1
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Zhong LJ, Chen H, Shang X, Fan JH, Tang KW, Liu Y, Li JH. Photoredox Ring Opening 1,2-Alkylarylation of Alkenes with Sulfonium Salts Toward Thioether-Substituted Oxindoles. J Org Chem 2024; 89:8721-8733. [PMID: 38832808 DOI: 10.1021/acs.joc.4c00628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
A novel strategy for the difunctionalization of electron-deficient alkenes with aryl sulfonium salts to access remote sulfur-containing oxindole derivatives by using in situ-formed copper(I)-based complexes as a photoredox catalyst is presented. This method enables the generation of the C(sp3)-centered radicals through site selective cleavage of the C-S bond of aryl sulfonium salts under mild conditions. Moreover, the oxidation reactions of desired products provide a new strategy for the preparation of sulfoxide or sulfone-containing compounds. Importantly, this approach can be easily applied to late-stage modification of pharmaceuticals molecules.
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Affiliation(s)
- Long-Jin Zhong
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Hui Chen
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Xuan Shang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jian-Hong Fan
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Ke-Wen Tang
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Yu Liu
- Department of Chemistry and Chemical Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China
| | - Jin-Heng Li
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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2
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Rashid U, Bro-Jørgensen W, Harilal KB, Sreelakshmi PA, Mondal RR, Chittari Pisharam V, Parida KN, Geetharani K, Hamill JM, Kaliginedi V. Chemistry of the Au-Thiol Interface through the Lens of Single-Molecule Flicker Noise Measurements. J Am Chem Soc 2024; 146:9063-9073. [PMID: 38381861 PMCID: PMC10995995 DOI: 10.1021/jacs.3c14079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 02/23/2024]
Abstract
Chemistry of the Au-S interface at the nanoscale is one of the most complex systems to study, as the nature and strength of the Au-S bond change under different experimental conditions. In this study, using mechanically controlled break junction technique, we probed the conductance and analyzed Flicker noise for several aliphatic and aromatic thiol derivatives and thioethers. We demonstrate that Flicker noise can be used to unambiguously differentiate between stronger chemisorption (Au-SR) and weaker physisorption (Au-SRR') type interactions. The Flicker noise measurements indicate that the gold rearrangement in chemisorbed Au-SR junctions resembles that of the Au rearrangement in pure Au-Au metal contact breaking, which is independent of the molecular backbone structure and the resulting conductance. In contrast, thioethers showed the formation of a weaker physisorbed Au-SRR' type bond, and the Flicker noise measurement indicates the changes in the Au-anchoring group interface but not the Au-Au rearrangement like that in the Au-SR case. Additionally, by employing single-molecular conductance and Flicker noise analysis, we have probed the interfacial electric field-catalyzed ring-opening reaction of cyclic thioether under mild environmental conditions, which otherwise requires harsh chemical conditions for cleavage of the C-S bond. All of our conductance measurements are complemented by NEGF transport calculations. This study illustrates that the single-molecule conductance, together with the Flicker noise measurements can be used to tune and monitor chemical reactions at the single-molecule level.
