1
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Li J, Dong K, Deng X, Li RP, Liu J, Wang X, Tang S. C-H Alkenylation of Indoles through a Dual 1,3-Sulfur Migration Process. Org Lett 2022; 24:7742-7746. [PMID: 36255292 DOI: 10.1021/acs.orglett.2c03052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Methods for the modification of indole derivatives are powerful techniques in organic, medicinal, and biomolecular chemistry. Here, we report a protocol for the C-H alkenylation of N-H indoles with β-chlorovinyl dithianes to furnish alkenyl indoles through dual 1,3-sulfur rearrangements. This alkenylation protocol could selectively prepare a variety of vinyl indoles in moderate to high yields with excellent functional group tolerance.
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Affiliation(s)
- Jia Li
- School of Pharmacy, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Kang Dong
- School of Pharmacy, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xuemei Deng
- School of Pharmacy, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Rui-Peng Li
- School of Pharmacy, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Jian Liu
- School of Pharmacy, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xiaolei Wang
- School of Pharmacy, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Shouchu Tang
- School of Pharmacy, and State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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2
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Wang N, Li Z, Hou Q, Han F, Yan Y, Zhang J, Miao C. Metal-Free, Adjustable, and Recyclable Catalytic Systems for the Construction of C-C Bonds by Activating Propargylic Alcohols. J Org Chem 2022; 87:11669-11680. [PMID: 35998335 DOI: 10.1021/acs.joc.2c01305] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pyrano[3,2-c]coumarin derivatives and C3-substituted 4-hydroxycoumarins as important skeletal structures of active natural products and pharmaceutically relevant molecules have received increasing attention. However, developing an adjustable system for selectively synthesizing them is still a challenging task. Herein, sulfonic acid-functionalized ionic liquid was successfully used as the catalyst for the alkylation of 4-hydroxycoumarin derivatives with secondary aromatic propargylic alcohols using dimethyl carbonate as the green solvent, giving up to 98% yield. On the other hand, protonated imidazole-based ionic liquid-catalyzed cyclization was also selectively achieved with a nearly quantitative yield. Developed metal-free catalytic systems exhibited well adjustable and recyclable properties, avoiding the contamination of metal and halogen, reducing the neutralization after the reaction, and benefiting the separation between the catalyst and the product. New strategies were applied for performing the gram-scale reaction smoothly. The adjustable systems might occur through two different mechanisms involving propargylic or allenic carbocation and hydrogen bonding effects between the catalysts and the substrates.
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Affiliation(s)
- Ning Wang
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University, Daizong Road No. 61, Tai'an 271018, China
| | - Zengmin Li
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University, Daizong Road No. 61, Tai'an 271018, China
| | - Qin Hou
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University, Daizong Road No. 61, Tai'an 271018, China
| | - Feng Han
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University, Daizong Road No. 61, Tai'an 271018, China
| | - Yucai Yan
- State Key Laboratory of Fluorinated Functional Membrane Materials, Shandong Dongyue Polymer Materials Co, Ltd., Zibo, Shandong 256401, China.,Shandong Dongyue Polymer Materials Co, Ltd., Zibo, Shandong 256401, China
| | - Jian Zhang
- State Key Laboratory of Fluorinated Functional Membrane Materials, Shandong Dongyue Polymer Materials Co, Ltd., Zibo, Shandong 256401, China.,Shandong Dongyue Polymer Materials Co, Ltd., Zibo, Shandong 256401, China
| | - Chengxia Miao
- Key Laboratory of Agricultural Film Application of Ministry of Agriculture and Rural Affairs, College of Chemistry and Material Science, Shandong Agricultural University, Daizong Road No. 61, Tai'an 271018, China
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3
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Fang Z, Ma Y, Dong J. Boron trifluoride diethyl etherate catalyzed cyclotrimerization of enaminones for the synthesis of 1,3,5-Trisubstituted benzenes. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Ni D, Song L, Zhao Y, Liu S. One-pot synthesis of multi-substituted conjugated dienones by trapping allene carbocations with active ylides. Chem Commun (Camb) 2022; 58:2698-2701. [PMID: 35108717 DOI: 10.1039/d1cc06405c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Rh(II)/boron reagent co-catalyzed unprecedent transformation was established for the rapid construction of multi-substituted conjugated dienones under mild conditions by trapping allene carbocations with oxonium ylides from simple starting points in yields up to 85%. Two CC double bonds, one C-C and one C-O single bond were built in this one-pot reaction. The diversity-oriented strategy was also established to synthesize alkyne ether and dihydrofuran derivatives by a substrate-depended fashion.
