-synthon is first disclosed.
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Affiliation(s)
- Qiaoyu An
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Lei Liu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Zongyuan Tang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Han Luo
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - You Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Mingchuan Xu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
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6
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Wu JY, Liao WJ, Lin XY, Liang CF. A facile access to N-sulfonylthioimidates and their use for the transformation to 3,4-dihydroquinazolines. Org Biomol Chem 2020; 18:8881-8885. [PMID: 33107883 DOI: 10.1039/d0ob01963a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
N-Sulfonylthioimidates can be efficiently synthesized through one-pot three-component coupling of terminal alkynes, sulfonyl azides, and thiols by using a copper(i) catalyst in the presence of 4-dimethylaminopyridine. The proposed reaction is characterized by mild reaction conditions and tolerance of diverse functional groups. Additionally, the crucial pharmacophore of 3,4-dihydroquinazolines was synthesized using a one-pot synthetic strategy from N-sulfonylthioimidates.
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Affiliation(s)
- Jia-Yu Wu
- Department of Chemistry, National Chung Hsing University, Taichung, 402, Taiwan.
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7
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Zhang R, Zhang Z, Wang K, Wang J. Difluoroketenimine: Generation from Difluorocarbene and Isocyanide and Its [3 + 2] Cycloadditions with Alkenes or Alkynes. J Org Chem 2020; 85:9791-9800. [PMID: 32633508 DOI: 10.1021/acs.joc.0c01120] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ketenimines have been explored as useful building blocks for the synthesis of heteroatom-containing cyclic compounds through the cycloaddition with polar multiple bonds. Herein, we report the cycloaddition of difluoroketenimine with nonpolar multiple bonds, namely, the cycloaddition with alkenes or alkynes. The difluoroketenimine is generated from the coupling of tert-butyl isocyanide and difluorocarbene, which is formed in situ from (bromodifluoromethyl)trimethylsilane. The difluoroketenimine then reacts in situ with alkenes or alkynes to afford fluorinated pyrrolidines or pyrroles. DFT study suggests that a fluorinated cyclic (alkyl)(amino)carbene is involved as the key intermediate in these reactions.
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Affiliation(s)
- Rui Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Zhikun Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Kang Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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8
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Design, synthesis and biological evaluation of novel N-sulfonylamidine-based derivatives as c-Met inhibitors via Cu-catalyzed three-component reaction. Eur J Med Chem 2020; 200:112470. [PMID: 32505087 DOI: 10.1016/j.ejmech.2020.112470] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 05/09/2020] [Accepted: 05/13/2020] [Indexed: 12/28/2022]
Abstract
In our continuing efforts to develop novel c-Met inhibitors as potential anticancer candidates, a series of new N-sulfonylamidine derivatives were designed, synthesized via Cu-catalyzed multicomponent reaction (MCR) as the key step, and evaluated for their in vitro biological activities against c-Met kinase and four cancer cell lines (A549, HT-29, MKN-45 and MDA-MB-231). Most of the target compounds showed moderate to significant potency at both the enzyme-based and cell-based assay and possessed selectivity for A549 and HT-29 cancer cell lines. The preliminary SAR studies demonstrated that compound 26af (c-Met IC50 = 2.89 nM) was the most promising compound compared with the positive foretinib, which exhibited the remarkable antiproliferative activities, with IC50 values ranging from 0.28 to 0.72 μM. Mechanistic studies of 26af showed the anticancer activity was closely related to the blocking phosphorylation of c-Met, leading to cell cycle arresting at G2/M phase and apoptosis of A549 cells by a concentration-dependent manner. The promising compound 26af was further identified as a relatively selective inhibitor of c-Met kinase, which also possessed an acceptable safety profile and favorable pharmacokinetic properties in BALB/c mouse. The favorable drug-likeness of 26af suggested that N-sulfonylamidines may be used as a promising scaffold for antitumor drug development. Additionally, the docking study and molecular dynamics simulations of 26af revealed a common mode of interaction with the binding site of c-Met. These positive results indicated that compound 26af is a potential anti-cancer candidate for clinical trials, and deserves further development as a selective c-Met inhibitor.