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Affiliation(s)
- Umar Rashid
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - William Bro-Jørgensen
- Department
of Chemistry and Nano-Science Center, University
of Copenhagen, Universitetsparken
5, DK-2100 Copenhagen
Ø, Denmark
| | - KB Harilal
- School
of Chemistry, Indian Institute of Science
Education and Research (IISER), Thiruvananthapuram 695551, Kerala, India
| | - PA Sreelakshmi
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - Reetu Rani Mondal
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - Varun Chittari Pisharam
- School
of Chemistry, Indian Institute of Science
Education and Research (IISER), Thiruvananthapuram 695551, Kerala, India
| | - Keshaba N. Parida
- School
of Chemistry, Indian Institute of Science
Education and Research (IISER), Thiruvananthapuram 695551, Kerala, India
| | - K. Geetharani
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
| | - Joseph M. Hamill
- Department
of Chemistry and Nano-Science Center, University
of Copenhagen, Universitetsparken
5, DK-2100 Copenhagen
Ø, Denmark
| | - Veerabhadrarao Kaliginedi
- Department
of Inorganic and Physical Chemistry, Indian
Institute of Science, Bangalore 560012, India
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3
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Guo Y, Zhuang Z, Feng X, Ma Q, Li N, Jin C, Yoshida H, Tan J. Selective S-Arylation of Sulfenamides with Arynes: Access to Sulfilimines. Org Lett 2023; 25:7192-7197. [PMID: 37733632 DOI: 10.1021/acs.orglett.3c02785] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Sulfilimines, the aza analogues of sulfoxides, are of increasing interest in medicinal and agrochemical research programs. However, the development of efficient routes for their synthesis has remained relatively unexplored. In this study, we report a transition metal-free, selective S-arylation reaction between sulfenamides and arynes, enabling the facile preparation of structurally diverse sulfilimines under mild and redox-neutral conditions in good yields. The application value of our method was further demonstrated by scale-up synthesis, downstream derivatization, and robustness screen.
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Affiliation(s)
- Yifeng Guo
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Zhe Zhuang
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Xiaoying Feng
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Quanyu Ma
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Ningning Li
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Chaochao Jin
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Hiroto Yoshida
- Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Jiajing Tan
- College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
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4
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Chen J, Liu S, Su S, Fan R, Zhang R, Meng W, Tan J. Sulfonium-based precise alkyl transposition reactions. SCIENCE ADVANCES 2023; 9:eadi1370. [PMID: 37713480 PMCID: PMC10881050 DOI: 10.1126/sciadv.adi1370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 08/14/2023] [Indexed: 09/17/2023]
Abstract
S-adenosyl-L-methionine (SAM), a sulfonium-based cofactor, plays an important role in numerous biological processes as methyl donor. Inspired by the function of sulfonium motif in this nature's synthetic toolkit, we here present an aryne-activation strategy that the sulfonium intermediates in situ generated from thioethers display unique reactivity toward alkyl group transposition. Experimental and theoretical studies indicate that the reaction occurs in an intermolecular fashion where the TfO--incorporated [K(18-crown-6)] complex acts as a key promoter for this thermodynamically favored process. Next, a series of robust, easy-to-prepare sulfonium salts are designed and developed as electrophilic alkylation reagents accordingly. Both systems feature for broad scope, excellent selectivity, and simple operation. Moreover, we highlight the synthetic value through molecular editing and late-stage modification of complex scaffolds or even active pharmaceutical ingredients.
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Affiliation(s)
- Jian Chen
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Shilu Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Shuaisong Su
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Rong Fan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Ruirui Zhang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Wei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiajing Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
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5
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Komatsuda M, Yamaguchi J. Ring-Opening Fluorination of Carbo/Heterocycles and Aromatics: Construction of Complex and Diverse Fluorine-Containing Molecules. CHEM REC 2023; 23:e202200281. [PMID: 36604947 DOI: 10.1002/tcr.202200281] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/21/2022] [Indexed: 01/07/2023]
Abstract
Fluorine-containing molecules have attracted much attention in medicinal, agrochemical, and materials sciences because they offer unique physical and biological properties. Therefore, many efficient fluorination reactions have been developed over the years. Recent advancements in fluorination chemistry have expanded the range of substrates, and regioselectivity/stereoselectivity control has also been achieved. Ring-opening fluorination is an efficient method to construct complex fluorine-containing molecules with diversity, starting from simple cyclic compounds. This review aims to summarize developments in ring-opening fluorination, particularly with larger-sized cyclic compounds. Fluorine introduction and bond cleavage of cyclic compounds such as carbocycles, heterocycles, and aromatics provide efficient access to fluorine-containing compounds that are difficult to be synthesized by conventional methods.
