51
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Deng W, Ye C, Li Y, Li D, Bao H. Iron-Catalyzed Oxyalkylation of Terminal Alkynes with Alkyl Iodides. Org Lett 2018; 21:261-265. [PMID: 30582704 DOI: 10.1021/acs.orglett.8b03689] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A general oxyalkylation of terminal alkynes enabled by iron catalysis has been developed. Primary and secondary alkyl iodides acted as the alkylating reagents and afforded a range of α-alkylated ketones under mild reaction conditions. Acetyl tert-butyl peroxide (TBPA) was used as the radical relay precursor, providing the initiated methyl radical to start the radical relay process. Preliminary mechanistic studies were conducted, and late-stage functionalizations of natural product derivatives were performed.
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Affiliation(s)
- Weili Deng
- Key Laboratory of Innate Immune Biology of Fujian Province, Biomedical Research Center of South China, College of Life Sciences , Fujian Normal University , 1 Keji Road , Fuzhou 350117 , P. R. China
| | - Changqing Ye
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou , Fujian 350002 , P. R. of China
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou , Fujian 350002 , P. R. of China
| | - Daliang Li
- Key Laboratory of Innate Immune Biology of Fujian Province, Biomedical Research Center of South China, College of Life Sciences , Fujian Normal University , 1 Keji Road , Fuzhou 350117 , P. R. China
| | - Hongli Bao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou , Fujian 350002 , P. R. of China
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52
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Parvatkar PT, Manetsch R, Banik BK. Metal-Free Cross-Dehydrogenative Coupling (CDC): Molecular Iodine as a Versatile Catalyst/Reagent for CDC Reactions. Chem Asian J 2018; 14:6-30. [DOI: 10.1002/asia.201801237] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/21/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Prakash T. Parvatkar
- Department of Chemistry and Chemical Biology; Northeastern University, 102 Hurtig Hall; 360 Huntington Avenue Boston MA 02115 USA
| | - Roman Manetsch
- Department of Chemistry and Chemical Biology; Northeastern University, 102 Hurtig Hall; 360 Huntington Avenue Boston MA 02115 USA
- Department of Pharmaceutical Sciences; Northeastern University, 102 Hurtig Hall; 360 Huntington Avenue Boston MA 02115 USA
| | - Bimal K. Banik
- Community Health System of South Texas; 3135 South Sugar Road Edinburg TX 78539 USA
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53
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Ma ZY, Guo LN, Gu YR, Chen L, Duan XH. Iminyl Radical-Mediated Controlled Hydroxyalkylation of Remote C(sp
3
)-H Bond via Tandem 1,5-HAT and Difunctionalization of Aryl Alkenes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801198] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhi-Yong Ma
- Department of Chemistry; School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
| | - Li-Na Guo
- Department of Chemistry; School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
| | - Yu-Rui Gu
- Department of Chemistry; School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
| | - Li Chen
- Department of Chemistry; School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
| | - Xin-Hua Duan
- Department of Chemistry; School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter; Xi'an Jiaotong University; Xi'an 710049 People's Republic of China
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54
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Wu ZJ, Li SR, Xu HC. Synthesis of N-Heterocycles by Dehydrogenative Annulation of N-Allyl Amides with 1,3-Dicarbonyl Compounds. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807683] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zheng-Jian Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; i ChEM and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Shi-Rui Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; i ChEM and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Hai-Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; i ChEM and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
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55
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Wu ZJ, Li SR, Xu HC. Synthesis of N-Heterocycles by Dehydrogenative Annulation of N-Allyl Amides with 1,3-Dicarbonyl Compounds. Angew Chem Int Ed Engl 2018; 57:14070-14074. [DOI: 10.1002/anie.201807683] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 08/28/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Zheng-Jian Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; i ChEM and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Shi-Rui Li
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; i ChEM and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Hai-Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces; Key Laboratory for Chemical Biology of Fujian Province; i ChEM and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
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56
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Dayakar C, Raju B. A Selective Three-Component, One-Pot Approach for the Synthesis of 1,2-Dihydroquinazolines and Quinazolines. ChemistrySelect 2018. [DOI: 10.1002/slct.201801430] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Cherupally Dayakar
- Organic Synthesis & Process Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
| | - BhimapakaChina Raju
- Organic Synthesis & Process Chemistry Division; CSIR-Indian Institute of Chemical Technology; Hyderabad-500007 India
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57
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Wang S, Tang S, Lei A. Tuning radical reactivity for selective radical/radical cross-coupling. Sci Bull (Beijing) 2018; 63:1006-1009. [PMID: 36658886 DOI: 10.1016/j.scib.2018.06.004] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/30/2018] [Accepted: 06/01/2018] [Indexed: 01/21/2023]
Abstract
Radical/radical cross-coupling represents a straightforward way for the construction of new chemical bonds in theory and has received more and more attention over the past several years. Until now, it is challenging to achieve the selective bond formation between two transient radicals since selective radical cross-coupling usually happens between persistent radical and transient radical. However, the number of persistent radicals is much less than that of transient radicals. These issues limit the application of radical/radical cross-coupling in the construction of new chemical bonds. To solve this, we proposed a novel strategy "tuning radical reactivity" that could tune transient radical into persistent radical. This paper will introduce the concept and recent developments of "tuning radical reactivity".