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9
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Neto JSS, Zeni G. Transition Metal‐Catalyzed and Metal‐Free Cyclization Reactions of Alkynes with Nitrogen‐Containing Substrates: Synthesis of Pyrrole Derivatives. ChemCatChem 2020. [DOI: 10.1002/cctc.201902325] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jose S. S. Neto
- Departamento de QuímicaUniversidade Federal de Santa Catarina Florianópolis Santa Catarina 88040-900 Brazil
| | - Gilson Zeni
- Department of Biochemistry and Molecular Biology Laboratório de Síntese Reatividade Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNEUniversidade Federal de Santa Maria Santa Maria Rio Grande do Sul 97105-900 Brazil
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10
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Wang CG, Wu R, Li TP, Jia T, Li Y, Fang D, Chen X, Gao Y, Ni HL, Hu P, Wang BQ, Cao P. Copper(I)-Catalyzed Ketenimine Formation/Aza-Claisen Rearrangement Cascade for Stereoselective Synthesis of α-Allylic Amidines. Org Lett 2020; 22:3234-3238. [PMID: 32233500 DOI: 10.1021/acs.orglett.0c01012] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A copper-catalyzed three-component reaction of terminal alkynes, TsN3, and tertiary allylic amines is developed toward the one-pot synthesis of α-allylic amidines. The product was synthesized on gram scale under 1 mol % of catalyst loading. Transformations of products into alkenyl amine and other nitrogen-containing compounds are demonstrated without any loss of stereochemical information.
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Affiliation(s)
- Cheng-Gang Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Rui Wu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Ting-Peng Li
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Tao Jia
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Yang Li
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Dongmei Fang
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiaozhen Chen
- Natural Products Research Center, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Yuanji Gao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Hai-Liang Ni
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
| | - Peng Cao
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, China
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11
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Xu T, Chen K, Zhu HY, Hao WJ, Tu SJ, Jiang B. Yb(OTf)3-Catalyzed Alkyne–Carbonyl Metathesis–Oxa-Michael Addition Relay for Diastereoselective Synthesis of Functionalized Naphtho[2,1-b]furans. Org Lett 2020; 22:2414-2418. [DOI: 10.1021/acs.orglett.0c00613] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ting Xu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Ke Chen
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Hong-Yu Zhu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P.R. China
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12
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Luo H, Tang Z, Wang T, Tian Y, Zhang Y, Li Y, Li S, Gong Y, Li B. Regioselective N1- and N2-heterocycloalkylation of N1-sulfonyl-1,2,3-triazoles. Org Chem Front 2020. [DOI: 10.1039/d0qo01111h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A tuneable and visible-light-driven three-component reaction between N1-sulfonyl-1,2,3-triazoles, saturated heterocycles, and N-bromosuccinimide for regioselective synthesis of N1- or N2-heterocycloalkylated 1,2,3-triazoles.
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Affiliation(s)
- Han Luo
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Zongyuan Tang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Tao Wang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Yi Tian
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Yuan Zhang
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - You Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Shanshan Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Yiliang Gong
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing
- P. R. China
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13
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Ao C, Yang X, Jia S, Xu X, Yuan Y, Zhang D, Hu W. Zinc-Catalyzed Alkyne-Carbonyl Metathesis of Ynamides with Isatins: Stereoselective Access to Fully Substituted Alkenes. J Org Chem 2019; 84:15331-15342. [PMID: 31702914 DOI: 10.1021/acs.joc.9b02350] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A zinc-catalyzed intermolecular alkyne-carbonyl metathesis reaction of ynamides with isatins followed by an amide to ester conversion has been developed, which produces the indolone derivatives with a fully substituted alkene species in good to high yields. The salient features of this reaction include the following: mild reaction conditions, an inexpensive zinc catalyst, a broad substrate scope, the excellent regiocontrol and stereoselectivity, and amenable to the gram scale.
