1
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Ding H, Shi S, Hou Y, Cui W, Sun R, Lv Y, Yue H, Wei W, Yi D. Visible-Light-Promoted Cascade Coupling of 2-Isocyanonaphthalenes with Elemental Sulfur and Amines to Construct Naphtho[2,1-d]thiazol-2-Amines. Chemistry 2024; 30:e202400719. [PMID: 38462510 DOI: 10.1002/chem.202400719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 03/05/2024] [Accepted: 03/05/2024] [Indexed: 03/12/2024]
Abstract
A visible-light-induced strategy has been explored for the synthesis of naphtho[2,1-d]thiazol-2-amines through ortho-C-H sulfuration of 2-isocyanonaphthalenes with elemental sulfur and amines under external photocatalyst-free conditions. This three-component reaction, which utilizes elemental sulfur as the odorless sulfur source, molecular oxygen as the clean oxidant, and visible light as the clean energy source, provides a mild and efficient approach to construct a series of naphtho[2,1-d]thiazol-2-amines. Preliminary mechanistic studies indicated that visible-light-promoted photoexcitation of reaction intermediates consisting of thioureas and DBU might be involved in this transformation.
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Affiliation(s)
- Hongyu Ding
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, Department School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, P.R.China
| | - Siyu Shi
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, Department School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, P.R.China
| | - Yanan Hou
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, Department School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, P.R.China
| | - Wenxiu Cui
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, Department School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, P.R.China
| | - Rong Sun
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, Department School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, P.R.China
| | - Yufen Lv
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, Department School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, P.R.China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai, 810008, P.R.China
| | - Wei Wei
- Key Laboratory of Catalytic Conversion and Clean Energy in Universities of Shandong Province, Department School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, Shandong, P.R.China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research, CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai, 810008, P.R.China
| | - Dong Yi
- Green Pharmaceutical Technology Key Laboratory of Luzhou City, School of Pharmacy, Southwest Medical University, Luzhou, 646000, Sichuan, P. R. China
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2
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Huynh TN, Ong KTN, Dinh PT, Nguyen AT, Nguyen TT. Elemental Sulfur Promoted Cyclization of Aryl Hydrazones and Aryl Isothiocyanates Yielding 2-Imino-1,3,4-thiadiazoles. J Org Chem 2024; 89:3202-3210. [PMID: 38329896 DOI: 10.1021/acs.joc.3c02675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
We report a method for using elemental sulfur to facilitate the cyclization of aryl hydrazones and aryl isothiocyanates, affording biorelated 2-imino-1,3,4-thiadiazoles. Reactions progressed in the presence of elemental sulfur, N-methylmorpholine base, and DMSO solvent, while were tolerant of a wide range of functionalities including halogen, nitro, cyano, methylsulfonyl, and heterocyclic groups. The method appears to offer a general pathway for using simple, cheap, and stable reagents to afford triaryl-substituted 2-imino-1,3,4-thiadiazoles under relatively mild conditions.
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Affiliation(s)
- Tan N Huynh
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 84, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 84, Vietnam
| | - Khanh T N Ong
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 84, Vietnam
- VNU-HCM Key Laboratory for Functional Organic Materials, Ho Chi Minh City 84, Vietnam
| | - Phuong T Dinh
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 84, Vietnam
- VNU-HCM Key Laboratory for Functional Organic Materials, Ho Chi Minh City 84, Vietnam
| | - Anh T Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 84, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 84, Vietnam
| | - Tung T Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 84, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City 84, Vietnam
- VNU-HCM Key Laboratory for Functional Organic Materials, Ho Chi Minh City 84, Vietnam
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3
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Zhong B, Chen F, Ge Y, Liu D. Developing a fast and catalyst-free protocol to form C=N double bond with high functional group tolerance. ROYAL SOCIETY OPEN SCIENCE 2023; 10:231263. [PMID: 37800155 PMCID: PMC10548102 DOI: 10.1098/rsos.231263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 09/12/2023] [Indexed: 10/07/2023]
Abstract
The carbon-nitrogen double bond (C=N) is a fundamentally important functional group in organic chemistry. This is largely due to the fact that C=N acts as electrophilic synthon to give nitrogen-containing compounds. Here, we report the condensation of primary amine or hydrazine with very electron-deficient aldehyde to form C=N bond in the absence of any catalysts (metals and acids). The protocol performs at room temperature and applies water as co-solvent. Two hundred examples are presented here. With its intrinsic advantages of wide substrate scopes, excellent efficiency (high yields and short reaction time), operational simplicity, mild condition (room temperature as reaction temperature, no catalysts, no additions, water as co-solvent and opening to air) and available starting materials, the protocol can be compatible with various drugs, prodrugs, dyes and pharmacophores containing primary amino group. In addition, we also successfully apply this protocol to rapidly synthesize the core scaffolds of bioactive molecules.