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Affiliation(s)
- Masaaki Komatsuda
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo, 162-0041, Japan
| | - Junichiro Yamaguchi
- Department of Applied Chemistry, Waseda University, 513 Wasedatsurumakicho, Shinjuku, Tokyo, 162-0041, Japan
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6
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Fan R, Liu S, Yan Q, Wei Y, Wang J, Lan Y, Tan J. Empowering boronic acids as hydroxyl synthons for aryne induced three-component coupling reactions. Chem Sci 2023; 14:4278-4287. [PMID: 37123174 PMCID: PMC10132127 DOI: 10.1039/d3sc00072a] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/13/2023] [Indexed: 03/16/2023] Open
Abstract
Boronic acids have become one of the most prevalent classes of reagents in modern organic synthesis, displaying various reactivity profiles via C-B bond cleavage. Herein, we describe the utilization of a readily available boronic acid as an efficient surrogate of hydroxide upon activation via fluoride complexation. The hitherto unknown aryne induced ring-opening reaction of cyclic sulfides and three-component coupling of fluoro-azaarenes are developed to exemplify the application value. Different from metal hydroxides or water, this novel hydroxy source displays mild activation conditions, great functionality tolerance and structural tunability, which shall engender a new synthetic paradigm and in a broad context offer new blueprints for organoboron chemistry. Detailed computational studies also recognize the fluoride activation mode, provide in-depth insights into the unprecedented mechanistic pathway and elucidate the reactivity difference of ArB(OH) x F y complexes, which fully support the experimental data.
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Affiliation(s)
- Rong Fan
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Shihan Liu
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University Chongqing 400030 China
| | - Qiang Yan
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Yun Wei
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Jingwen Wang
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University Chongqing 400030 China
- ZhengZhou JiShu Institute of AI Science Zhengzhou 450000 China
| | - Jiajing Tan
- Department of Organic Chemistry, Beijing University of Chemical Technology Beijing 100029 China
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7
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Chen D, Yang C, Li M, Zhao G, Wang W, Wang X, Quan Z. Recent Progress on Arylation with Aryne through Three-Component Reaction. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202206006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
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8
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Anti-Markovnikov ring-opening of sulfonium salts with alkynes by visible light/copper catalysis. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1373-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Liu X, Shi F, Jin C, Liu B, Lei M, Tan J. Stereospecific synthesis of monofluoroalkenes and their deuterated analogues via Ag-catalyzed decarboxylation. J Catal 2022. [DOI: 10.1016/j.jcat.2022.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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10
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Khandelwal M, Pemawat G, Khangarot RK. Recent Developments in Nucleophilic Fluorination with Potassium Fluoride (KF): A Review. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Manisha Khandelwal
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
| | - Gangotri Pemawat
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
| | - Rama Kanwar Khangarot
- Mohanlal Sukhadia University Department of Chemistry UCOS, Durga Nursery Road 313001 Udaipur INDIA
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11
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Cui W, Li X, Guo G, Song X, Lv J, Yang D. Radial Type Ring Opening of Sulfonium Salts with Dichalcogenides by Visible Light and Copper Catalysis. Org Lett 2022; 24:5391-5396. [PMID: 35834182 DOI: 10.1021/acs.orglett.2c02078] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Herein, a copper-catalyzed, blue-light-induced free radical type ring opening of sulfonium salts with dichalcogenides has been initially developed. The developed method features an inexpensive copper catalyst and a broad substrate scope, affording practical access to alkyl chalcogenides in high yields. This reaction presents a novel ring-opening model of sulfonium salts, which breaks the limitation that only the nucleophilic ring-opening reaction could form C-heteroatom bonds and C-C bonds.