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Affiliation(s)
- Shengchun Wang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Shan Tang
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China.
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58
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Qin M, Tian Y, Guo X, Yuan X, Yang X, Chen B. I 2
/TBPB Mediated Oxidative Reaction to Construct of Imidazo[1,5-α]pyridines under Metal-Free Conditions. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800285] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Mingda Qin
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Yuan Tian
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Xin Guo
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Xinglong Yuan
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Xueying Yang
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 China
- Zhongwei High-tech Institute of Lanzhou University; Zhongwei Ningxia 755500 China
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59
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Liu X, Zhou Y, Chen G, Yang Z, Li Q, Liu P. Iodine-catalyzed oxidative annulation of 3-cyanoacetylindoles with benzylamines: facile access to 5-(3-indolyl)oxazoles. Org Biomol Chem 2018; 16:3572-3575. [PMID: 29708248 DOI: 10.1039/c8ob00833g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iodine-catalyzed oxidative annulation of 3-cyanoacetylindoles with benzylamines has been developed. This reaction enables the convenient synthesis of a variety of 5-(3-indolyl)oxazoles under mild conditions with broad functional group compatibility.
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Affiliation(s)
- Xiaozu Liu
- Pharmacy School, Zunyi Medical University, Zunyi 563006, P. R. China
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60
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Angapelly S, Ramya PVS, Sodhi R, Angeli A, Rangan K, Nagesh N, Supuran CT, Arifuddin M. Iodine-mediated one-pot intramolecular decarboxylation domino reaction for accessing functionalised 2-(1,3,4-oxadiazol-2-yl)anilines with carbonic anhydrase inhibitory action. J Enzyme Inhib Med Chem 2018. [PMID: 29536768 PMCID: PMC6010027 DOI: 10.1080/14756366.2018.1443447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
A practical and transition metal-free one-pot domino synthesis of diversified (1,3,4-oxadiazol-2-yl)anilines has been developed employing isatins and hydrazides as the starting materials, in the presence of molecular iodine. The prominent feature of this domino process involves consecutive condensation, hydrolytic ring cleavage, and an intramolecular decarboxylation, in a one-pot process that leads to the oxidative formation of a C–O bond. Fluorescence properties of some of the representative molecules obtained in this way were studied. The synthesised 2-(1,3,4-oxadiazolo-2-yl)aniline-benzene sulphonamides (8a–o) were screened for their carbonic anhydrase (CA, EC 4.2.1.1) inhibitory activity. Most of the compounds exhibited low micromolar to nanomolar activity against human (h) isoforms hCA I, hCA II, hCA IV, and XII, with some compounds displaying selective CA inhibitory activity towards hCA II with KIs of 6.4–17.6 nM.
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Affiliation(s)
- Srinivas Angapelly
- a National Institute of Pharmaceutical Education and Research (NIPER) - Hyderabad , Hyderabad , India
| | - P V Sri Ramya
- a National Institute of Pharmaceutical Education and Research (NIPER) - Hyderabad , Hyderabad , India
| | - Rohini Sodhi
- a National Institute of Pharmaceutical Education and Research (NIPER) - Hyderabad , Hyderabad , India
| | - Andrea Angeli
- b Neurofarba Department , Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence , Florence , Italy
| | - Krishnan Rangan
- c Birla Institute of Technology & Science, Pilani , Hyderabad , India
| | - Narayana Nagesh
- d Center for Cellular and Molecular Biology (CCMB) , Hyderabad , India
| | - Claudiu T Supuran
- b Neurofarba Department , Sezione di Scienze Farmaceutiche e Nutraceutiche, University of Florence , Florence , Italy
| | - Mohammed Arifuddin
- a National Institute of Pharmaceutical Education and Research (NIPER) - Hyderabad , Hyderabad , India
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61
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Zhang JY, Duan XH, Yang JC, Guo LN. Redox-Neutral Cyanoalkylation/Cyclization of Olefinic 1,3-Dicarbonyls with Cycloketone Oxime Esters: Access to Cyanoalkylated Dihydrofurans. J Org Chem 2018; 83:4239-4249. [DOI: 10.1021/acs.joc.8b00271] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jia-Yu Zhang
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jun-Cheng Yang
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Li-Na Guo
- Department of Chemistry, School of Science and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
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62
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Roslan II, Ng KH, Gondal MA, Basheer C, Dastageer MA, Jaenicke S, Chuah GK. Visible Light-Mediated Coupling of Thioureas and 1,3-Dicarbonyls: Towards a Leaving Group-Free Synthesis of Aminothiazoles. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701565] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Irwan Iskandar Roslan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543
| | - Kian-Hong Ng