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Affiliation(s)
- Bin Zhong
- Heifei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, People's Republic of China
| | - Feng Chen
- Heifei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, People's Republic of China
| | - Yushu Ge
- Heifei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, People's Republic of China
| | - Dan Liu
- Heifei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230027, People's Republic of China
- The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, People's Republic of China
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4
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Long L, Li X, Tu M, Zhang Y, Qiao L, Luo W, Chen Z. Hypervalent iodine( iii) promoted C–H/C–H amination/annulation tandem reactions: synthesis of benzimidazoles from simple anilines and aldehydes. Org Chem Front 2023. [DOI: 10.1039/d2qo01644c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel hypervalent iodine mediated cascade transformation of anilines and aldehydes to benzimidazoles was developed.
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Affiliation(s)
- Lipeng Long
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Xin Li
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Mengshi Tu
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Yekun Zhang
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Liang Qiao
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Wenjun Luo
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
| | - Zhengwang Chen
- Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province, Gannan Normal University, Ganzhou, 341000, China
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5
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Zandieh H, Mokhtari J, Larijani K. Cu-MOF as Reusable Catalyst for the One-Pot Three-Component Synthesis of 2-Substituted Benzothiazoles Using 2-Iodoaniline, Aldehydes and Elemental Sulfur. Catal Letters 2022. [DOI: 10.1007/s10562-022-04250-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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6
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Cui HL. Recent Advances in DMSO-Based Direct Synthesis of Heterocycles. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238480. [PMID: 36500564 PMCID: PMC9738701 DOI: 10.3390/molecules27238480] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/17/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Besides serving as a low-toxicity, inexpensive and easily accessible solvent, dimethyl sulfoxide (DMSO) has also been extensively used as a versatile reagent for the synthesis of functionalized molecules. Dimethyl sulfoxide can not only be utilized as a carbon source, a sulfur source and an oxygen source, but also be employed as a crucial oxidant enabling various transformations. The past decade has witnessed a large number of impressive achievements on the direct synthesis of heterocycles as well as modifications of heterocyclic compounds by applying DMSO as a reagent. This review summarized the DMSO-based direct heterocycle constructions from 2012 to 2022.
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Affiliation(s)
- Hai-Lei Cui
- Laboratory of Asymmetric Synthesis, Chongqing University of Arts and Sciences, 319 Honghe Ave., Yongchuan, Chongqing 402160, China
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7
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Farajpour B, Alizadeh A. Base-Promoted Reaction of 4-Chloro-3-vinyl Coumarins, Phenacylpyridinium Bromides, and Elemental Sulfur: A Designed Approach to Thiopyrano[4,3- c]chromen-5(1 H)-ones. J Org Chem 2022; 87:13837-13844. [PMID: 36198088 DOI: 10.1021/acs.joc.2c01542] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A designed synthesis of thiopyrano[4,3-c]chromen-5(1H)-ones was developed based on a base-promoted three-component reaction between 4-chloro-3-vinyl coumarins, phenacylpyridinium bromides, and elemental sulfur. Readily available starting materials, mild conditions, chemoselectivity, operational simplicity, and synthetically useful yields are some highlighted advantages of these transformations.
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Affiliation(s)
- Behnaz Farajpour
- Department of Chemistry, Tarbiat Modares University, Tehran14115-175, Iran
| | - Abdolali Alizadeh
- Department of Chemistry, Tarbiat Modares University, Tehran14115-175, Iran
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8
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Shainyan BA, Zhilitskaya LV, Yarosh NO. Synthetic Approaches to Biologically Active C-2-Substituted Benzothiazoles. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082598. [PMID: 35458794 PMCID: PMC9027766 DOI: 10.3390/molecules27082598] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/01/2022] [Accepted: 04/12/2022] [Indexed: 12/15/2022]
Abstract
Numerous benzothiazole derivatives are used in organic synthesis, in various industrial and consumer products, and in drugs, with a wide spectrum of biological activity. As the properties of the benzothiazole moiety are strongly affected by the nature and position of substitutions, in this review, covering the literature from 2016, we focus on C-2-substituted benzothiazoles, including the methods of their synthesis, structural modification, reaction mechanisms, and possible pharmacological activity. The synthetic approaches to these heterocycles include both traditional multistep reactions and one-pot atom economy processes using green chemistry principles and easily available reagents. Special attention is paid to the methods of the thiazole ring closure and chemical modification by the introduction of pharmacophore groups.