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Affiliation(s)
- Wenwen Cui
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Xufeng Li
- Zhejiang Wansheng Company, Ltd., Linhai, Zhejiang 317000, China
| | - Guoju Guo
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Xiuyan Song
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Jian Lv
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Daoshan Yang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
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12
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Liu J, Tang S, Zhao M, Huai J, Yu J, Zhao J, Li P. Reactivity of Vinyl Epoxides/Oxetanes/Cyclopropanes toward Arynes: Access to Functionalized Phenanthrenes. ACS OMEGA 2021; 6:35852-35865. [PMID: 34984314 PMCID: PMC8717566 DOI: 10.1021/acsomega.1c06166] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
The reactivity of vinyl epoxides/oxetanes/cyclopropanes toward arynes has been demonstrated under mild conditions to give the corresponding phenanthrenes in moderate to good yields. This transition-metal-free cascade process involves a series of Diels-Alder reaction, ring-opening aromatization, and ene reaction. Various functionalized phenanthrenes could be synthesized utilizing the versatile hydroxy group. Interestingly, vinyl epoxides/oxiranes experience preferentially the Diels-Alder reaction toward arynes over nucleophilic attack of epoxides/oxiranes.
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13
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Chen L, Xuchen X, Wang F, Yang Y, Deng G, Liu Y, Liang Y. Double C-S bond formation via multiple Csp 3-H bond cleavage: synthesis of 4-hydroxythiazoles from amides and elemental sulfur under metal-free conditions. Org Biomol Chem 2021; 19:10068-10072. [PMID: 34762083 DOI: 10.1039/d1ob01989a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A novel and efficient approach for the synthesis of 4-hydroxythiazoles from amides and elemental sulfur has been developed. In the presence of P2O5, DMSO and HMPA, this metal-free protocol proceeds smoothly and tolerates a spectrum of functional groups. Furthermore, this strategy involves the process of double Csp3-S bond formation through the cleavage of multiple Csp3-H bonds for the first time.
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Affiliation(s)
- Liang Chen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China. .,Huaihua Normal College, Huaihua 418008, China
| | - Xinyu Xuchen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Fei Wang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China.
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China. .,Ministry of Education Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base), College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, P. R. China
| | - Yilin Liu
- Institute of Organic Synthesis, College of Chemistry and Materials Engineering, Huaihua University, Huaihua 418008, China.
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China.
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14
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Malarney KP, Kc S, Schmidt VA. Recent strategies used in the synthesis of saturated four-membered heterocycles. Org Biomol Chem 2021; 19:8425-8441. [PMID: 34546272 DOI: 10.1039/d1ob00988e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The importance and prevalance of O-, N-, and S-atom containing saturated four-membered ring motifs in biologically active molecules and potential therapeutics continues to drive efforts in their efficient synthetic preparation. In this review, general and recent strategies for the synthesis of these heterocycles are presented. Due to the limited potential bond disconnections, retrosynthetic strategies are broadly limited to cyclizations and cycloadditions. Nonetheless, diverse approaches for accessing cyclization precursors have been developed, ranging from nucleophilic substitution to C-H functionalization. Innovative methods for substrate activation have been developed for cycloadditions under photochemical and thermal conditions. Advances in accessing oxetanes, azetidines, and thietanes remain active areas of research with continued breakthroughs anticipated to enable future applications.
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Affiliation(s)
- Kien P Malarney
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
| | - Shekhar Kc
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
| | - Valerie A Schmidt
- Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA, 92071, USA.
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15
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Liu X, Liu B, Shi Z, Tan C, Fan R, Li Z, Tan J. Hf(OTf) 4-Catalyzed 1,6-Conjugate Addition of 2-Alkyl-azaarenes to para-Quinone Methides. J Org Chem 2021; 86:3615-3624. [PMID: 33523665 DOI: 10.1021/acs.joc.0c02982] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein we reported a Hf(OTf)4-catalyzed carbon-carbon bond formation reaction between 2-alkyl-azaarenes and para-quinone methides (p-QMs). This 1,6-conjugate addition protocol offered rapid access to a large array of triarylethane products in good yields. The catalyst loading could be reduced to 1 mol %. Studies pertinent to scale-up reaction and product derivatization were also presented.