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543
| | - Mohammed Ashraf Gondal
- Physics Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Chanbasha Basheer
- Chemistry Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Mohamed A. Dastageer
- Physics Department; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Stephan Jaenicke
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543
| | - Gaik-Khuan Chuah
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543
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63
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Gao Q, Liu Z, Wang Y, Wu X, Zhang J, Wu A. I2
-Triggered Reductive Generation of N-Centered Iminyl Radicals: An Isatin-to-Quinoline Strategy for the Introduction of Primary Amides. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701610] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qinghe Gao
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Zhaomin Liu
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Yakun Wang
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry; Central China Normal University; Wuhan 430079 People's Republic of China
| | - Jixia Zhang
- School of Pharmacy; Xinxiang Medical University; Xinxiang Henan 453003 People's Republic of China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology; Ministry of Education; College of Chemistry; Central China Normal University; Wuhan 430079 People's Republic of China
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64
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Zhang Z, Li C, Wang SH, Zhang FM, Han X, Tu YQ, Zhang XM. Tandem S N2' nucleophilic substitution/oxidative radical cyclization of aryl substituted allylic alcohols with 1,3-dicarbonyl compounds. Org Biomol Chem 2018; 15:3239-3247. [PMID: 28332678 DOI: 10.1039/c7ob00620a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel and efficient tandem SN2' nucleophilic substitution/oxidative radical cyclization reaction of aryl substituted allylic alcohols with 1,3-dicarbonyl compounds has been developed by using Mn(OAc)3 as an oxidant, which enables the expeditious synthesis of polysubstituted dihydrofuran (DHF) derivatives in moderate to high yields. The use of weakly acidic hexafluoroisopropanol (HFIP) as the solvent rather than AcOH has successfully improved the yields and expanded the substrate scope of this type of radical cyclization reactions. Mechanistic studies confirmed the cascade reaction process involving a final radical cyclization.
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Affiliation(s)
- Zhen Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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65
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Han T, Wang Y, Li HL, Luo X, Deng WP. Synthesis of Polysubstituted 3-Aminothiophenes from Thioamides and Allenes via Tandem Thio-Michael Addition/Oxidative Annulation and 1,2-Sulfur Migration. J Org Chem 2018; 83:1538-1542. [DOI: 10.1021/acs.joc.7b02616] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Teng Han
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Yu Wang
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Hong-Liang Li
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xiaoyan Luo
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Wei-Ping Deng
- School of Pharmacy and Shanghai Key
Laboratory of New Drug Design, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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66
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Hou ZW, Mao ZY, Melcamu YY, Lu X, Xu HC. Electrochemical Synthesis of Imidazo-Fused N-Heteroaromatic Compounds through a C−N Bond-Forming Radical Cascade. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711876] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhong-Wei Hou
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Zhong-Yi Mao
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Yared Yohannes Melcamu
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Hai-Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
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67
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Hou ZW, Mao ZY, Melcamu YY, Lu X, Xu HC. Electrochemical Synthesis of Imidazo-Fused N-Heteroaromatic Compounds through a C−N Bond-Forming Radical Cascade. Angew Chem Int Ed Engl 2018; 57:1636-1639. [DOI: 10.1002/anie.201711876] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Zhong-Wei Hou
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Zhong-Yi Mao
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Yared Yohannes Melcamu
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Xin Lu
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
| | - Hai-Chao Xu
- State Key Laboratory of Physical Chemistry of Solid Surfaces i ChEM, and College of Chemistry and Chemical Engineering; Xiamen University; Xiamen 361005 P. R. China
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68
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Gao Q, Yan H, Wu M, Sun J, Yan X, Wu A. Direct synthesis of 2-methylpyridines via I2-triggered [3 + 2 + 1] annulation of aryl methyl ketoxime acetates with triethylamine as the carbon source. Org Biomol Chem 2018. [DOI: 10.1039/c8ob00349a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
I2-Triggered reductive generation of iminyl radicals for the synthesis of 2-methylpyridines by employing triethylamine as the carbon source.