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Affiliation(s)
- Dan Ni
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
| | - Longlong Song
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
| | - Yun Zhao
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China.
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5
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Liu Z, Sun S, Lou J. PhIO-Mediated Oxidative C═C Bond Cleavage and Reassembly toward Highly Functionalized Oxazolones. Org Lett 2022; 24:1323-1328. [PMID: 35129353 DOI: 10.1021/acs.orglett.1c04326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
An efficient PhIO-mediated oxidative C═C bond cleavage and reassembly of enaminone toward oxazolone with high regioselectivity has been reported. DFT calculations revealed that the reaction proceeded through an oxygen atom transfer, C═C bond cleavage, alkylthio migration, and reassembly cascade. This strategy is highlighted by high atom and step economy with formation of five bonds in one pot and generation of a high-valued oxazolone skeleton under mild conditions.
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Affiliation(s)
- Zhuqing Liu
- Advanced Research Institute for Multidisciplinary Science, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.,State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Shaobin Sun
- Advanced Research Institute for Multidisciplinary Science, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
| | - Jiang Lou
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China.,State Key Laboratory of Pulp and Paper Science & Technology of Ministry of Education, Qilu University of Technology, Shandong Academy of Sciences, Jinan 250353, China
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6
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Fu Y, Bi H, Lei S, Wang SR. Brønsted acid promoted substrate-dependent regiodivergent alkynylcyclopropane–cyclopentadiene rearrangement assisted by the internal carbonyl group. Org Chem Front 2022. [DOI: 10.1039/d2qo01048h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Facile Brønsted acid promoted alkynylcyclopropane–cyclopentadiene rearrangement, avoiding the five-membered cycloallene intermediate assisted by the internal carbonyl groups, has been developed.
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Affiliation(s)
- Yue Fu
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
| | - Hongyan Bi
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
| | - Siling Lei
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
| | - Sunewang R. Wang
- Chang-Kung Chuang Institute, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 500 Dongchuan Lu, Shanghai 200241, China
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7
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Zhao X, Ling Q, Cao G, Huo X, Zhao X, Su Y. Research Progress in the Cyclization Reactions with Propargyl Alcohols. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202203037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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8
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Song L, Ni D, Han W, Tang J, Yang F, Liu S. FeTPPCl/FeCl 3 Co-Catalyzed One-Pot Green Synthesis of α-Diaryl-β-alkynol Derivatives via Propargylic Carbocation Chemistry. J Org Chem 2021; 86:9306-9316. [PMID: 34228462 DOI: 10.1021/acs.joc.1c00474] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A green and highly efficient one-pot method for α-diaryl-β-alkynol derivatives in water at room temperature was developed using the cocatalysis of a Lewis acid and meso-tetraphenylporphyrin iron(III) chloride (FeTPPCl). The unprecedented transformation was promoted by a modulation of the charge properties of propargylic carbocation chemistry and the use of an in situ-generated oxonium ylide as a matching nucleophile. The reaction was performed in water at room temperature with a highly step-economic manipulation in good to excellent yields and with a broad substrate scope. Water also acts as the third reactant for the one-pot transformation. Notably, the FeTPPCl catalyst can be directly reused four times with a slight discount in yields.