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Affiliation(s)
- Xinyuan Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Binbin Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhan Shi
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Chen Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Rong Fan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zhi Li
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, P. R. China
| | - Jiajing Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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16
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Affiliation(s)
- Jiarong Shi
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Lianggui Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
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17
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Neal EA, Werling AYR, Jones CR. A simple Hückel model-driven strategy to overcome electronic barriers to retro-Brook silylation relevant to aryne and bisaryne precursor synthesis. Chem Commun (Camb) 2021; 57:1663-1666. [PMID: 33463642 DOI: 10.1039/d0cc08283j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ortho-Silylaryl triflate precursors (oSATs) have been responsible for many recent advances in aryne chemistry and are most commonly accessed from the corresponding 2-bromophenol. A retro-Brook O- to C-silyl transfer is a key step in this synthesis but not all aromatic species are amenable to the transformation, with no functionalized bisbenzyne oSATs reported. Simple Hückel models are presented which show that the calculated aromaticity at the brominated position is an accurate predictor of successful retro-Brook reaction, validated synthetically by a new success and a predicted failure. From this, the synthesis of a novel difunctionalized bisaryne precursor has been tested, requiring different approaches to install the two C-silyl groups. The first successful use of a disubstituted o-silylaryl sulfonate bisbenzyne precursor in Diels-Alder reactions is then shown.
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Affiliation(s)
- Edward A Neal
- School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London, UK.
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18
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Fan R, Tan C, Liu Y, Wei Y, Zhao X, Liu X, Tan J, Yoshida H. A leap forward in sulfonium salt and sulfur ylide chemistry. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.06.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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19
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An Y, Zhang F, Du G, Cai Z, He L. Construction of 6 H-benzo[ c]thiochromenes via a tandem reaction of arynes with thionoesters. Org Chem Front 2021. [DOI: 10.1039/d1qo01177d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A mild and transition-metal free method has been proposed for the synthesis of 6H-benzo[c]thiochromenes via the tandem reactions of arynes with thionoesters.
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Affiliation(s)
- Yi An
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University Xinjiang Uygur Autonomous Region, 832000, People's Republic of China
| | - Fang Zhang
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University Xinjiang Uygur Autonomous Region, 832000, People's Republic of China
| | - Guangfen Du
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University Xinjiang Uygur Autonomous Region, 832000, People's Republic of China
| | - Zhihua Cai
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University Xinjiang Uygur Autonomous Region, 832000, People's Republic of China
| | - Lin He
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University Xinjiang Uygur Autonomous Region, 832000, People's Republic of China
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20
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Azulenesulfonium and azulenebis(sulfonium) salts: Formation by interrupted Pummerer reaction and subsequent derivatisation by nucleophiles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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21
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Matsuzawa T, Hosoya T, Yoshida S. One-step synthesis of benzo[ b]thiophenes by aryne reaction with alkynyl sulfides. Chem Sci 2020; 11:9691-9696. [PMID: 34094234 PMCID: PMC8162113 DOI: 10.1039/d0sc04450d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 08/26/2020] [Indexed: 12/15/2022] Open
Abstract
An aryne reaction with alkynyl sulfides affording benzo[b]thiophenes is disclosed. A wide range of 3-substituted benzothiophenes were synthesized from easily available o-silylaryl triflates and alkynyl sulfides in a one-step intermolecular manner. The synthesis of diverse multisubstituted benzothiophene derivatives involving a pentacyclic compound was achieved by virtue of the good functional group tolerance and versatile C2 functionalizations.