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Affiliation(s)
- Qinghe Gao
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Huijuan Yan
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Manman Wu
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Jiajia Sun
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Xiqing Yan
- School of Pharmacy
- Xinxiang Medical University
- Xinxiang
- P. R. China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology
- Ministry of Education
- College of Chemistry
- Central China Normal University
- Wuhan 430079
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69
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Xia S, Liu TX, Zhang P, Ma J, Liu Q, Ma N, Zhang Z, Zhang G. Broad Synthesis of Disubstituted Dihydrofuran-Fused [60]Fullerene Derivatives via Cu(I)/Ag(I)-Mediated Synergistic Annulation Reaction. J Org Chem 2017; 83:862-870. [DOI: 10.1021/acs.joc.7b02848] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shilu Xia
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
Key Laboratory of Green Chemical Media and Reactions, Ministry of
Education, Henan Key Laboratory of Organic Functional Molecule and
Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Tong-Xin Liu
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
Key Laboratory of Green Chemical Media and Reactions, Ministry of
Education, Henan Key Laboratory of Organic Functional Molecule and
Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Pengling Zhang
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
Key Laboratory of Green Chemical Media and Reactions, Ministry of
Education, Henan Key Laboratory of Organic Functional Molecule and
Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jinliang Ma
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
Key Laboratory of Green Chemical Media and Reactions, Ministry of
Education, Henan Key Laboratory of Organic Functional Molecule and
Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Qingfeng Liu
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
Key Laboratory of Green Chemical Media and Reactions, Ministry of
Education, Henan Key Laboratory of Organic Functional Molecule and
Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Nana Ma
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
Key Laboratory of Green Chemical Media and Reactions, Ministry of
Education, Henan Key Laboratory of Organic Functional Molecule and
Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Zhiguo Zhang
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
Key Laboratory of Green Chemical Media and Reactions, Ministry of
Education, Henan Key Laboratory of Organic Functional Molecule and
Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Guisheng Zhang
- Collaborative Innovation
Center of Henan Province for Green Manufacturing of Fine Chemicals,
Key Laboratory of Green Chemical Media and Reactions, Ministry of
Education, Henan Key Laboratory of Organic Functional Molecule and
Drug Innovation, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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70
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Rahaman R, Barman P. Iodine-Catalyzed Mono- and Disulfenylation of Indoles in PEG400
through a Facile Microwave-Assisted Process. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701293] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rajjakfur Rahaman
- Department of Chemistry; National Institute of Technology Silchar; 788010 Silchar India
| | - Pranjit Barman
- Department of Chemistry; National Institute of Technology Silchar; 788010 Silchar India
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71
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Liu K, Tang S, Huang P, Lei A. External oxidant-free electrooxidative [3 + 2] annulation between phenol and indole derivatives. Nat Commun 2017; 8:775. [PMID: 28974679 PMCID: PMC5626759 DOI: 10.1038/s41467-017-00873-1] [Citation(s) in RCA: 132] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 08/02/2017] [Indexed: 11/09/2022] Open
Abstract
Intermolecular [3 + 2] annulation is one of the most straightforward approaches to construct five membered heterocycles. However, it generally requires the use of functionalized substrates. An ideal reaction approach is to achieve dehydrogenative [3 + 2] annulation under oxidant-free conditions. Here we show an electrooxidative [3 + 2] annulation between phenols and N-acetylindoles under undivided electrolytic conditions. Neither external chemical oxidants nor metal catalysts are required to facilitate the dehydrogenation processes. This reaction protocol provides an environmentally friendly way for the selective synthesis of benzofuroindolines. Various N-acetylindoles bearing different C-3 and C-2 substituents are suitable in this electrochemical transformation, furnishing corresponding benzofuroindolines in up to 99% yield.Electrochemical oxidation provides a green alternative to the use of hazardous chemical oxidants and forcing conditions. Here, the authors show the electrocatalytic cross-coupling of phenols and indoles to generate biologically relevant benzofuroindolines in high yields.
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Affiliation(s)
- Kun Liu
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, China
| | - Shan Tang
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, China
| | - Pengfei Huang
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, the Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, China. .,State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China.
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72
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Chen R, Zhao Y, Sun H, Shao Y, Xu Y, Ma M, Ma L, Wan X. In Situ Generation of Quinolinium Ylides from Diazo Compounds: Copper-Catalyzed Synthesis of Indolizine. J Org Chem 2017; 82:9291-9304. [DOI: 10.1021/acs.joc.7b01042] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rongxiang Chen
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Yanwei Zhao
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Hongmei Sun
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Ying Shao
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
- Jiangsu
Key Laboratory of Advanced Catalytic Materials and Technology, Advanced
catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, P. R. China
| | - Yudong Xu
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Meihua Ma
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Liang Ma
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
| | - Xiaobing Wan
- Key
Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China
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73
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74
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Yi H, Zhang G, Wang H, Huang Z, Wang J, Singh AK, Lei A. Recent Advances in Radical C-H Activation/Radical Cross-Coupling. Chem Rev 2017. [PMID: 28639787 DOI: 10.1021/acs.chemrev.6b00620] [Citation(s) in RCA: 853] [Impact Index Per Article: 121.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Research and industrial interest in radical C-H activation/radical cross-coupling chemistry has continuously grown over the past few decades. These reactions offer fascinating and unconventional approaches toward connecting molecular fragments with high atom- and step-economy that are often complementary to traditional methods. Success in this area of research was made possible through the development of photocatalysis and first-row transition metal catalysis along with the use of peroxides as radical initiators. This Review provides a brief and concise overview of the current status and latest methodologies using radicals or radical cations as key intermediates produced via radical C-H activation. This Review includes radical addition, radical cascade cyclization, radical/radical cross-coupling, coupling of radicals with M-R groups, and coupling of radical cations with nucleophiles (Nu).