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9
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Synthesis of benzisothiazoles by a three-component reaction using elemental sulfur and ammonium as heteroatom components under transition metal-free conditions. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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10
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Xiao L, Liu G, Ren P, Wu T, Lu Y, Kong J. Elemental Sulfur: An Excellent Sulfur-Source for Synthesis of Sulfur-Containing Heterocyclics. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Wang H, Yan R. Iron‐Catalyzed One‐Step Synthesis of Isothiazolone/1,2‐Selenazolone Derivatives via [3+1+1] Annulation of Cyclopropenones, Anilines, and Elemental Chalcogens. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hongchen Wang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000, Gansu People's Republic of China
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000, Gansu People's Republic of China
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12
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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: 1.0] [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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13
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Nandy A, Sekar G. KO tBu-Promoted Halogen-Bond-Assisted Intramolecular C-S Cross-Coupling of o-Iodothioanilides for the Synthesis of 2-Substituted Benzothiazoles. J Org Chem 2021; 86:15825-15834. [PMID: 34644084 DOI: 10.1021/acs.joc.1c02023] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An efficacious and mild KOtBu-promoted intramolecular C-S cross-coupling of ortho-iodothioanilides in conjunction with a catalytic quantity of phenanthroline as an additive has been described for the convenient synthesis of 2-substituted benzothiazoles. The methodology is suitable for attaining a wide variety of 2-alkyl- and 2-aryl-substituted benzothiazoles. Single-crystal XRD, DFT calculations, NMR, and UV studies suggest that halogen bonds between the units of ortho-iodothioanilides may assist in the electron transfer process.
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Affiliation(s)
- Anuradha Nandy
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, India
| | - Govindasamy Sekar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600 036, India
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14
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Abdel-Latif E, Khatab TK, Fekri A, Khalifa ME. Synthesis of New Binary Thiazole-Based Heterocycles and Their Molecular Docking Study as COVID-19 Main Protease (M pro) Inhibitors. RUSS J GEN CHEM+ 2021; 91:1767-1773. [PMID: 34720568 PMCID: PMC8549589 DOI: 10.1134/s1070363221090231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/14/2021] [Accepted: 06/14/2021] [Indexed: 11/22/2022]
Abstract
Isolated polynuclear binary heterocyclic compounds containing thiazole building block combined with benzofuran, pyrrole, thiazole, or thiophene via carboxamide and/or secondary amine as a junction are presented. The synthetic strategy of those is based on utilization of 2-chloroacetamido-4-phenylthiazole in the synthesis of binary heterocyclic compounds by cyclocondensation with salicylic aldehyde, acetonitrile derivatives, ammonium thiocyanate, 3-mercaptoacrylonitrile derivatives, and/or 3-mercaptoacrylate derivatives. The prepared binary thiazole-based heterocycles have been studied as protease (Mpro) inhibitors by molecular docking for visualization of their orientation and interactions with COVID-19 units using hydroxychloroquine as a reference molecule.
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Affiliation(s)
- E Abdel-Latif
- Department of Chemistry, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
| | - T K Khatab
- Department of Chemistry, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
| | - A Fekri
- Department of Chemistry, Faculty of Science, Mansoura University, 35516 Mansoura, Egypt
| | - M E Khalifa
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, 21944 Taif, Saudi Arabia
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15
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Xia Y, Huang H, Hu W, Deng GJ. NH 4I-promoted oxidative formation of benzothiazoles and thiazoles from arylacetic acids and phenylalanines with elemental sulfur. Org Biomol Chem 2021; 19:5108-5113. [PMID: 34009226 DOI: 10.1039/d1ob00671a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A NH4I/K3PO4-based catalytic system has been established to enable oxidative formation of thiazole compounds from arylacetic acids and phenylalanines with elemental sulfur. While the three-component reaction of anilines or β-naphthylamines with arylacetic acids and elemental sulfur affords benzo[2,1-d]thiazoles and naphtho[2,1-d]thiazoles, the annulation of phenylalanines with elemental sulfur produces 2-benzyl and 2-benzoylthiazoles. This work well complements previous three-component annulations of benzothiazoles from other coupling partners.