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Affiliation(s)
- Chaoqun Ao
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Xiaohan Yang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Shikun Jia
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Xinfang Xu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Yanqiu Yuan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Dan Zhang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
| | - Wenhao Hu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences , Sun Yat-sen University , Guangzhou 510006 , China
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14
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Son J, Han GU, Ko GH, Maeng C, Shin S, Lee PH. Copper(I)‐catalyzed Cyclization Reactions of Ethyl (
E
)‐α‐Ethynyl‐β‐Aryl‐α,β‐Unsaturated Esters with
N
‐Sulfonyl Azides: Synthesis of 1‐Aminonaphthalene, 3‐Aminobenzofuran, and 3‐Aminothiobenzofuran Derivatives. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11755] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jeong‐Yu Son
- Department of ChemistryKangwon National University Chuncheon 24341 Republic of Korea
| | - Gi Uk Han
- Department of ChemistryKangwon National University Chuncheon 24341 Republic of Korea
| | - Gi Hoon Ko
- Department of ChemistryKangwon National University Chuncheon 24341 Republic of Korea
| | - Chanyoung Maeng
- Department of ChemistryKangwon National University Chuncheon 24341 Republic of Korea
| | - Seohyun Shin
- Department of ChemistryKangwon National University Chuncheon 24341 Republic of Korea
| | - Phil Ho Lee
- Department of ChemistryKangwon National University Chuncheon 24341 Republic of Korea
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15
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Cherian RM, Harry NA, Saranya S, Rohit KR, Anilkumar G. Copper-Catalysed Multicomponent Syntheses of Heterocycles. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201800619] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Reeba Mary Cherian
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
| | - Nissy Ann Harry
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
| | - Salim Saranya
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
| | - K. R. Rohit
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
| | - Gopinathan Anilkumar
- School of Chemical Sciences; Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
- Advanced Molecular Materials Research Centre (AMMRC); Mahatma Gandhi University; Priyadarsini Hills P O Kottayam, Kerala INDIA 686560
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16
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Yang W, Huang D, Zeng X, Zhang J, Wang X, Hu Y. N-Sulfonyl acetylketenimine as a highly reactive intermediate for synthesis of N-Aroylsulfonamides. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.12.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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17
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Guo S, Dong P, Chen Y, Feng X, Liu X. Chiral Guanidine/Copper Catalyzed Asymmetric Azide‐Alkyne Cycloaddition/[2+2] Cascade Reaction. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810679] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Songsong Guo
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Pei Dong
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Yushuang Chen
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
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18
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Guo S, Dong P, Chen Y, Feng X, Liu X. Chiral Guanidine/Copper Catalyzed Asymmetric Azide‐Alkyne Cycloaddition/[2+2] Cascade Reaction. Angew Chem Int Ed Engl 2018; 57:16852-16856. [DOI: 10.1002/anie.201810679] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Revised: 10/21/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Songsong Guo
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Pei Dong
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Yushuang Chen
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
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19
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Chen Z, Han C, Fan C, Liu G, Pu S. Copper-Catalyzed Diversity-Oriented Synthesis (DOS) of 4-Amino-2 H-chromen-2-imines: Application of Kemp Elimination toward O-Heterocycles. ACS OMEGA 2018; 3:8160-8168. [PMID: 31458953 PMCID: PMC6644361 DOI: 10.1021/acsomega.8b01179] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/05/2018] [Indexed: 06/10/2023]
Abstract
We report herein a copper-catalyzed sequential multicomponent reaction of benzo[d]isoxazoles with terminal alkynes and sulfonyl azides, which produced divergent 4-amino-2H-chromen-2-imines with excellent chemical selectivity. The reaction tolerated a broad range of functional groups, and released only N2 as the sole byproduct. The sulfonyl imino group could be removed to give biologically active free 4-amino-2H-chromenone in good yield.