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Affiliation(s)
- Hong Yi
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Guoting Zhang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Huamin Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Zhiyuan Huang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Jue Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Atul K Singh
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China.,National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang 330022, China
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75
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Wen J, Zhang F, Shi W, Lei A. Metal-Free Direct Alkylation of Ketene Dithioacetals by Oxidative C(sp2
)−H/C(sp3
)−H Cross-Coupling. Chemistry 2017; 23:8814-8817. [DOI: 10.1002/chem.201701664] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Indexed: 01/23/2023]
Affiliation(s)
- Jiangwei Wen
- Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Fan Zhang
- Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Wenyan Shi
- Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
| | - Aiwen Lei
- Institute for Advanced Studies (IAS); College of Chemistry and Molecular Sciences; Wuhan University; Wuhan 430072 Hubei P. R. China
- Beijing National Laboratory for Molecular Sciences; CAS Key Laboratory of Molecular Recognization and Function Institute of Chemistry; Chinese Academy of Sciences; Beijing 100190 P. R. China
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76
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Wu X, Zhao P, Geng X, Zhang J, Gong X, Wu YD, Wu AX. Direct Oxidative Cleavage of Multiple Csp3–H Bonds and a C–C Bond in 2-(Pyridin-2-yl)acetate Derivatives: Formal [3 + 1 + 1] Synthesis of 3-(Pyridin-2-yl)indolizine Skeletons. Org Lett 2017; 19:3319-3322. [DOI: 10.1021/acs.orglett.7b01492] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiao Geng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Jingjing Zhang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xingxing Gong
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - An-xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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77
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Lou J, Wang Q, Wu K, Wu P, Yu Z. Iron-Catalyzed Oxidative C–H Functionalization of Internal Olefins for the Synthesis of Tetrasubstituted Furans. Org Lett 2017; 19:3287-3290. [DOI: 10.1021/acs.orglett.7b01431] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jiang Lou
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Quannan Wang
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Kaikai Wu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
| | - Ping Wu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhengkun Yu
- Dalian Institute
of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan
Road, Dalian 116023, P. R. China
- State Key Laboratory of Organometallic
Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, P. R. China
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78
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Wen J, Shi W, Zhang F, Liu D, Tang S, Wang H, Lin XM, Lei A. Electrooxidative Tandem Cyclization of Activated Alkynes with Sulfinic Acids To Access Sulfonated Indenones. Org Lett 2017; 19:3131-3134. [DOI: 10.1021/acs.orglett.7b01256] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiangwei Wen
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072, Hubei, China
- Center
for Nanoscale Materials, Argonne National Laboratory, 9700 South
Cass Avenue, Argonne, Illinois 60439, United States
| | - Wenyan Shi
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Fan Zhang
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Dong Liu
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Shan Tang
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Huamin Wang
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072, Hubei, China
| | - Xiao-Min Lin
- Center
for Nanoscale Materials, Argonne National Laboratory, 9700 South
Cass Avenue, Argonne, Illinois 60439, United States
| | - Aiwen Lei
- The
Institute for Advanced Studies (IAS), College of Chemistry and Molecular
Sciences, Wuhan University, Wuhan 430072, Hubei, China
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79
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Wu Y, Huang Z, Luo Y, Liu D, Deng Y, Yi H, Lee JF, Pao CW, Chen JL, Lei A. X-ray Absorption and Electron Paramagnetic Resonance Guided Discovery of the Cu-Catalyzed Synthesis of Multiaryl-Substituted Furans from Aryl Styrene and Ketones Using DMSO as the Oxidant. Org Lett 2017; 19:2330-2333. [DOI: 10.1021/acs.orglett.7b00865] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong Wu
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Zhiyuan Huang
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Yi Luo
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Dong Liu
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Yi Deng
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Hong Yi
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P.R. China
| | - Jyh-Fu Lee
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Jeng-Lung Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Aiwen Lei
- College
of Chemistry and Molecular Sciences, the Institute for Advanced Studies
(IAS), Wuhan University, Wuhan, Hubei 430072, P.R. China
- State
Key Laboratory and Institute of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P.R. China
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80
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Ullah Z, Kim M. Metal-Free α-C(sp³)-H Functionalized Oxidative Cyclization of Tertiary N,N-Diaryl Amino Alcohols: Theoretical Approach for Mechanistic Pathway. Molecules 2017; 22:molecules22040547. [PMID: 28353679 PMCID: PMC6153740 DOI: 10.3390/molecules22040547] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 03/18/2017] [Accepted: 03/24/2017] [Indexed: 11/16/2022] Open
Abstract
The mechanistic pathway of TEMPO/I₂-mediated oxidative cyclization of N,N-diaryl amino alcohols 1 was investigated. Based on direct empirical experiments, three key intermediates (aminium radical cation 3, α-aminoalkyl radical 4, and iminium 5), four types of reactive species (radical TEMPO, cationic TEMPO, TEMPO-I, and iodo radical), and three types of pathways ((1) SET/PCET mechanism; (2) HAT/1,6-H transfer mechanism; (3) ionic mechanism) were assumed. Under the assumption, nine free energy diagrams were acquired through density functional theory calculations. From the comparison of solution-phase free energy, some possible mechanisms were excluded, and then the chosen plausible mechanisms were concretized using the more stable intermediate 7.