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Affiliation(s)
- Tsubasa Matsuzawa
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU) 2-3-10 Kanda-Surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU) 2-3-10 Kanda-Surugadai Chiyoda-ku Tokyo 101-0062 Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU) 2-3-10 Kanda-Surugadai Chiyoda-ku Tokyo 101-0062 Japan
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22
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Saputra A, Fan R, Yao T, Chen J, Tan J. Synthesis of 2‐(Arylthio)indolenines via Chemoselective Arylation of Thio‐Oxindoles with Arynes. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000308] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Adi Saputra
- Department of Organic Chemistry, College of Chemistry, BeijingUniversity of Chemical Technology Beijing 100029 People's Republic of China
| | - Rong Fan
- Department of Organic Chemistry, College of Chemistry, BeijingUniversity of Chemical Technology Beijing 100029 People's Republic of China
| | - Tuanli Yao
- College of Chemistry and Chemical EngineeringShaanxi University of Science and Technology 6 Xuefu Road, Weiyang District Xi'an, Shaanxi 710021 People's Republic of China
| | - Jian Chen
- Department of Organic Chemistry, College of Chemistry, BeijingUniversity of Chemical Technology Beijing 100029 People's Republic of China
| | - Jiajing Tan
- Department of Organic Chemistry, College of Chemistry, BeijingUniversity of Chemical Technology Beijing 100029 People's Republic of China
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23
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Okuma K, Qu Y, Suetome A, Nagahora N. Reaction of ketone hydrazones with TeCl 4: isolation and reactions of novel divinyl telluride. Org Biomol Chem 2020; 18:4583-4589. [DOI: 10.1039/d0ob00782j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of acetophenone hydrazones with TeCl4 in the presence of DBU gave divinyl tellurides. The reaction of divinyl tellurides with bromine or benzyne afforded the corresponding tellurium dibromides or (E)-2-alkenyl tellurides.
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Affiliation(s)
- Kentaro Okuma
- Department of Chemistry
- Fukuoka University
- Fukuoka 814-0180
- Japan
| | - Yuxuan Qu
- Department of Chemistry
- Fukuoka University
- Fukuoka 814-0180
- Japan
| | - Aoi Suetome
- Department of Chemistry
- Fukuoka University
- Fukuoka 814-0180
- Japan
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24
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Rahman M, Bagdi AK, Kopchuk DS, Kovalev IS, Zyryanov GV, Chupakhin ON, Majee A, Hajra A. Recent advances in the synthesis of fluorinated compounds via an aryne intermediate. Org Biomol Chem 2020; 18:9562-9582. [DOI: 10.1039/d0ob01638a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this review, the usefulness of aryne intermediates for the synthesis of various fluorinated organic compounds during the last decade has been demonstrated.
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Affiliation(s)
- Matiur Rahman
- Department of Organic and Biomolecular Chemistry
- Chemical Engineering Institute
- Ural Federal University
- Yekaterinburg
- Russian Federation
| | | | - Dmitry S. Kopchuk
- Department of Organic and Biomolecular Chemistry
- Chemical Engineering Institute
- Ural Federal University
- Yekaterinburg
- Russian Federation
| | - Igor S. Kovalev
- Department of Organic and Biomolecular Chemistry
- Chemical Engineering Institute
- Ural Federal University
- Yekaterinburg
- Russian Federation
| | - Grigory V. Zyryanov
- Department of Organic and Biomolecular Chemistry
- Chemical Engineering Institute
- Ural Federal University
- Yekaterinburg
- Russian Federation
| | - Oleg N. Chupakhin
- Department of Organic and Biomolecular Chemistry
- Chemical Engineering Institute
- Ural Federal University
- Yekaterinburg
- Russian Federation
| | - Adinath Majee
- Department of Chemistry
- Visva-Bharati (A Central University)
- Santiniketan 731235
- India
| | - Alakananda Hajra
- Department of Chemistry
- Visva-Bharati (A Central University)
- Santiniketan 731235
- India
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25
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Liu L, Jiang P, Liu Y, Du H, Tan J. Direct radical alkylation and acylation of 2H-indazoles using substituted Hantzsch esters as radical reservoirs. Org Chem Front 2020. [DOI: 10.1039/d0qo00507j] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A platform approach for the direct synthesis of 3-substituted 2H-indazole derivatives has been developed using a Ag(i)/Na2S2O8 system.
