1
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Visible light-enabled iron-catalyzed selenocyclization of N-methoxy-2-alkynylbenzamide. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111881] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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2
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Wang YC, Huang K, Lai X, Shi Z, Liu JB, Qiu G. Radical bromination-induced ipso cyclization- ortho cyclization sequence of N-hydroxylethyl- N-arylpropiolamides. Org Biomol Chem 2021; 19:1940-1944. [PMID: 33569553 DOI: 10.1039/d1ob00010a] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A facile procedure is reported for the synthesis of various 2-bromo-1-phenyl-5,6-dihydro-3H,7aH-benzo[b]pyrrolo[2,1-c][1,4]oxazin-3-ones via a radical bromination-induced ipso cyclization-ortho cyclization sequence of N-arylpropiolamides in the presence of TBAB and oxone. The radical cyclization sequence involves a radical bromo α-addition into the alkyne, ipso-cyclization, and ortho-trapping of the spirocyclic intermediate.
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Affiliation(s)
- Yu-Chao Wang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Keke Huang
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Xiaojing Lai
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China. and College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
| | - Zhongning Shi
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Jin-Biao Liu
- Faculty of Materials Metallurgy and Chemistry, Jiangxi University of Science and Technology, Ganzhou 341000, China.
| | - Guanyinsheng Qiu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China.
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3
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Wang Y, Liu J, Qiu G, Yang Y, Zhou H. Metal-Free Selenizative spiro-Tricyclization of N-Hydroxylethyl- N-arylpropiolamides. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106044] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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4
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Hua Y, Chen ZY, Diao H, Zhang L, Qiu G, Gao X, Zhou H. Copper-Catalyzed Preparation of Benzo[3,4]indolo[1,2- b]isoquinoline-8-ones and Photoluminescence Exploration. J Org Chem 2020; 85:9614-9621. [PMID: 32657128 DOI: 10.1021/acs.joc.0c00936] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A facile synthesis of benzo[3,4]indolo[1,2-b]isoquinolin-8-ones is described. Under copper catalysis, the reaction proceeds with a high efficiency and a broad reaction scope. A deuteration experiment shows that the KIE value is 2.85. From the results on mechanism studies, copper-catalyzed C-H activation, intramolecular cis-addition of alkynes, and reductive elimination are involved. Moreover, this skeleton is indeed a new fluorophore, and its photophysical properties are also investigated.
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Affiliation(s)
- Yiwen Hua
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Zi-Yan Chen
- School of Medicine, Jiaxing University, Jiaxing 314001, China
| | - Hanying Diao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Lianpeng Zhang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China.,School of Materials Science and Engineering, Southwest Forestry University, Kunming 650224, China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Xiaoxing Gao
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Hongwei Zhou
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
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5
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Li Y, Liu J, He F, Wu J. Photoredox‐Catalyzed Functionalization of Alkenes with Thiourea Dioxide: Construction of Alkyl Sulfones or Sulfonamides. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.201900505] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yuewen Li
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou Zhejiang 318000 China
| | - Jin‐Biao Liu
- School of Metallurgical and Chemical EngineeringJiangxi University of Science and Technology Ganzhou Jiangxi 341000 China
| | - Fu‐Sheng He
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou Zhejiang 318000 China
| | - Jie Wu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou Zhejiang 318000 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic ChemistryChinese Academy of Sciences, 345 Lingling Road Shanghai 200032 China
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6
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Liu R, Yang M, Xie W, Dong W, Zhou H, Yadav S, Potkin VI, Qiu G. Synthesis of 3-Hydroxyisoindolin-1-ones through 1,4-Dioxane-Mediated Hydroxylhydrative aza-Cyclization of 2-Alkynylbenzamide in Water. J Org Chem 2020; 85:5312-5320. [DOI: 10.1021/acs.joc.9b03466] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Renzhi Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Min Yang
- Department of Forensic Science, Gannan Medical University, Ganzhou, Jiangxi 341000, China
| | - Wenlin Xie
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Wenbi Dong
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Hongwei Zhou
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Sarita Yadav
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Vladimir Ivanovich Potkin
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China
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7
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Zhu T, Xie S, Rojsitthisak P, Wu J. Recent advances in the direct β-C(sp2)–H functionalization of enamides. Org Biomol Chem 2020; 18:1504-1521. [DOI: 10.1039/c9ob02649e] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Recent advances in the direct β-C(sp2)–H functionalization of enamides, mainly including arylation, alkenylation, alkynylation, alkylation, acylation, sulfonylation, phosphorylation, and others, are reported.