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Affiliation(s)
- Longlong Song
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Dan Ni
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Wangyujing Han
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Jie Tang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Fan Yang
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
| | - Shunying Liu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, School of Chemistry and Chemical Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China
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9
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Shen WB, Tang XT, Zhang TT, Liu SY, He JM, Su TF. Cu(I)-Catalyzed Oxidative Cyclization of Enynamides: Regioselective Access to Cyclopentadiene Frameworks and 2-Aminofurans. Org Lett 2020; 22:6799-6804. [PMID: 32845152 DOI: 10.1021/acs.orglett.0c02317] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient Cu(I)-catalyzed oxidative cyclization of alkynyl-tethered enynamides for the construction of fused bicyclic cyclopentadiene derivatives is disclosed. The cascade proceeds through alkyne oxidation, carbene/alkyne metathesis, and formal (3 + 2) cycloaddition. Employing aryl-tethered enynamides as starting materials, substituted 2-aminofurans can be exclusively formed.
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Affiliation(s)
- Wen-Bo Shen
- College of Sciences, Henan Agricultural University, Zhengzhou, Henan 450002, China
| | - Xiang-Ting Tang
- College of Sciences, Henan Agricultural University, Zhengzhou, Henan 450002, China
| | - Ting-Ting Zhang
- College of Sciences, Henan Agricultural University, Zhengzhou, Henan 450002, China
| | - Si-Yu Liu
- College of Sciences, Henan Agricultural University, Zhengzhou, Henan 450002, China
| | - Jiang-Man He
- College of Sciences, Henan Agricultural University, Zhengzhou, Henan 450002, China
| | - Tong-Fu Su
- College of Sciences, Henan Agricultural University, Zhengzhou, Henan 450002, China
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10
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Xue J, Bai LG, Zhang L, Zhou Y, Lin XL, Mou NJ, Xiao DR, Luo QL. One-Pot Synthesis of 2,4-Diacyl Thiophenes from α-Oxo Ketene Dithioacetals and Propargylic Alcohols. J Org Chem 2020; 85:9761-9775. [DOI: 10.1021/acs.joc.0c01093] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jian Xue
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Li-Gang Bai
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Liang Zhang
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yue Zhou
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Xiao-Long Lin
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Neng-Jie Mou
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Dong-Rong Xiao
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Qun-Li Luo
- College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
- Key Laboratory of Applied Chemistry of Chongqing Municipality, Southwest University, Chongqing 400715, China
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11
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Affiliation(s)
- Hongwei Qian
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Dayun Huang
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
| | - Yicheng Bi
- Qingdao University of Science & TechnologySifang Campus 53 Zhengzhou Road Qingdao Shandong 266042 People's Republic of China
| | - Guobing Yan
- Department of ChemistryLishui University 1 Xueyuan Road Lishui City Zhejiang Province 323000 People's Republic of China
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12
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Huang J, Ho C. [(NHC)Ni
II
H]‐Catalyzed Cross‐Hydroalkenylation of Cyclopropenes with Alkynes: Cyclopentadiene Synthesis by [(NHC)Ni
II
]‐Assisted C−C Rearrangement. Angew Chem Int Ed Engl 2019; 58:5702-5706. [DOI: 10.1002/anie.201901255] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/13/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Jian‐Qiang Huang
- Shenzhen Grubbs InstituteDepartment of ChemistrySouthern University of Science and Technology (SUSTech) China
- Department of Chemistry and Molecular SciencesWuhan University China
| | - Chun‐Yu Ho
- Shenzhen Grubbs InstituteDepartment of ChemistrySouthern University of Science and Technology (SUSTech) China
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13
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Huang J, Ho C. [(NHC)Ni
II
H]‐Catalyzed Cross‐Hydroalkenylation of Cyclopropenes with Alkynes: Cyclopentadiene Synthesis by [(NHC)Ni
II
]‐Assisted C−C Rearrangement. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901255] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jian‐Qiang Huang
- Shenzhen Grubbs InstituteDepartment of ChemistrySouthern University of Science and Technology (SUSTech) China
- Department of Chemistry and Molecular SciencesWuhan University China
| | - Chun‐Yu Ho