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Affiliation(s)
- Zhiyuan Chen
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
- Key
Laboratory of Functional Small Organic Molecules, Ministry of Education,
and College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P. R. China
| | - Cuifen Han
- Key
Laboratory of Functional Small Organic Molecules, Ministry of Education,
and College of Chemistry & Chemical Engineering, Jiangxi Normal University, 99 Ziyang Road, Nanchang, Jiangxi 330022, P. R. China
| | - Congbin Fan
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
| | - Gang Liu
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
| | - Shouzhi Pu
- Jiangxi
Key Laboratory of Organic Chemistry, Jiangxi
Science and Technology Normal University, 605 Fenglin Road, Nanchang, Jiangxi 330013, P. R. China
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20
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Kumar R, Thorat SH, Reddy MS. Cu-Catalyzed iminative hydroolefination of unactivated alkynes en route to 4-imino-tetrahydropyridines and 4-aminopyridines. Chem Commun (Camb) 2018; 52:13475-13478. [PMID: 27790654 DOI: 10.1039/c6cc08081b] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A general method for synthesizing 4-imino tetrahydropyridine derivatives is achieved, from readily available β-enaminones and sulfonyl azides, which comprises a sequential copper catalyzed ketenimine formation and its hitherto inaccessible intramolecular hydrovinylation. The products are shown as ready precursors for highly valuable 4-sulfonamidopyridine derivatives via DDQ mediated oxidation.
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Affiliation(s)
- Ravi Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Shridhar H Thorat
- Centre for Materials Characterization, CSIR-NCL, Dr Homi Bhabha Road, Pune-411008, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India. and Academy of Scientific and Innovative Research, New Delhi 110001, India
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21
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Sun J, Cheng X, Mansaray JK, Fei W, Wan J, Yao W. A copper-catalyzed three component reaction of aryl acetylene, sulfonyl azide and enaminone to form iminolactone via 6π electrocyclization. Chem Commun (Camb) 2018; 54:13953-13956. [DOI: 10.1039/c8cc06868b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We developed a copper-catalyzed three component reaction of aryl acetylene, enaminone and sulfonyl azide to construct iminolactone via copper-catalyzed alkyne–azide cycloaddition (CuAAC), Michael addition of metalated ketenimine followed by elimination and 6π electrocyclization.
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Affiliation(s)
- Jiarui Sun
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- P. R. China
| | - Xiangsheng Cheng
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- P. R. China
| | | | - Weihong Fei
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- P. R. China
| | - Jieping Wan
- College of Chemistry and Chemical Engineering
- Jiangxi Normal University
- Nanchang 330022
- P. R. China
| | - Weijun Yao
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou
- P. R. China
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22
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Huang Y, Yi W, Sun Q, Zhang L, Yi F. A new and facile approach to 1,2-dihydroisoquinolin-3(4H)-imines by the Cu(i)-catalyzed reaction of 2-ethynylbenzyl methanesulfonates, sulfonyl azides and amines. RSC Adv 2018. [DOI: 10.1039/c7ra12412k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
A new, step-economical and operationally simple access to unsubstituted 1,2-dihydroisoquinolin-3(4H)-imines by Cu-catalyzed MCRs under mild conditions is described.
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Affiliation(s)
- Ying Huang
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Weiyin Yi
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Qihui Sun
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Lirong Zhang
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
| | - Fengping Yi
- School of Perfume and Aroma Technology
- Shanghai Institute of Technology
- Shanghai 201418
- P. R. China
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23
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Kumar BS, Pitchumani K. Chemistry in Confinement: Copper and Palladium Catalyzed Ecofriendly Organic Transformations within Porous Frameworks. CHEM REC 2017; 18:506-526. [DOI: 10.1002/tcr.201700056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 11/14/2017] [Indexed: 12/24/2022]
Affiliation(s)
- Basuvaraj Suresh Kumar
- Department of Natural Products Chemistry, School of Chemistry; Madurai Kamaraj University; Madurai 625021, Tamil Nadu India
| | - Kasi Pitchumani
- Department of Natural Products Chemistry, School of Chemistry; Madurai Kamaraj University; Madurai 625021, Tamil Nadu India
- Centre for Green Chemistry Processes, School of Chemistry; Madurai Kamaraj University; Madurai 625021, Tamil Nadu India
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24
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Ding ZC, An XM, Zeng JH, Tang ZN, Zhan ZP. Copper(I)-Catalyzed Synthesis of 4,5-Dihydropyrazolo[1,5- a
]pyrimidines via
Cascade Transformation of N
-Propargylic Sulfonylhydrazones with Sulfonyl Azides. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700635] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Zong-Cang Ding
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Xiao-Ming An
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Jia-Hao Zeng
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Zhao-Ning Tang
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
| | - Zhuang-Ping Zhan
- Department of Chemistry, College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 People's Republic of China
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25
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Nallagangula M, Namitharan K. Copper-Catalyzed Sulfonyl Azide-Alkyne Cycloaddition Reactions: Simultaneous Generation and Trapping of Copper-Triazoles and -Ketenimines for the Synthesis of Triazolopyrimidines. Org Lett 2017; 19:3536-3539. [PMID: 28609631 DOI: 10.1021/acs.orglett.7b01500] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
First simultaneous generation and utilization of both copper-triazole and -ketenimine intermediates in copper-catalyzed sulfonyl azide-alkyne cycloaddition reactions is achieved for the one-pot synthesis of triazolopyrimidines via a novel copper-catalyzed multicomponent cascade of sulfonyl azides, alkynes, and azirines. Significantly, the reaction proceeds under very mild conditions in good yields.