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Affiliation(s)
- Yujia Xia
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Wei Hu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China.
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16
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Mei R, Xiong F, Yang C, Zhao J. Salicylic Acid‐Promoted Three‐Component Annulation of Benzimidazoles, Aryl Nitroalkenes and Elemental Sulfur. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ruhuai Mei
- Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Feng Xiong
- Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Chenrui Yang
- Key Laboratory of Coarse Cereal Processing Ministry of Agriculture and Rural Affairs Chengdu University Chengdu 610106 People's Republic of China
| | - Jinwu Zhao
- School of Pharmacy Guangdong Medical University Dongguan 523808 People's Republic of China
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17
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Wang H, Wu Q, Zhang JD, Li HY, Li HX. Photocatalyst- and Transition-Metal-Free Visible-Light-Promoted Intramolecular C(sp 2)-S Formation. Org Lett 2021; 23:2078-2083. [PMID: 33635082 DOI: 10.1021/acs.orglett.1c00235] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A photocatalyst- and transition-metal-free visible-light-induced cyclization of ortho-halothiobenzanilides has been developed. Upon irradiation with visible light, substrates undergo dehalogenative cyclization to 2-aryl benzothiazoles with high efficiency and selectivity. This photocyclization exhibits a high tolerance to various functional groups, is applicable for the synthesis of 2-alkyl benzothiazoles, and is easy to set up for gram-scale reaction.
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Affiliation(s)
- Hao Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Qi Wu
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jian-Dong Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Hai-Yan Li
- Analysis and Testing Center, Soochow University, Suzhou 215123, China
| | - Hong-Xi Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
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18
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I
2
‐Promoted Direct C−H Sulfenylation of Isoquinolin‐1(2
H
)‐ones with Sulfonyl Chlorides. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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19
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Li C, Tseng Y, Hsu T, Chang C, Hong F. Formations of aryl or pyrrole ring via palladium‐catalyzed CH functionalization on amido‐substituted quinones in the presence of amines or phosphines. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cang‐Sian Li
- Department of Chemistry National Chung Hsing University Taichung Taiwan
| | - Yi‐Ping Tseng
- Department of Chemistry National Chung Hsing University Taichung Taiwan
| | - Ting‐Hsuan Hsu
- Department of Chemistry National Chung Hsing University Taichung Taiwan
| | - Chiao‐Yun Chang
- Department of Chemistry National Chung Hsing University Taichung Taiwan
| | - Fung‐E Hong
- Department of Chemistry National Chung Hsing University Taichung Taiwan
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20
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Ma X, Song Q. Recent progress on selective deconstructive modes of halodifluoromethyl and trifluoromethyl-containing reagents. Chem Soc Rev 2020; 49:9197-9219. [PMID: 33146196 DOI: 10.1039/d0cs00604a] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Halodifluoromethyl and trifluoromethyl-containing compounds are widely employed in organic chemistry, pharmaceuticals and materials science. Therefore, their applications and transformations have received significant attention during the past few decades. The single, double, triple and quadruple cleavage of halodifluoromethyl compounds and various deconstructive modes of trifluoromethyl-containing compounds could generate a variety of synthons to prepare more valuable products. Herein, we summarize the most significant achievements in this field with an intriguing focus on results from the last decade.
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Affiliation(s)
- Xingxing Ma
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University Fuzhou, Fujian, 350108, China
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21
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Yue Y, Shao H, Wang Z, Wang K, Wang L, Zhuo K, Liu J. Elemental-Sulfur-Incorporated Cyclizations of Pyrrolidines Leading to Thienopyrroles. J Org Chem 2020; 85:11265-11279. [PMID: 32701277 DOI: 10.1021/acs.joc.0c01363] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report, herein, the synthesis of thieno[3,2-b]pyrroles from the direct oxidative [4 + 1] cyclization of 2-alkynyl pyrrolidines with elemental sulfur. This transformation likely originates from electrophilic attack at the β-position of pyrrolidine followed by an intramolecular thienannulation to deliver the desired product. Mechanistic investigation suggests that the present reaction involves the formation of dihydrothieno[3,2-b]pyrrole as an intermediate.