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Affiliation(s)
- Zakir Ullah
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, Yeonsu-gu, Incheon 21936, Korea.
| | - Mihyun Kim
- Gachon Institute of Pharmaceutical Science & Department of Pharmacy, College of Pharmacy, Gachon University, Yeonsu-gu, Incheon 21936, Korea.
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81
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Iron-Catalyzed Oxidative Cyclization of 1,6-Enones with Aldehydes: Synthesis of Functionalized 3,4-Dihydro-2H-pyrans. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600721] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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82
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Wei W, Cui H, Yang D, Liu X, He C, Dai S, Wang H. Metal-free molecular iodine-catalyzed direct sulfonylation of pyrazolones with sodium sulfinates leading to sulfonated pyrazoles at room temperature. Org Chem Front 2017. [DOI: 10.1039/c6qo00403b] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and highly efficient iodine-catalyzed sulfonylation of pyrazolones with sodium sulfinates has been developed under mild and metal-free conditions.
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Affiliation(s)
- Wei Wei
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Huanhuan Cui
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Daoshan Yang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Xiaoxia Liu
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Chenglong He
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Shicui Dai
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Hua Wang
- The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
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83
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Verma F, Singh PK, Bhardiya SR, Singh M, Rai A, Rai VK. A co-operative effect of visible light photo-catalysis and CoFe2O4 nanoparticles for green synthesis of furans in water. NEW J CHEM 2017. [DOI: 10.1039/c6nj04091h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A novel approach to poly-functionalized furan synthesis is disclosed via oxidative decarboxylative [3+2] cycloaddition using co-operative catalysis by visible light and CoFe2O4 nanoparticles.
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Affiliation(s)
- Fooleswar Verma
- Department of Chemistry
- School of Physical Sciences
- Guru Ghasidas Vishwavidyalaya
- Bilaspur-495 009
- India
| | - Puneet K. Singh
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi
- India
| | - Smita R. Bhardiya
- Department of Chemistry
- School of Physical Sciences
- Guru Ghasidas Vishwavidyalaya
- Bilaspur-495 009
- India
| | - Manorama Singh
- Department of Chemistry
- School of Physical Sciences
- Guru Ghasidas Vishwavidyalaya
- Bilaspur-495 009
- India
| | - Ankita Rai
- School of Physical Sciences
- Jawaharlal Nehru University
- New Delhi
- India
| | - Vijai K. Rai
- Department of Chemistry
- School of Physical Sciences
- Guru Ghasidas Vishwavidyalaya
- Bilaspur-495 009
- India
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84
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Siddaraju Y, Prabhu KR. Iodine-catalyzed sulfenylation of pyrazolones using dimethyl sulfoxide as an oxidant. Org Biomol Chem 2017; 15:5191-5196. [DOI: 10.1039/c7ob00561j] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iodine catalyzed sulfenylation of pyrazolones with a diverse range of heterocyclic thiols, heterocyclic thiones and disulfides has been described using dimethyl sulfoxide as an oxidant, which is an inexpensive, readily available and green oxidant.
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Affiliation(s)
- Yogesh Siddaraju
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
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85
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Chen K, Gao B, Shang Y, Du J, Gu Q, Wang J. I2-Catalyzed cross dehydrogenative coupling: rapid access to benzoxazinones and quinazolinones. Org Biomol Chem 2017; 15:8770-8779. [DOI: 10.1039/c7ob02038d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient and applicable I2-catalyzed intramolecular dehydrogenative C–O/C–N coupling reaction has been developed for the first time to provide both benzoxazinones and quinazolinones.
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Affiliation(s)
- Kaili Chen
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Biao Gao
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Yanguo Shang
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Jianyao Du
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
| | - Qinlan Gu
- Senior Vocational School
- China Pharmaceutical University
- Nanjing 211198
- P. R. China
| | - Jinxin Wang
- Jiangsu Key Laboratory of Drug Design & Optimization
- Department of Medicinal Chemistry
- China Pharmaceutical University
- Nanjing 210009
- P. R. China
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86
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Tang S, Gao X, Lei A. Electrocatalytic intramolecular oxidative annulation of N-aryl enamines into substituted indoles mediated by iodides. Chem Commun (Camb) 2017; 53:3354-3356. [DOI: 10.1039/c7cc00410a] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
An electrocatalytic reaction protocol is developed for achieving intramolecular dehydrogenative annulation ofN-aryl enamines.