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Affiliation(s)
- Madhu Nallagangula
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University , Chennai-603203, India
| | - Kayambu Namitharan
- Organic Synthesis and Catalysis Laboratory, SRM Research Institute, SRM University , Chennai-603203, India
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26
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Liu TL, Li QH, Wei L, Xiong Y, Wang CJ. Copper(I)-Catalyzed One-Pot Sequential [3+2]/[8+2] Annulations for the (Z)-Selective Construction of Heterocyclic Diazabicyclo[5.3.0]decatrienes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700044] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tang-Lin Liu
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 People's Republic of China
| | - Qing-Hua Li
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 People's Republic of China
- School of Life Science; Wuchang University of Technology, Wuhan; 430223 Hubei People's Republic of China
| | - Liang Wei
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 People's Republic of China
| | - Yong Xiong
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 People's Republic of China
| | - Chun-Jiang Wang
- College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 People's Republic of China
- State Key Laboratory of Elemento-organic Chemistry; Nankai University; Tianjin 300071 People's Republic of China
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27
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An Efficient One-Pot Protocol for the Synthesis of Polysubstituted 4-Amino-iminocoumarins and 4-Aminoquinolines by a Copper-Catalyzed Three-Component Reaction. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601217] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Cheng D, Ling F, Zheng C, Ma C. Tuning of Copper-Catalyzed Multicomponent Reactions toward 3-Functionalized Oxindoles. Org Lett 2016; 18:2435-8. [DOI: 10.1021/acs.orglett.6b00964] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dong Cheng
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
- School
of Chemistry and Materials Engineering, Chaohu University, Chaohu 238000, China
| | - Fei Ling
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Chenguang Zheng
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department
of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
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29
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Ling F, Wan Y, Wang D, Ma C. Coupling and Decoupling Approach Enables Palladium-Catalyzed Aerobic Bimolecular Carbocyclizations of Enediynes to 2,6-Diacylnaphthalenes. J Org Chem 2016; 81:2770-81. [DOI: 10.1021/acs.joc.5b02870] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Fei Ling
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Yanjun Wan
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Dongxu Wang
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
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30
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Wu J, Wang D, Wan Y, Ma C. Rhodium-catalyzed tunable oxidative cyclization toward the selective synthesis of α-pyrones and furans. Chem Commun (Camb) 2016; 52:1661-4. [DOI: 10.1039/c5cc09137c] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The RhIII-catalyzed tunable oxidative cyclization of readily availableN-tosylacrylamides and diazo compounds toward the selective synthesis of fully substituted furans and α-pyrones is presented.