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Affiliation(s)
- Li Liu
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology (BUCT)
- Beijing 100029
- China
| | - Pengxing Jiang
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology (BUCT)
- Beijing 100029
- China
| | - Yongguo Liu
- Beijing Key Laboratory of Flavour Chemistry
- Beijing Technology and Business University (BTBU)
- Beijing 100048
- China
| | - Hongguang Du
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology (BUCT)
- Beijing 100029
- China
| | - Jiajing Tan
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology (BUCT)
- Beijing 100029
- China
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26
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Ding W, Yu A, Zhang L, Meng X. Construction of Eight-Membered Cyclic Diaryl Sulfides via Domino Reaction of Arynes with Thioaurone Analogues and DFT Study on the Reaction Mechanism. Org Lett 2019; 21:9014-9018. [DOI: 10.1021/acs.orglett.9b03417] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wenhuan Ding
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Aimin Yu
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Lei Zhang
- Tianjin Engineering Technology Center of Chemical Wastewater Source Reduction and Recycling, School of Science, Tianjin Chengjian University, Tianjin 300384, P. R. China
- College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Xiangtai Meng
- Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
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27
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Singh P, Cairns AG, Adolfsson DE, Ådén J, Sauer UH, Almqvist F. Synthesis of Densely Functionalized N-Alkenyl 2-Pyridones via Benzyne-Induced Ring Opening of Thiazolino-Fused 2-Pyridones. Org Lett 2019; 21:6946-6950. [PMID: 31419146 DOI: 10.1021/acs.orglett.9b02549] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the synthesis of 6-arylthio-substituted-N-alkenyl 2-pyridones by ring opening of bicyclic thiazolino-2-pyridones with arynes. Varied functionalization was used to investigate scope and substituent influences on reactivity. Selected conditions favor thioether ring opening over [4 + 2] cycloaddition and an unusual aryne incorporating ring expansion. Deuterium labeling was used to clarify observed reactivity. Using the knowledge, we produced drug-like molecules with complex substitution patterns and show how thioether ring opening can be used on scaffolds with competing reactivities.
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Affiliation(s)
- Pardeep Singh
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Andrew G Cairns
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Dan E Adolfsson
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Jörgen Ådén
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
| | - Uwe H Sauer
- Department of Chemistry, Umeå University, 90187 Umeå, Sweden
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28
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Liu L, Tan C, Fan R, Wang Z, Du H, Xu K, Tan J. I2/TBHP-Mediated tandem cyclization and oxidation reaction: Facile access to 2-substituted thiazoles and benzothiazoles. Org Biomol Chem 2019; 17:252-256. [DOI: 10.1039/c8ob02826e] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The efficient synthesis of 2-substituted thiazoles and benzothiazoles has been accomplished employing readily available cysteine esters and 2-aminobenzenethiols as N and S sources.
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Affiliation(s)
- Li Liu
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Chen Tan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Rong Fan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Zihan Wang
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Hongguang Du
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Kun Xu
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang
- P. R. China
| | - Jiajing Tan
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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29
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30
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Tan J, Liu B, Su S. Aryne triggered dearomatization reaction of isoquinolines and quinolines with chloroform. Org Chem Front 2018. [DOI: 10.1039/c8qo00838h] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct dearomatization reaction of isoquinolines and quinolines with chloroform has been accomplished through in situ electrophilic aryne activation and nucleophile formation.
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Affiliation(s)
- Jiajing Tan
- Department of Organic Chemistry
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Binbin Liu
- Department of Organic Chemistry
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Shuaisong Su
- Department of Organic Chemistry
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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