- Shenzhen Grubbs InstituteDepartment of ChemistrySouthern University of Science and Technology (SUSTech) China
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14
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Zhang X, Chen H, Ji Y, Jiang K, Chen H. Sulfur Transfer Versus Phenyl Ring Transfer in the Gas Phase: Sequential Loss of CH 3OH and CH 3O-P=O from Protonated Phosphorothioates. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:459-467. [PMID: 30569428 DOI: 10.1007/s13361-018-2098-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 10/22/2018] [Accepted: 10/24/2018] [Indexed: 06/09/2023]
Abstract
Collisional activation fragmentation of protonated phosphorothioates leads to skeletal rearrangement and formation of aryl sulfenylium cation (R-PhS+) via successive eliminations of CH3OH and CH3O-P=O. To better understand this unusual fragmentation reaction, isotope-labeling experiments and density functional theory (DFT) calculations were carried out to investigate two mechanistic pathways. In route 1, a direct intramolecular transfer of the R-phenyl group occurs from the oxygen atom to the sulfur atom on thiophosphoryl to form methoxyl S-(3-methyl-4-methylsulfanyl-phenyl) phosphonium thiolate (a4), which subsequently dissociates to form the m/z 169 cation. In route 2, the sulfur atom of the thiophosphoryl group undergoes two stepwise transfer (1,4-migration to the ortho-carbon atom of the phenyl ring followed by 1,2-migration to the ipso-carbon atom) to form an intermediate isomer, which undergoes the subsequent dissociation to form the m/z 169 cation. DFT calculations suggested that route 2 was more favorable than route 1 from the point view of kinetics. Graphical Abstract.
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Affiliation(s)
- Xiaoping Zhang
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
| | - Honghan Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
| | - Yin Ji
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China
| | - Kezhi Jiang
- Key Laboratory of Organosilicon Chemistry and Material Technology, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Huanwen Chen
- Jiangxi Key Laboratory for Mass Spectrometry and Instrumentation, East China University of Technology, Nanchang, 330013, People's Republic of China.
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15
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Xu C, Wang M, Liu Q. Recent Advances in Metal‐Catalyzed Bond‐Forming Reactions of Ketene
S,S
‐Acetals. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801070] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Cong Xu
- National Engineering Laboratory for Druggable Gene and Protein ScreeningSchool of Life SciencesNortheast Normal University Changchun 130024 People's Republic of China
| | - Mang Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisFaculty of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
| | - Qun Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & SynthesisFaculty of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
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16
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Bai LG, Chen MT, Xiao DR, Zhao LB, Luo QL. Access to Multisubstituted Furan-3-carbothioates via Cascade Annulation of α-Oxo Ketene Dithioacetals with Isoindoline-1,3-dione-Derived Propargyl Alcohols. J Org Chem 2018; 83:7648-7658. [DOI: 10.1021/acs.joc.8b00401] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Huang YC, Nguyen A, Gräßle S, Vanderheiden S, Jung N, Bräse S. Addition of dithi(ol)anylium tetrafluoroborates to α,β-unsaturated ketones. Beilstein J Org Chem 2018; 14:515-522. [PMID: 29623112 PMCID: PMC5852463 DOI: 10.3762/bjoc.14.37] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 02/08/2018] [Indexed: 01/02/2023] Open
Abstract
In the presented study, dithi(ol)anylium tetrafluoroborates are added to α,β-unsaturated ketones in a Michael-type reaction yielding diverse substituted ketene diothi(ol)anes. The reactions proceed at room temperature in 1 or 13 h without the need of further additives. The presented procedure is in particular useful for dithi(ol)anylium tetrafluoroborates without electron-withdrawing groups in α-position. This is advantageous with respect to previous approaches, which were limited to the use of ketene dithioacetals substituted with electron-withdrawing groups. Aiming for the systematic investigation of possible steric and electronic influences on the outcome of the reaction, various combinations of electrophiles and nucleophiles were used and the results of the reactions were compared based on the type of the used dithioacetal. The scope of the presented procedure is shown with four additional transformations including the use of additional electrophiles and nucleophiles, the use of a chiral auxiliary and subsequent reduction of selected products. Additionally, we extended the reaction to the synthesis of diene dithiolanes by addition of an ynone to α-alkyl or aryl-substitued dithiolanylium TFBs.