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Affiliation(s)
- Tonghao Zhu
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies
- Taizhou University
- Taizhou 318000
- China
| | - Shimin Xie
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
- China
| | - Pornchai Rojsitthisak
- Department of Food and Pharmaceutical Chemistry
- Faculty of Pharmaceutical Sciences
- Chulalongkorn University
- Patumwan
- Thailand
| | - Jie Wu
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies
- Taizhou University
- Taizhou 318000
- China
- State Key Laboratory of Organometallic Chemistry
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8
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Zhou K, Liu JB, Xie W, Ye S, Wu J. Photoinduced synthesis of 2-sulfonylacetonitriles with the insertion of sulfur dioxide under ultraviolet irradiation. Chem Commun (Camb) 2020; 56:2554-2557. [PMID: 32010913 DOI: 10.1039/d0cc00351d] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Metal-free insertion of sulfur dioxide with aryl iodides and 3-azido-2-methylbut-3-en-2-ol under ultraviolet irradiation at room temperature is achieved, giving rise to 2-(arylsulfonyl)acetonitriles in moderate to good yields. Alkyl iodide is also workable under these conditions. This transformation proceeds smoothly under mild conditions with a broad substrate scope. Various functional groups are compatible including amino, ester, halo, and trifluoromethyl groups. No metal catalyst or additive is needed during the reaction process. Mechanistic studies show that under ultraviolet irradiation, an aryl radical is generated in situ from aryl iodide, which undergoes subsequent sulfonylation via the insertion of sulfur dioxide leading to arylsulfonyl radical intermediates. Then the arylsulfonyl radical reacts with 3-azido-2-methylbut-3-en-2-ol giving rise to the corresponding 2-(arylsulfonyl)acetonitrile.
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Affiliation(s)
- Kaida Zhou
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, China.
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
| | - Wenlin Xie
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Shengqing Ye
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, China.
| | - Jie Wu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, China. and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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9
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Chen D, Li J, Cui P, Shan Y, Zhao Y, Qiu G. Tandem Oxidative Radical Halogenated Addition of Alkynyl Imines: Regioselective Synthesis of 3-Haloquinolines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901395] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Dianpeng Chen
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Jianming Li
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Peiying Cui
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Yingying Shan
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Yutong Zhao
- Chemistry and Chemical Engineering; Qufu Normal University; 273165 Qufu Shandong China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Science and Engineering; Jiaxing University; 314001 Jiaxing Zhejiang China
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10
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Wang YC, Liu JB, Zhou H, Xie W, Rojsitthisak P, Qiu G. Ortho-Hydroxylative ipso-Cyclization of N-arylpropiolamide. J Org Chem 2019; 85:1906-1914. [DOI: 10.1021/acs.joc.9b02590] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yu-Chao Wang
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology, 86 Hongqi Road, Ganzhou 341000, China
| | - Hongwei Zhou
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
| | - Wenlin Xie
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
| | - Pornchai Rojsitthisak
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, 254 Phayathai Road, Patumwan, Bangkok 10330, Thailand
| | - Guanyinsheng Qiu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, Zhejiang, China
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11
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Huang K, Li JN, Qiu G, Xie W, Liu JB. ZnBr 2/Oxone-mediated ipso-cyclization of N-(3-phenylprop-2-yn-1-yl)aniline. RSC Adv 2019; 9:33460-33464. [PMID: 35529126 PMCID: PMC9073544 DOI: 10.1039/c9ra06646b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 10/12/2019] [Indexed: 11/21/2022] Open
Abstract
In this work, a selective synthetic strategy towards 1-azaspiro[4.5]deca-3,6,9-trien-8-ones from N-tosyl-N-(prop-2-yn-1-yl)aniline is developed. The transformation proceeds smoothly in a mixed solvent including acetonitrile and water when ZnBr2 and Oxone are employed. Mechanism studies show that the reaction proceeds in a regioselective manner via a radical ipso-cyclization pathway.
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Affiliation(s)
- Keke Huang
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology 86 Hongqi Road Ganzhou 341000 China
| | - Jia-Ni Li
- College of Biological, Chemical Science and Engineering, Jiaxing University 118 Jiahang Road Jiaxing 314001 China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Science and Engineering, Jiaxing University 118 Jiahang Road Jiaxing 314001 China
- Department of Chemistry, Fudan Unversity Shanghai 200438 China
| | - Wenlin Xie
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology Xiangtan 411201 China
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering, Jiangxi University of Science and Technology 86 Hongqi Road Ganzhou 341000 China
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12
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Qiu G, Chen ZF, Xie W, Zhou H. TBAB-Mediated Radical 5-exo-trig ipso
-Cyclization of 2-Arylbenzamide for the Synthesis of Spiro[cyclohexane-1,1′-isoindoline]-2,5-diene-3′,4-dione. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900321] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Guanyinsheng Qiu
- Department of Chemistry; Fudan University; 220 Handan Road 200433 Shanghai China
- College of Biological; Chemical Science and Engineering; Jiaxing University; 118 Jiahang Road 314001 Jiaxing China
| | - Zhi-Feng Chen
- College of Biological; Chemical Science and Engineering; Jiaxing University; 118 Jiahang Road 314001 Jiaxing China
| | - Wenlin Xie
- School of Chemistry and Chemical Engineering; Chemical Science and Engineering; Hunan University of Science and Technology; 411201 Hunan China
| | - Hongwei Zhou
- College of Biological; Chemical Science and Engineering; Jiaxing University; 118 Jiahang Road 314001 Jiaxing China
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13
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Wang YH, Qiu G, Zhou H, Xie W, Liu JB. Regioselective cyclization of 2-alkynylbenzoic acid in water for the synthesis of isocoumarin. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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14
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TBAB-mediated radical 6-endo-trig ortho-cyclization of N-aryl-N-(prop-2-yn-1-yl)benzenesulfonamide for the synthesis of 3-bromo-1,2-dihydroquinoline. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Synthesis of 3-(Bromomethylene)isobenzofuran-1(3H)-ones through regioselective 5-exo-dig bromocyclization of 2-alkynylbenzoic acids. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.11.045] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Wang YH, Ouyang B, Qiu G, Zhou H, Liu JB. Oxidative oxy-cyclization of 2-alkynylbenzamide enabled by TBAB/Oxone: switchable synthesis of isocoumarin-1-imines and isobenzofuran-1-imine. Org Biomol Chem 2019; 17:4335-4341. [DOI: 10.1039/c9ob00320g] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A TBAB-controlled switchable synthesis of isocoumarin-1-imine and isobenzofuran-1-imine from 2-alkynylbenzamide in water is described in this paper.