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Affiliation(s)
- Jiaping Wu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Dongxu Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Yanjun Wan
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
| | - Cheng Ma
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- China
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31
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Ramanathan D, Namitharan K, Pitchumani K. Copper(i)–Y zeolite catalyzed N-sulfonylketenimine mediated annulation of hydroxynaphthoquinones: syntheses of naphtho[2,1-b]furan-2,5-diones and benzo[de]chromene-2,6-diones. Chem Commun (Camb) 2016; 52:8436-9. [DOI: 10.1039/c6cc03571j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An efficient, one pot synthesis of novel naphtho[2,1-b]furan-2,5-diones and benzo[de]chromene-2,6-diones was reported using copper(i)–Y zeolite as catalyst.
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Affiliation(s)
| | | | - Kasi Pitchumani
- School of Chemistry
- Madurai Kamaraj University
- Madurai – 625 021
- India
- Centre for Green Chemistry Processes
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32
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Hu Y, Zhou B, Wang C. Copper-catalyzed three-component cascade reaction of alkynes, sulfonyl azides and simple aldehydes/ketones. Org Biomol Chem 2016; 14:3022-6. [DOI: 10.1039/c6ob00146g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A copper-catalyzed dimethylzinc-promoted three-component cascade reaction of alkynes, sulfonyl azides, and simple aldehydes or ketones is described, which delivers polysubstituted olefins expeditiously in one pot under mild conditions.
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Affiliation(s)
- Yuanyuan Hu
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Bingwei Zhou
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Congyang Wang
- Beijing National Laboratory for Molecular Sciences
- CAS Key Laboratory of Molecular Recognition and Function
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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33
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Wang D, Ling F, Liu X, Li Z, Ma C. Aerobic Dimerization of Enediyne Compounds: Construction of Naphthalene Frameworks. Chemistry 2015; 22:124-8. [DOI: 10.1002/chem.201504085] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Indexed: 12/12/2022]
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34
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Ramanathan D, Pitchumani K. Copper(I)-Y Zeolite-Catalyzed Regio- and Stereoselective [2 + 2 + 2] Cyclotrimerization Cascade: An Atom- and Step-Economical Synthesis of Pyrimido[1,6-a]quinoline. J Org Chem 2015; 80:10299-308. [PMID: 26390020 DOI: 10.1021/acs.joc.5b01896] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An elegant copper(I)-Y zeolite-catalyzed tandem process, involving ketenimine-based termolecular [2 + 2 + 2]/[NC + CC + NC] cycloaddition, using sulfonyl azide, alkyne, and quinoline, to prepare pyrimido[1,6-a]quinolines is reported. In this straightforward, highly atom- and step-economical protocol, copper(I) promotes for azide-alkyne [3 + 2] cycloaddition which is followed by ring-rearrangement/ketenimine formation/regio- and stereoselective [2 + 2 + 2] termolecular cycloaddition and dehydrogenation cascade to yield selectively the E-isomer of pyrimido[1,6-a]quinoline.
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Affiliation(s)
- Devenderan Ramanathan
- School of Chemistry and ‡Centre for Green Chemistry Processes, School of Chemistry, Madurai Kamaraj University , Madurai 625 021, India
| | - Kasi Pitchumani
- School of Chemistry and ‡Centre for Green Chemistry Processes, School of Chemistry, Madurai Kamaraj University , Madurai 625 021, India
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35
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Yan X, Ling F, Zhang Y, Ma C. Three-Component Functionalized Dihydropyridine Synthesis via a Formal Inverse Electron-Demand Hetero-Diels–Alder Reaction. Org Lett 2015; 17:3536-9. [DOI: 10.1021/acs.orglett.5b01622] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaonan Yan
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Fei Ling
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Yuchen Zhang
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
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36
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Murugavel G, Punniyamurthy T. Microwave-Assisted Copper-Catalyzed Four-Component Tandem Synthesis of 3-N-Sulfonylamidine Coumarins. J Org Chem 2015; 80:6291-9. [DOI: 10.1021/acs.joc.5b00738] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Govindarasu Murugavel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
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37
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Yavari I, Sheikhi A, Nematpour M, Taheri Z. Synthesis of Functionalized N-Sulfonylamidines from N-Sulfonylketenimines and 2-Aminobenzimidazole. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2014.974613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Issa Yavari
- Department of Chemistry, Tarbiat Modares University, Tehran, Iran
| | - Azam Sheikhi
- Department of Chemistry, Tarbiat Modares University, Tehran, Iran
| | | | - Zohreh Taheri
- Department of Chemistry, Tarbiat Modares University, Tehran, Iran
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38
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Mahendran V, Shanmugam S. One-pot synthesis of hydrazono-sulfonamide adducts using Cu(BTC) MOF catalyst and their remarkable AIEE properties: unprecedented copper(ii)-catalyzed generation of ketenimine. RSC Adv 2015. [DOI: 10.1039/c5ra00147a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
One pot & simple operation; short reaction time; no column purification; very less catalyst loading; scalable.