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Affiliation(s)
- Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Huibin Shao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Zhixian Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Ke Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Le Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
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22
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Deng GJ, Huang H, Liu S. Recent Advances in Sulfur-Containing Heterocycle Formation via Direct C–H Sulfuration with Elemental Sulfur. Synlett 2020. [DOI: 10.1055/s-0040-1707217] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The synthesis of sulfur heterocycles via the construction of C–S bonds has received considerable attention due to their biological value and extensive pharmaceutical application. While diverse sulfurating agents have been developed over the past few decades, in this regard, elemental sulfur, with advantages of low toxicity, odorless nature and chemical stability, has great potential for the construction of diverse sulfur heterocycles through its direct incorporation into the target molecules in a concise way. Direct functionalization of inert C–H bonds can shorten the number of reaction steps and minimize the amount of waste formed. Hence, heteroannulations via direct C–H sulfuration is considered to be an attractive strategy for the synthesis of sulfur heterocycles. In the last few years, a vast array of concise systems have been reported for the synthesis of some valuable sulfur heterocycles such as thiophenes, thienoindoles, thienothiazoles, thiazoles, benzothiazoles, and thiadiazoles through direct C–H sulfuration/annulations with elemental sulfur. These are discussed in detail in this review.1 Introduction2 Thiophenes3 Thienoindoles4 Thienothiazoles5 Other Fused Thiophenes6 Thiazoles7 Benzothiazoles8 Thiadiazoles9 Others10 Summary and Outlook
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Affiliation(s)
- Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University
| | - Saiwen Liu
- College of Materials and Chemical Engineering, Hunan City University
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University
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23
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Nguyen TB. Recent Advances in the Synthesis of Heterocycles via Reactions Involving Elemental Sulfur. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000535] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Thanh Binh Nguyen
- Institut de Chimie des Substances NaturellesCNRS UPR 2301Université Paris-SudUniversité Paris-Saclay 1, avenue de la Terrasse Gif-sur-Yvette 91198 France
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24
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Ho TH, Le HHK, To TA, Nguyen TT, Phan NTS. Functionalization of Primary C–H Bonds in Picolines toward Pyridylthioamides. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Tuan H. Ho
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Ha H. K. Le
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Tuong A. To
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Tung T. Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
| | - Nam T. S. Phan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc District, Ho Chi Minh City, Vietnam
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25
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Zhu X, Zhou F, Yang Y, Deng G, Liang Y. Catalyst- and Additive-Free Method for the Synthesis of 2-Substituted Benzothiazoles from Aromatic Amines, Aliphatic Amines, and Elemental Sulfur. ACS OMEGA 2020; 5:13136-13147. [PMID: 32548500 PMCID: PMC7288589 DOI: 10.1021/acsomega.0c01150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
Under catalyst- and additive-free conditions, a novel, convenient, environmentally friendly method was developed for the synthesis of 2-substituted benzothiazoles via the three-component one pot reaction from aromatic amines, aliphatic amines, and elemental sulfur. The reaction achieves double C-S and one C-N bond formations via cleavage of two C-N bonds and multiple C-H bonds. Furthermore, the mechanism research shows that DMSO acts as an oxidant in the cyclization reaction.