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Affiliation(s)
- Yan-Hua Wang
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
- College of Biological
| | - Banlai Ouyang
- Department of Chemistry
- Nanchang Normal University
- Nanchang 330032
- P. R. China
- School of Chemistry and Chemical Engineering
| | - Guanyinsheng Qiu
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Hongwei Zhou
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
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17
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Wang YC, Wang RX, Qiu G, Zhou H, Xie W, Liu JB. ortho-Amide-directed 2,4-dibromohydration of conjugated enynes. Org Chem Front 2019. [DOI: 10.1039/c9qo00540d] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A NBS-mediated and ortho-amide-directed 2,4-dibromohydration of enynes is described in this paper.
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Affiliation(s)
- Yu-Chao Wang
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Rui-Xiang Wang
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Guanyinsheng Qiu
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Hongwei Zhou
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Wenlin Xie
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Hunan 411201
- China
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
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18
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Li Z, Fang C, Zheng Y, Qiu G, Li X, Zhou H. Multicatalytic Beckmann rearrangement of 2-hydroxylarylketone oxime: Switchable synthesis of benzo[d]oxazoles and N-(2-hydroxylaryl)amides. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.043] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Xu J, Zhang Y, Qin T, Zhao X. Catalytic Regio- and Enantioselective Oxytrifluoromethylthiolation of Aliphatic Internal Alkenes by Neighboring Group Assistance. Org Lett 2018; 20:6384-6388. [DOI: 10.1021/acs.orglett.8b02672] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Jia Xu
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Yuanyuan Zhang
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Tian Qin
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Xiaodan Zhao
- Institute of Organic Chemistry & MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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20
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Wang YH, Liu JB, Ouyang B, Zhou H, Qiu G. TBAI-mediated regioselective 5-exo-dig iodinative oxocyclization of 2-alkynylbenzamides for the synthesis of isobenzofuran-1-imines and isobenzofurans. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.07.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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21
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Liao L, Zhang H, Zhao X. Selenium-π-Acid Catalyzed Oxidative Functionalization of Alkynes: Facile Access to Ynones and Multisubstituted Oxazoles. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01595] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lihao Liao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Hang Zhang
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
| | - Xiaodan Zhao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, P. R. China
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22
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Zhang L, Ma L, Zhou H, Yao J, Li X, Qiu G. Synthesis of α-Methylene-β-lactams Enabled by Base-Promoted Intramolecular 1,2-Addition of N-Propiolamide and C–C Bond Migrating Cleavage of Aziridine. Org Lett 2018; 20:2407-2411. [DOI: 10.1021/acs.orglett.8b00742] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lianpeng Zhang
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| | - Lele Ma
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| | - Hongwei Zhou
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| | - Jinzhong Yao
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| | - Xiaofang Li
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, Hunan 411201, China
| | - Guanyinsheng Qiu
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
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23
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Wang RX, Yuan ST, Liu JB, Wu J, Qiu G. Regioselective 5-exo-dig oxy-cyclization of 2-alkynylbenzamide for the synthesis of isobenzofuran-1-imines and isobenzofuran. Org Biomol Chem 2018; 16:4501-4508. [DOI: 10.1039/c8ob00779a] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A TBAB-mediated regioselective radical cyclization of 2-alkynylbenzamide is described herein for the synthesis of isobenzofuran-1-imines. The reactions proceeded smoothly under mild conditions.
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Affiliation(s)
- Rui-Xiang Wang
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Si-Tian Yuan
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
- College of Biological
| | - Jin-Biao Liu
- School of Metallurgical and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Jie Wu
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- China
| | - Guanyinsheng Qiu
- College of Biological
- Chemical Science and Engineering
- Jiaxing University
- Jiaxing 314001
- China
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