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Affiliation(s)
- Yu-Chieh Huang
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - An Nguyen
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Simone Gräßle
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sylvia Vanderheiden
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Nicole Jung
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
| | - Stefan Bräse
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Campus North, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany
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18
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Garg P, Singh A. Unmasking Dipole Character of Acyl Ketene Dithioacetals via a Cascade Reaction with Arynes: Synthesis of Benzo[b]thiophenes. Org Lett 2018; 20:1320-1323. [PMID: 29446635 DOI: 10.1021/acs.orglett.8b00053] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
An unusual strategy toward novel substituted benzo[b]thiophenes has been developed. The generation of arynes in the presence of acyl ketene dithioacetals resulted in a cascade reaction involving [3 + 2] cycloaddition, and a dealkylative arylation of a thioether moiety to afford 2,3-disubstuted benzo[b]thiophenes. This route represents an expeditious approach to benzothiophenes that employs acyl ketene dithioacetals as dipoles.
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Affiliation(s)
- Parul Garg
- Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur, UP-208016, India
| | - Anand Singh
- Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur, UP-208016, India
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19
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Roy R, Saha S. Scope and advances in the catalytic propargylic substitution reaction. RSC Adv 2018; 8:31129-31193. [PMID: 35548716 PMCID: PMC9085608 DOI: 10.1039/c8ra04481c] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 08/27/2018] [Indexed: 11/26/2022] Open
Abstract
Nucleophilic displacement of the propargylic alcohol is one of the sought-after methods in the current scenario. The highly nucleophilic alkyne functional moiety along with its considerably acidic terminal hydrogen atom allows the propargylic unit to play a crucial role in organic synthesis by offering a handle for further synthetic transformations. Until 2000, the most fundamental propargylic substitution reaction was the Nicolas reaction, a multi-step transformation, developed in 1972, which involved cobalt as a stoichiometric promoter. Therefore, the direct catalytic substitution of propargylic alcohols was a highly desirable method for development. The pioneering work on the Ru-catalyzed propargylic substitution reaction in 2000 encouraged many researchers to develop several novel catalytic propargylic substitution reactions, which have made rapid progress since then. The purpose of this review is to emphasise the involvement of diverse types of Lewis acid, transition metal and Brønsted acid catalysts in the propargylic substitution reaction and provide an updated summary of the recent developments in this field. The selected examples presented here are the most significant and relevant ones and we believe that this will help the readers to comprehend the scope of the propargylic substitution reaction with diverse types of catalysts and will envisage the scientific community for the future developments in this field. Direct nucleophilic displacement of the alpha-hydroxy of the propargylic alcohol is one of the sought-after methods in the current scenario. An updated summary of the recent developments in this field is presented here.![]()
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Affiliation(s)
| | - Satyajit Saha
- Department of Dyestuff Technology
- ICT Mumbai
- Mumbai
- India
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20
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Sun L, Liu P, Wang J, Lu P, Wang Y. Preparation of Spiro[indene-1,1′-isoindolin]-3′-ones via Sulfuric Acid-Promoted Cascade Cyclization. J Org Chem 2017; 82:8407-8418. [DOI: 10.1021/acs.joc.7b00958] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Lang Sun
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Peng Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jing 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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21
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Huang K, Sheng G, Lu P, Wang Y. BF3-Promoted Divergent Reactions between Tryptophols and Propargylic Alcohols. Org Lett 2017; 19:4114-4117. [DOI: 10.1021/acs.orglett.7b01769] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kai Huang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Guorong Sheng
- 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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22
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Tharra P, Baire B. A coherent study on the Z-enoate assisted Meyer–Schuster rearrangement. Org Biomol Chem 2017. [DOI: 10.1039/c7ob01221g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The impact of temperature, solvent, concentration of the counter ion and the nature of the arene nucleophile on the Z-enoate assisted Meyer–Schuster rearrangement of propargylic alcohols was studied.