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Affiliation(s)
- Xiaoming Zhu
- National
and 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, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
- Key
Laboratory of Functional Metal-Organic Compounds of Hunan Province,
Hunan Province Universities Key Laboratory of Functional Organometallic
Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, Hunan 421008, China
| | - Fengru Zhou
- National
and 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, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yuan Yang
- National
and 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, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Guobo Deng
- National
and 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, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yun Liang
- National
and 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, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China
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26
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Wang K, Jia Z, Bai Y, Wang X, Hodgkiss SE, Chen L, Chong SY, Wang X, Yang H, Xu Y, Feng F, Ward JW, Cooper AI. Synthesis of Stable Thiazole-Linked Covalent Organic Frameworks via a Multicomponent Reaction. J Am Chem Soc 2020; 142:11131-11138. [DOI: 10.1021/jacs.0c03418] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Kewei Wang
- Department of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, China
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
| | - Zhifang Jia
- Department of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, China
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
| | - Yang Bai
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
| | - Xue Wang
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
| | - Sophie E. Hodgkiss
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
| | - Linjiang Chen
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
| | - Samantha Y. Chong
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
| | - Xiaoyan Wang
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
| | - Haofan Yang
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
| | - Yongjie Xu
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
| | - Feng Feng
- Department of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, 037009, China
| | - John W. Ward
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
| | - Andrew I. Cooper
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Liverpool L69 7ZD, U.K
- Leverhulme Research Centre for Functional Materials Design, University of Liverpool, Liverpool, U.K
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27
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Liu J, Wang Z, Wang K, Liu D, Yang Y, Fan J, Zhuo K, Yue Y. Elemental Sulfur‐Promoted [2+3+1] Annulation for Synthesis of Functionalized Thiochromeno[2,3‐
b
]indoles from Indole Derivatives. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000159] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jianming 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 Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Zhixian Wang
- 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 Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Ke Wang
- 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 Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Dong 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 Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Yan Yang
- 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 Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Junjun Fan
- 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 Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Kelei Zhuo
- 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 Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
| | - Yuanyuan Yue
- 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 Boron Chemistry and Advanced Energy Materials School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 P. R. China
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28
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Huynh TV, Doan KV, Luong NTK, Nguyen DTP, Doan SH, Nguyen TT, Phan NTS. New synthesis of 2-aroylbenzothiazoles via metal-free domino transformations of anilines, acetophenones, and elemental sulfur. RSC Adv 2020; 10:18423-18433. [PMID: 35517240 PMCID: PMC9053705 DOI: 10.1039/d0ra01750g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/04/2020] [Indexed: 11/27/2022] Open
Abstract
A new synthesis of 2-aroylbenzothiazoles via iodine-promoted domino transformations of anilines, acetophenones, and elemental sulfur was demonstrated. The highlights of this tandem synthesis are (1) easily available anilines and acetophenones as feedstock; (2) transition metal-free conditions; (3) inexpensive, nontoxic, easy handling, and abundant elemental sulfur as a building block. This synthetic strategy would complement the existing methods in the synthesis of this important heterocyclic scaffold. To our best knowledge, the formation of 2-aroylbenzothiazoles from simple anilines, acetophenones, and elemental sulfur was not previously reported in the literature. A new synthesis of 2-aroylbenzothiazoles via iodine-promoted domino transformations of anilines, acetophenones, and elemental sulfur was demonstrated.![]()
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Affiliation(s)
- Tien V Huynh
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam +84 8 38637504 +84 8 38647256 ext. 5681.,Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam.,Faculty of Chemical Technology, Ho Chi Minh City University of Food Industry (HUFI) 140 Le Trong Tan, Tan Phu District Ho Chi Minh City Vietnam
| | - Khang V Doan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam +84 8 38637504 +84 8 38647256 ext. 5681.,Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
| | - Ngoc T K Luong
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam +84 8 38637504 +84 8 38647256 ext. 5681.,Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam.,Faculty of Chemical Technology, Ho Chi Minh City University of Food Industry (HUFI) 140 Le Trong Tan, Tan Phu District Ho Chi Minh City Vietnam
| | - Duyen T P Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam +84 8 38637504 +84 8 38647256 ext. 5681.,Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam.,Faculty of Chemical Technology, Ho Chi Minh City University of Food Industry (HUFI) 140 Le Trong Tan, Tan Phu District Ho Chi Minh City Vietnam