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Affiliation(s)
| | - Sivakumar Shanmugam
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625021
- India
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39
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Wang J, Lu P, Wang Y. Copper-catalyzed multi-component synthesis of acrylamidines and benzoimidazoles. Org Chem Front 2015. [DOI: 10.1039/c5qo00196j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Acrylamidines were synthesized via the copper-catalyzed three-component reaction of propargyl acetates, sulfonyl azides and amines, which are readily accessible materials.
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Affiliation(s)
- Jinjin Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Ping Lu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
| | - Yanguang Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- P. R. China
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40
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Ramanathan D, Pitchumani K. Copper(I)-Catalyzed One-Pot Synthesis of Highly Functionalized Pyrrolidines from Sulfonyl Azides, Alkynes, and Dimethyl 2-(Phenylamino)maleate. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403285] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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41
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Ling F, Li Z, Zheng C, Liu X, Ma C. Palladium/Copper-Catalyzed Aerobic Intermolecular Cyclization of Enediyne Compounds and Alkynes: Interrupting Cycloaromatization for (4 + 2) Cross-Benzannulation. J Am Chem Soc 2014; 136:10914-7. [DOI: 10.1021/ja506795u] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fei Ling
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Zexiang Li
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Chenguang Zheng
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Xiang Liu
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
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42
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Rotstein BH, Zaretsky S, Rai V, Yudin AK. Small Heterocycles in Multicomponent Reactions. Chem Rev 2014; 114:8323-59. [DOI: 10.1021/cr400615v] [Citation(s) in RCA: 664] [Impact Index Per Article: 66.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Benjamin H. Rotstein
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario Canada, M5S 3H6
- Division
of Nuclear Medicine and Molecular Imaging, Massachusetts General Hospital,
and Department of Radiology, Harvard Medical School, 55 Fruit Street, Boston, Massachusetts 02114, United States
| | - Serge Zaretsky
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario Canada, M5S 3H6
| | - Vishal Rai
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario Canada, M5S 3H6
- Department
of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Indore By-pass Road, Bhauri, Bhopal 462 066, MP India
| | - Andrei K. Yudin
- Davenport
Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario Canada, M5S 3H6
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43
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A tandem synthesis of 5-sulfonylimino-2-imidazolones from sulfonoketenimides and dialkyl azodicarboxylates. Mol Divers 2014; 18:721-5. [PMID: 24924801 DOI: 10.1007/s11030-014-9529-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2013] [Accepted: 05/09/2014] [Indexed: 10/25/2022]
Abstract
Functionalized 5-sulfonylimino-2-imidazolones are prepared by a copper-catalyzed reaction of dialkyl azodicarboxylates with sulfonoketenimides, generated from terminal alkynes and sulfonyl azides, in good to excellent yields.
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44
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Kumar GR, Kumar YK, Kant R, Reddy MS. Tandem Cu-catalyzed ketenimine formation and intramolecular nucleophile capture: Synthesis of 1,2-dihydro-2-iminoquinolines from 1-(o-acetamidophenyl)propargyl alcohols. Beilstein J Org Chem 2014; 10:1255-1260. [PMID: 24991276 PMCID: PMC4077525 DOI: 10.3762/bjoc.10.125] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 04/30/2014] [Indexed: 12/18/2022] Open
Abstract
The copper-catalyzed ketenimine formation reaction of 1-(o-acetamidophenyl)propargyl alcohols with various sulfonyl azides is found to undergo a concomitant intramolecular nucleophile attack to generate 1,2-dihydro-2-iminoquinolines after aromatization (via elimination of acetyl and hydroxy groups) and tautomerization. The reaction produces 4-substituted and 3,4-unsubstituted title compounds in moderate to good yields under mild reaction conditions.