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Affiliation(s)
| | - Beeraiah Baire
- Department of Chemistry
- Institute of Technology Madras
- Chennai-600036
- India
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23
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Muthusamy S, Selvaraj K, Suresh E. Iodine mediated propargylic substitution/aza-Meyer–Schuster rearrangement: stereoselective synthesis of conjugated unsymmetrical azines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.09.055] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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24
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Mal K, Naskar S, Sen SK, Natarajan R, Das I. Tandem Chemoselective 1,2-/1,4-Migration of the Thio Group in Keto Thioesters: An Efficient Approach to Substituted Butenolides. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600640] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kanchan Mal
- Organic and Medicinal Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Jadavpur, Kolkata - 700032 India
| | - Sandip Naskar
- Organic and Medicinal Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Jadavpur, Kolkata - 700032 India
| | - Shovan Kumar Sen
- Organic and Medicinal Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Jadavpur, Kolkata - 700032 India
| | - Ramalingam Natarajan
- Organic and Medicinal Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Jadavpur, Kolkata - 700032 India
| | - Indrajit Das
- Organic and Medicinal Chemistry Division; CSIR-Indian Institute of Chemical Biology; 4 Raja S. C. Mullick Road Jadavpur, Kolkata - 700032 India
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25
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Yuan H, Zheng Y, Zhang J. Understanding the Mechanism of the Lewis Acid Promoted [3 + 2] Cycloaddition of Propargylic Alcohol and α-Oxo Ketene Dithioacetals. J Org Chem 2016; 81:1989-97. [DOI: 10.1021/acs.joc.5b02826] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Haiyan Yuan
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, China
| | - Yiying Zheng
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, China
| | - Jingping Zhang
- Faculty of Chemistry, Northeast Normal University, Changchun 130024, Jilin, China
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26
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Affiliation(s)
- Lin Zhang
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Jinhuan Dong
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xianxiu Xu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, Changchun 130024, China
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27
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Kumar RK, Bi X. Catalytic σ-activation of carbon–carbon triple bonds: reactions of propargylic alcohols and alkynes. Chem Commun (Camb) 2016; 52:853-68. [DOI: 10.1039/c5cc08386a] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of organic transformations have been developed based on conceptually novel catalytic σ-activation of CC bonds of alkynes.
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Affiliation(s)
- Rapolu Kiran Kumar
- Department of Chemistry
- Northeast Normal University
- 130024 Changchun
- P. R. China
| | - Xihe Bi
- Department of Chemistry
- Northeast Normal University
- 130024 Changchun
- P. R. China
- State Key Laboratory of Elemento-Organic Chemistry
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28
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Tharra P, Baire B. The Z-enoate assisted, Meyer–Schuster rearrangement cascade: unconventional synthesis of α-arylenone esters. Chem Commun (Camb) 2016; 52:12147-12150. [DOI: 10.1039/c6cc06639a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Brønsted acid promoted nucleophilation of propargylic alcohols during the Meyer–Schuster rearrangement (M–S) has been introduced. The reverse polarization of the M–S intermediate allenyl cation has been realized by employing a novel concept of cis-enoate assistance strategy.