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Affiliation(s)
- Shan Tang
- College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan 430072
- China
| | - Xinlong Gao
- College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan 430072
- China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan 430072
- China
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87
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Pandey K, Kaswan P, Saroj, Kumar A. Synthesis of 2-Carbonylimidazo[1,2-a]pyridinesviaIodine-mediated Intramolecular Cyclization of 2-Amino-N-propargylpyridinium Bromides. ChemistrySelect 2016. [DOI: 10.1002/slct.201601294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Khima Pandey
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 Rajasthan India
| | - Pinku Kaswan
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 Rajasthan India
| | - Saroj
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 Rajasthan India
| | - Anil Kumar
- Department of Chemistry; Birla Institute of Technology and Science, Pilani; Pilani 333031 Rajasthan India
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88
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Wang S, Liu C, Jia J, Zha C, Xie M, Zhang N. Synthesis of sulfonyl-substituted furans via copper-mediated annulation of acetylenic sulfones and activated methylenes. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.08.081] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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89
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Wei F, Cheng L, Huang H, Liu J, Wang D, Liu L. Intermolecular dearomative oxidative coupling of indoles with ketones and sulfonylhydrazines catalyzed by I2: synthesis of [2,3]-fused indoline tetrahydropyridazines. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0170-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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90
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Verma A, Kumar S. Selective Oxidative Decarbonylative Cleavage of Unstrained C(sp(3))-C(sp(2)) Bond: Synthesis of Substituted Benzoxazinones. Org Lett 2016; 18:4388-91. [PMID: 27549986 DOI: 10.1021/acs.orglett.6b02142] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A transition metal (TM)-free practical synthesis of biologically relevant benzoxazinones has been established via a selective oxidative decarbonylative cleavage of an unstrained C(sp(3))-C(sp(2)) bond employing iodine, sodium bicarbonate, and (t)butyl hydroperoxide in DMSO at 95 °C. Control experiments and Density Functional Theory (DFT) calculations suggest that the reaction involves a [1,5]H shift and extrusion of CO gas as the key steps. The extrusion of CO has also been established using PMA-PdCl2.
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Affiliation(s)
- Ajay Verma
- Department of Chemistry, IISER Bhopal , Bhopal By-pass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
| | - Sangit Kumar
- Department of Chemistry, IISER Bhopal , Bhopal By-pass Road, Bhauri, Bhopal, Madhya Pradesh, 462066, India
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91
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Kashparova VP, Klushin VA, Leontyeva DV, Smirnova NV, Chernyshev VM, Ananikov VP. Selective Synthesis of 2,5-Diformylfuran by Sustainable 4-acetamido-TEMPO/Halogen-Mediated Electrooxidation of 5-Hydroxymethylfurfural. Chem Asian J 2016; 11:2578-85. [DOI: 10.1002/asia.201600801] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Indexed: 01/20/2023]
Affiliation(s)
- Vera P. Kashparova
- Platov South-Russian State Polytechnic University (NPI); Novocherkassk 346428 Russia
| | - Victor A. Klushin
- Platov South-Russian State Polytechnic University (NPI); Novocherkassk 346428 Russia
| | - Daria V. Leontyeva
- Platov South-Russian State Polytechnic University (NPI); Novocherkassk 346428 Russia
| | - Nina V. Smirnova
- Platov South-Russian State Polytechnic University (NPI); Novocherkassk 346428 Russia
| | - Victor M. Chernyshev
- Platov South-Russian State Polytechnic University (NPI); Novocherkassk 346428 Russia
| | - Valentine P. Ananikov
- Platov South-Russian State Polytechnic University (NPI); Novocherkassk 346428 Russia
- Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninsky pr. 47 Moscow 119991 Russia
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92
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Li G, Huang L, Xu J, Sun W, Xie J, Hong L, Wang R. Sodium Iodide/Hydrogen Peroxide-Mediated Oxidation/Lactonization for the Construction of Spirocyclic Oxindole-Lactones. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600441] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guofeng Li
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Liwu Huang
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Jiecheng Xu
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Wangsheng Sun
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 People's Republic of China
| | - Junqiu Xie
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Liang Hong
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
| | - Rui Wang
- School of Pharmaceutical Sciences; Sun Yat-sen University; Guangzhou 510006 People's Republic of China
- Key Laboratory of Preclinical Study for New Drugs of Gansu Province; Lanzhou University; Lanzhou 730000 People's Republic of China
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93
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Tang S, Gao X, Lei A. Decarboxylative (4+1) Oxidative Annulation of Malonate Monoesters with 2-Vinylpyridine Derivatives. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600506] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Shan Tang
- College of Chemistry and Molecular Sciences; the Institute for Advanced Studies (IAS); Wuhan University; Wuhan 430072 People's Republic of China
| | - Xinlong Gao
- College of Chemistry and Molecular Sciences; the Institute for Advanced Studies (IAS); Wuhan University; Wuhan 430072 People's Republic of China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences; the Institute for Advanced Studies (IAS); Wuhan University; Wuhan 430072 People's Republic of China