| | - Son H Doan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam +84 8 38637504 +84 8 38647256 ext. 5681.,Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
| | - Tung T Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam +84 8 38637504 +84 8 38647256 ext. 5681.,Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
| | - Nam T S Phan
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT) 268 Ly Thuong Kiet, District 10 Ho Chi Minh City Vietnam +84 8 38637504 +84 8 38647256 ext. 5681.,Vietnam National University Ho Chi Minh City Linh Trung Ward, Thu Duc District Ho Chi Minh City Vietnam
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29
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Zhu X, Zhang F, Kuang D, Deng G, Yang Y, Yu J, Liang Y. K2S as Sulfur Source and DMSO as Carbon Source for the Synthesis of 2-Unsubstituted Benzothiazoles. Org Lett 2020; 22:3789-3793. [DOI: 10.1021/acs.orglett.0c00994] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaoming Zhu
- Key Laboratory of Functional Metal−Organic Compounds of Hunan Province, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, Hunan 421008, China
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Fuxing Zhang
- Key Laboratory of Functional Metal−Organic Compounds of Hunan Province, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, Hunan 421008, China
| | - Daizhi Kuang
- Key Laboratory of Functional Metal−Organic Compounds of Hunan Province, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, Hunan 421008, China
| | - Guobo Deng
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yuan Yang
- Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Jiangxi Yu
- Key Laboratory of Functional Metal−Organic Compounds of Hunan Province, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, Hunan 421008, China
| | - Yun Liang
- 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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30
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Chen W, Zhu X, Wang F, Yang Y, Deng G, Liang Y. Iodine-Catalyzed Three-Component Cascade Reaction for the Synthesis of Substituted 2-Phenylnaphtho[1,3]selenazoles under Transition-Metal-Free Conditions. J Org Chem 2020; 85:3349-3357. [DOI: 10.1021/acs.joc.9b03154] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Wenqi 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
| | - Xiaoming Zhu
- Key Laboratory of Functional Metal-Organic Compounds of Hunan Province, Hunan Province Universities Key Laboratory of Functional Organometallic Materials, College of Chemistry and Material Science, Hengyang Normal University, Hengyang, Hunan 421008, 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
| | - 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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31
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Kittikool T, Yotphan S. Metal-Free Direct C-H Thiolation and Thiocyanation of Pyrazolones. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901770] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Tanakorn Kittikool
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
| | - Sirilata Yotphan
- Department of Chemistry and Center of Excellence for Innovation in Chemistry; Faculty of Science; Mahidol University; Rama VI Road 10400 Bangkok Thailand
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32
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Jiang J, Tuo X, Fu Z, Huang H, Deng GJ. Three-component synthesis of 1,4-benzothiazines via iodide-catalyzed aerobic C–H sulfuration with elemental sulfur. Org Biomol Chem 2020; 18:3234-3238. [DOI: 10.1039/d0ob00074d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Five to Six: Beyond the well-established thiazole formation from elemental sulfur, this method provides the first access to the corresponding six-membered N,S-heterocyclic products via direct functionalization of multiple C–H bonds.
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Affiliation(s)
- Jingjing Jiang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Xiaolong Tuo
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Zhuquan Fu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
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33
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StC. Black D, Alamgir M, Jiang H, Bhadbhade M, Kumar N. Synthesis and Reactivity of Dimethoxy Activated Benzothiazoles. HETEROCYCLES 2020. [DOI: 10.3987/com-20-14333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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34
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Ni P, Tan J, Li R, Huang H, Zhang F, Deng GJ. Brønsted acid-promoted thiazole synthesis under metal-free conditions using sulfur powder as the sulfur source. RSC Adv 2020; 10:3931-3935. [PMID: 35492663 PMCID: PMC9048575 DOI: 10.1039/c9ra09656f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 01/07/2020] [Indexed: 01/25/2023] Open
Abstract
A Brønsted acid-promoted sulfuration/annulation reaction for the one-pot synthesis of bis-substituted thiazoles from benzylamines, acetophenones, and sulfur powder has been developed. One C–N bond and multi C–S bonds were selectively formed in one pot. The choice of the Brønsted acid was the key to the high efficiency of this transformation under metal-free conditions. A Brønsted acid-promoted protocol for the synthesis of 2,4-disubstituted thiazoles from benzylamines, acetophenones, and sulfur powder under metal-free conditions is described.![]()
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Affiliation(s)
- Penghui Ni
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Jing Tan
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Rong Li
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Feng Zhang
- College of Science
- Hunan Agricultural University
- Changsha
- China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
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35
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Do NT, Tran KM, Phan HT, To TA, Nguyen TT, Phan NTS. Functionalization of activated methylene C-H bonds with nitroarenes and sulfur for the synthesis of thioamides. Org Biomol Chem 2019; 17:8987-8991. [PMID: 31584054 DOI: 10.1039/c9ob01751h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We report a method to obtain arylthioamides by the functionalization of sp3 C-H bonds in phenylacetic acids and benzyl alcohols. Reactions proceeded without the use of any solvents and were compatible with many functionalities and heterocycles. These conditions allow for a rapid synthesis of thioamides from simple, commercial substrates.