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Affiliation(s)
| | - Beeraiah Baire
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai-600036
- India
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29
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Zhang Z, Kumar RK, Li G, Wu D, Bi X. Synthesis of 4-Ynamides and Cyclization by the Vilsmeier Reagent to Dihydrofuran-2(3H)-ones. Org Lett 2015; 17:6190-3. [DOI: 10.1021/acs.orglett.5b03189] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhaocheng Zhang
- College
of Pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Rapolu Kiran Kumar
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Guangzhi Li
- College
of Pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Dongmei Wu
- College
of Pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Xihe Bi
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
- College
of Pharmacy, Jiamusi University, Jiamusi 154007, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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30
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Huang X, Wang J, Ni Z, Wang S, Pan Y. Synthesis of α,α-Disulfenylated Aldehydes via Oxidative Transformation of Tertiary Amines. Org Lett 2015; 17:5488-91. [DOI: 10.1021/acs.orglett.5b02876] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xin Huang
- Department
of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Jichao Wang
- Department
of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhangqin Ni
- Department
of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Sichang Wang
- Department
of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yuanjiang Pan
- Department
of Chemistry, Zhejiang University, Hangzhou 310027, China
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31
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Zhao P, Liu Y, Xi C. MeOTf-Induced Carboannulation of Isothiocyanates and Aryl Alkynes with C═S Bond Cleavage: Access to Indenones. Org Lett 2015; 17:4388-91. [DOI: 10.1021/acs.orglett.5b02201] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Peng Zhao
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yu Liu
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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32
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Luo H, Pan L, Xu X, Liu Q. Friedel–Crafts Coupling of Electron-Deficient Benzoylacetones Tuned by Remote Electronic Effects. J Org Chem 2015; 80:8282-9. [DOI: 10.1021/acs.joc.5b01371] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongmei Luo
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Ling Pan
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Xianxiu Xu
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
| | - Qun Liu
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun 130024, People’s Republic of China
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33
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Muthusamy S, Sivaguru M, Suresh E. Indium(III) chloride catalyzed highly diastereoselective domino synthesis of indenodithiepines and indenodithiocines. Chem Commun (Camb) 2015; 51:707-10. [PMID: 25418338 DOI: 10.1039/c4cc07280d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An atom-economical diastereoselective synthesis of indenodithiepines and indenodithiocines has been developed via a domino reaction of propargylic alcohols and dithioacetals in the presence of InCl3 as a catalyst. A range of functionalized dithiepines and dithiocines, fused to the indene ring, were obtained in good to excellent yields under mild conditions.
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34
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Tharra P, Baire B. Mild Approach to 2-Acylfurans via Intercepted Meyer–Schuster Rearrangement of 6-Hydroxyhex-2-en-4-ynals. J Org Chem 2015. [DOI: 10.1021/acs.joc.5b01420] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Prabhakararao Tharra
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Beeraiah Baire
- Department
of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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35
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Ning Y, Wu N, Yu H, Liao P, Li X, Bi X. Silver-Catalyzed Tandem Hydroazidation/Alkyne–Azide Cycloaddition of Diynes with TMS-N3: An Easy Access to 1,5-Fused 1,2,3-Triazole Frameworks. Org Lett 2015; 17:2198-201. [DOI: 10.1021/acs.orglett.5b00784] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yongquan Ning
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Nannan Wu
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Haifeng Yu
- School
of Chemistry and Life Science, Anshan Normal University, Anshan 114007, China
| | - Peiqiu Liao
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xingqi Li
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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36
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Mi P, Liao P, Tu T, Bi X. Decarbonylative CC Bond-Forming Reactions of Saccharins by Nickel Catalysis: Homocoupling and Cycloaddition. Chemistry 2015; 21:5332-6. [DOI: 10.1002/chem.201406227] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 01/29/2015] [Indexed: 11/10/2022]
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37
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Fang Z, Liu Y, Barry BD, Liao P, Bi X. Formation of Benzo[f]-1-indanone Frameworks by Regulable Intramolecular Annulations of gem-Dialkylthio Trienynes. Org Lett 2015; 17:782-5. [DOI: 10.1021/ol5034332] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhongxue Fang
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ying Liu
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Badru-Deen Barry
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Peiqiu Liao
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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38
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Balachandra B, Shanmugam S, Muneeswaran T, Ramakritinan M. Iodine catalyzed one-pot synthesis of highly substituted N-methyl pyrroles via [3 + 2] annulation and their in vitro evaluation as antibacterial agents. RSC Adv 2015. [DOI: 10.1039/c5ra11094g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new class of highly substituted pyrroles have been synthesized via a simple, fast, and efficient method using environmentally friendly iodine catalyzed [3 + 2] annulation.