- National Research Center for Carbohydrate Synthesis; Jiangxi Normal University; Nanchang 330022 People's Republic of China
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94
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Reddy NNK, Donthiri RR, Ravi C, Adimurthy S. Iodine-catalyzed [3+2] cyclization of 2-pyridylesters and chalcones: metal-free approach for the synthesis of substituted indolizines. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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95
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Zhong X, Lv J, Luo S. Oxidative Radical Addition–Cyclization of Sulfonyl Hydrazones with Simple Olefins by Binary Acid Catalysis. Org Lett 2016; 18:3150-3. [DOI: 10.1021/acs.orglett.6b01360] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xingren Zhong
- Beijing
National Laboratory for Molecular Sciences (BNLMS), Key Laboratory
of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jian Lv
- Beijing
National Laboratory for Molecular Sciences (BNLMS), Key Laboratory
of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Collaborative
Innovation
Center of Chemical and Engineering (Tianjin), Tianjin, 300071, China
| | - Sanzhong Luo
- Beijing
National Laboratory for Molecular Sciences (BNLMS), Key Laboratory
of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Collaborative
Innovation
Center of Chemical and Engineering (Tianjin), Tianjin, 300071, China
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96
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Huang Y, Li X, Yu Y, Zhu C, Wu W, Jiang H. Copper-Mediated [3 + 2] Oxidative Cyclization Reaction of N-Tosylhydrazones and β-Ketoesters: Synthesis of 2,3,5-Trisubstituted Furans. J Org Chem 2016; 81:5014-20. [DOI: 10.1021/acs.joc.6b00568] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Yubing Huang
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Xianwei Li
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yue Yu
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Chuanle Zhu
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Wanqing Wu
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- Key Laboratory
of Functional
Molecular Engineering of Guangdong Province, School of Chemistry and
Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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97
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Ko TY, Youn SW. Cooperative Indium(III)/Silver(I) System for Oxidative Coupling/Annulation of 1,3-Dicarbonyls and Styrenes: Construction of Five-Membered Heterocycles. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600280] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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98
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Li HL, Wang Y, Sun PP, Luo X, Shen Z, Deng WP. α,β-Double Electrophilic Addition of Allene-1,3-Dicarboxylic Esters for the Construction of Polysubstituted Furans by KI/tert-Butyl Hydroperoxide (TBHP)-Promoted Oxidative Annulation. Chemistry 2016; 22:9348-55. [DOI: 10.1002/chem.201600771] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 04/11/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Hong-Liang Li
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P.R. China
| | - Yu Wang
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P.R. China
| | - Pei-Pei Sun
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P.R. China
| | - Xiaoyan Luo
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P.R. China
| | - Zhenlu Shen
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 P.R. China
| | - Wei-Ping Deng
- Shanghai Key Laboratory of New Drug Design; School of Pharmacy; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P.R. China
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 P.R. China
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99
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Samanta S, Jana S, Mondal S, Monir K, Chandra SK, Hajra A. Switching the regioselectivity in the copper-catalyzed synthesis of iodoimidazo[1,2-a]pyridines. Org Biomol Chem 2016; 14:5073-8. [PMID: 27182027 DOI: 10.1039/c6ob00656f] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A unique copper-catalyzed binucleophilic switching of 2-aminopyridine has been developed for the regioselective synthesis of 2- and 3-iodoimidazo[1,2-a]pyridines using alkenes/alkynes as coupling partners in the presence of molecular iodine under aerobic reaction conditions. This method was also applied to the synthesis of 2-iodo-3-phenylbenzo[d]imidazo[2,1-b]thiazoles. This protocol offers an easy route towards the synthesis of 2,3-diarylimidazo[1,2-a]pyridines.
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Affiliation(s)
- Sadhanendu Samanta
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
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100
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Zhang MN, Zhao MN, Chen M, Ren ZH, Wang YY, Guan ZH. Copper-catalyzed radical coupling of 1,3-dicarbonyl compounds with terminal alkenes for the synthesis of tetracarbonyl compounds. Chem Commun (Camb) 2016; 52:6127-30. [PMID: 27071461 DOI: 10.1039/c6cc01942k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel and efficient copper-catalyzed radical cross-coupling of 1,3-dicarbonyl compounds with terminal alkenes for the synthesis of tetracarbonyl compounds with a quaternary carbon atom has been developed. Mechanistically, this transformation involves the construction of two C-C bonds and two C[double bond, length as m-dash]O bonds in a one-pot process. The reaction tolerates a wide range of functional groups and proceeds under mild conditions.
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Affiliation(s)
- Mei-Na Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science, Northwest University, Xi'an, 710127, P. R. China.
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