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Affiliation(s)
- Gadi Ranjith Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Yalla Kiran Kumar
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Ruchir Kant
- Molecular & Structural Biology Division, CSIR-Central Drug Research Institute,BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
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45
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Li Z, Ling F, Cheng D, Ma C. Pd-Catalyzed Branching Cyclizations of Enediyne-Imides toward Furo[2,3-b]pyridines. Org Lett 2014; 16:1822-5. [DOI: 10.1021/ol500574b] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zexiang Li
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, P. R. China
| | - Fei Ling
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, P. R. China
| | - Dong Cheng
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, P. R. China
| | - Cheng Ma
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, P. R. China
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46
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Yao B, Shen C, Liang Z, Zhang Y. Copper-Catalyzed Reaction of Ketenimine and in Situ Generated Immonium Ion: Access to α,β-Unsaturated Amidines. J Org Chem 2014; 79:936-42. [DOI: 10.1021/jo402368x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Bangben Yao
- China National Center for Quality Supervision, Test of Agricultural-Avocation Processed Food, Hefei 230051, People’s Republic of China
| | - Chuang Shen
- ZJU-NHU United R&D Center, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Zunjun Liang
- ZJU-NHU United R&D Center, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
| | - Yuhong Zhang
- ZJU-NHU United R&D Center, Department of Chemistry, Zhejiang University, Hangzhou 310027, People’s Republic of China
- State Key
Laboratory
of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, People’s Republic of China
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47
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Kiran Kumar Y, Ranjith Kumar G, Sridhar Reddy M. Cu-Catalyzed Conversion of Propargyl Acetates to E-α,β-Unsaturated Amides via Ketenimine Formation with Sulfonyl Azides. J Org Chem 2013; 79:823-8. [DOI: 10.1021/jo402570t] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yalla Kiran Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Gadi Ranjith Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
| | - Maddi Sridhar Reddy
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram Extension, Sitapur Road, P.O. Box 173, Lucknow 226031, India
- Academy
of Scientific and Innovative Research, New Delhi 110001, India
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48
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Shang Y, Liao K, He X, Hu J. One-pot synthesis of disulfide-linked N-sulfonylazetidin-2-imines via a copper-catalyzed multicomponent cascade reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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49
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Zhou F, Liu X, Zhang N, Liang Y, Zhang R, Xin X, Dong D. Copper-catalyzed three-component reaction: solvent-controlled regioselective synthesis of 4-amino- and 6-amino-2-iminopyridines. Org Lett 2013; 15:5786-9. [PMID: 24171428 DOI: 10.1021/ol4028368] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Regioselective synthesis of multisubstituted 4-amino- and 6-amino-2-iminopyridines has been developed via the copper-catalyzed three-component reaction based on the reaction conditions selection. The reaction of sulfonyl azides, alkynes, and 2-[(amino)methylene]malononitriles catalyzed by copper(I) iodide in tetrahydrofuran at room temperature afforded substituted 4-amino-2-iminopyridines, whereas, in N,N-dimethylformamide at 50 °C under N2, it generated substituted 6-amino-2-iminopyridines as predominant products.
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Affiliation(s)
- Fenguo Zhou
- Changchun Institute of Applied Chemistry, Chinese Academy of Sciences , Changchun 130022, China, and School of Chemistry and Environmental Engineering, Changchun University of Science and Technology , Changchun 130022, China
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50
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Yavari I, Nematpour M, Bayat MJ. A tandem synthesis of functionalized azet-2 $$(1H)$$ ( 1 H ) -ones and azet-2 $$(1H)$$ ( 1 H ) -thiones. Mol Divers 2013; 17:809-15. [DOI: 10.1007/s11030-013-9479-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2013] [Accepted: 09/01/2013] [Indexed: 11/21/2022]
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