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Affiliation(s)
- Biguvu Balachandra
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai – 625 021
- India
| | - Sivakumar Shanmugam
- Department of Organic Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai – 625 021
- India
| | - Thillaichidambaram Muneeswaran
- Department of Marine and Coastal Studies
- School of Energy, Environment and Natural Resources
- Madurai Kamaraj University
- Madurai – 625 021
- India
| | - Muthiah Ramakritinan
- Department of Marine and Coastal Studies
- School of Energy, Environment and Natural Resources
- Madurai Kamaraj University
- Madurai – 625 021
- India
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39
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Wang SW, Guo WS, Wen LR, Li M. Yb(OTf)3 catalyzed [3 + 2] annulations of D–A cyclopropanes with β-oxodithioesters: a regioselective synthesis of tetrahydrothiophenes. RSC Adv 2015. [DOI: 10.1039/c5ra06355h] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
An efficient approach to synthesis tetrahydrothiophenes was developed through the reaction of β-oxodithioesters and D–A cyclopropanes catalyzed by Yb(OTf)3. This methodology was highly regioselective.
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Affiliation(s)
- Shu-Wen Wang
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Wei-Si Guo
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Ming Li
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
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40
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Sun L, Zhu Y, Wang J, Lu P, Wang Y. Lewis Acid Catalyzed Cascade Reaction of 3-(2-Benzenesulfonamide)propargylic Alcohols to Spiro[indene-benzosultam]s. Org Lett 2014; 17:242-5. [DOI: 10.1021/ol503316e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Lang Sun
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Yuanxun Zhu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. China
| | - Jing 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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41
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Liu J, Liu Z, Liao P, Bi X. Modular Synthesis of Sulfonyl Benzoheteroles by Silver-Catalyzed Heteroaromatization of Propargylic Alcohols with p-Toluenesulfonylmethyl Isocyanide (TosMIC): Dual Roles of TosMIC. Org Lett 2014; 16:6204-7. [DOI: 10.1021/ol5031316] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianquan Liu
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Zhenhua Liu
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Peiqiu Liao
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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42
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Sun B, Ma Q, Wang Y, Zhao Y, Liao P, Bi X. Iron-Catalyzed [4C+1N] Cyclization of 4-Acetylenic Ketones with Primary Amines: Synthesis of 5-(Aryl)alkylidene-4,5-dihydropyrroles. European J Org Chem 2014. [DOI: 10.1002/ejoc.201403097] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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Liu Z, Liao P, Bi X. Lewis and Brønsted Acid Cocatalyzed Reductive Deoxyallenylation of Propargylic Alcohols with 2-Nitrobenzenesulfonylhydrazide. Chemistry 2014; 20:17277-81. [DOI: 10.1002/chem.201404692] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Indexed: 11/10/2022]
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44
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Zhang Y, Pan L, Xu X, Luo H, Liu Q. Tandem Michael addition/imine isomerization/intramolecular [3+2] cycloaddition for the regiospecific synthesis of cyclohepta[b]pyrroles. Chem Commun (Camb) 2014; 50:11039-42. [DOI: 10.1039/c4cc04665j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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45
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Liu Z, Liao P, Bi X. General Silver-Catalyzed Hydroazidation of Terminal Alkynes by Combining TMS-N3 and H2O: Synthesis of Vinyl Azides. Org Lett 2014; 16:3668-71. [DOI: 10.1021/ol501661k] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Zhenhua Liu
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Peiqiu Liao
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Xihe Bi
- Department
of Chemistry, Northeast Normal University, Changchun 130024, China
- State
Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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46
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Meng X, Liao P, Liu J, Bi X. Silver-catalyzed cyclization of 2-pyridyl alkynyl carbinols with isocyanides: divergent synthesis of indolizines and pyrroles. Chem Commun (Camb) 2014; 50:11837-9. [DOI: 10.1039/c4cc04905e] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Divergent syntheses of indolizines and 2,4-disubstituted pyrroles by the silver-catalyzed cyclization of 2-pyridyl alkynyl carbinols with isocyanides are reported.
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Affiliation(s)
- Xianyu Meng
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Peiqiu Liao
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Jianquan Liu
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
| | - Xihe Bi
- Department of Chemistry
- Northeast Normal University
- Changchun 130024, China
- State Key Laboratory and Institute of Elemento-Organic Chemistry
- Tianjin 300071, China
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