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Affiliation(s)
- Nhan T Do
- Faculty of Chemical Engineering, HCMC University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam.
| | - Khoa M Tran
- Faculty of Chemical Engineering, HCMC University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam.
| | - Hao T Phan
- Faculty of Chemical Engineering, HCMC University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam.
| | - Tuong A To
- Faculty of Chemical Engineering, HCMC University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam.
| | - Tung T Nguyen
- Faculty of Chemical Engineering, HCMC University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam.
| | - Nam T S Phan
- Faculty of Chemical Engineering, HCMC University of Technology, VNU-HCM, 268 Ly Thuong Kiet, District 10, Ho Chi Minh City, Vietnam.
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36
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Zhang J, Zhao X, Liu P, Sun P. TBHP/KI-Promoted Annulation of Anilines, Ethers, and Elemental Sulfur: Access to 2-Aryl-, 2-Heteroaryl-, or 2-Alkyl-Substituted Benzothiazoles. J Org Chem 2019; 84:12596-12605. [DOI: 10.1021/acs.joc.9b02145] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jie Zhang
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Xin Zhao
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Ping Liu
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
| | - Peipei Sun
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, P. R. China
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37
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38
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Liu J, Zhang Y, Yue Y, Wang Z, Shao H, Zhuo K, Lv Q, Zhang Z. Metal-Free Dehydrogenative Double C–H Sulfuration To Access Thieno[2,3-b]indoles Using Elemental Sulfur. J Org Chem 2019; 84:12946-12959. [DOI: 10.1021/acs.joc.9b01586] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Yanyan Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Zhixian Wang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Huibin Shao
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Kelei Zhuo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Qingzhang Lv
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, 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, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
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39
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Deng S, Chen H, Ma X, Zhou Y, Yang K, Lan Y, Song Q. S 8-Catalyzed triple cleavage of bromodifluoro compounds for the assembly of N-containing heterocycles. Chem Sci 2019; 10:6828-6833. [PMID: 31391905 PMCID: PMC6657413 DOI: 10.1039/c9sc01333d] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 05/31/2019] [Indexed: 12/15/2022] Open
Abstract
An unprecedented S8-catalyzed selective triple-cleavage of bromodifluoroacetamides is disclosed for the first time.
An unprecedented S8-catalyzed selective triple-cleavage of bromodifluoroacetamides is disclosed for the first time. Valuable 2-amido substituted benzimidazoles, benzoxazoles and benzothiazoles were obtained in good to excellent yields in a cascade protocol in this strategy. Mechanistic studies suggested that a C2 source was generated in situ by selective cleavage of three C–X bonds, including two inert C(sp3)–F bonds on bromodifluoroacetamides, while leaving C–C bonds intact. This strategy will undoubtedly further consummate the role of halo difluoro compounds and enrich both fluorine chemistry and pharmaceutical sciences.
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Affiliation(s)
- Shuilin Deng
- Institute of Next Generation Matter Transformation , College of Chemical Engineering , College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard , Xiamen , Fujian 361021 , China .
| | - Haohua Chen
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China
| | - Xingxing Ma
- Institute of Next Generation Matter Transformation , College of Chemical Engineering , College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard , Xiamen , Fujian 361021 , China .
| | - Yao Zhou
- Institute of Next Generation Matter Transformation , College of Chemical Engineering , College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard , Xiamen , Fujian 361021 , China .
| | - Kai Yang
- College of Chemistry , Fuzhou University , Fuzhou , Fujian 350108 , China
| | - Yu Lan
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China.,College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou 450001 , P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation , College of Chemical Engineering , College of Material Sciences Engineering at Huaqiao University , 668 Jimei Boulevard , Xiamen , Fujian 361021 , China . .,College of Chemistry , Fuzhou University , Fuzhou , Fujian 350108 , China.,State Key Laboratroy of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , Shanghai 200032 , P. R. China
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40
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Zheng Z, Chen L, Qian C, Zhu X, Yang Y, Liu J, Yang Y, Liang Y. Copper-catalyzed synthesis of 2-acylbenzo[b]thiophenes from 3-(2-iodophenyl)-1-arylpropan-1-ones and potassium sulfide under aerobic conditions. Org Biomol Chem 2019; 16:8020-8024. [PMID: 30334048 DOI: 10.1039/c8ob02315h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A method was developed for the synthesis of 2-acylbenzo[b]thiophenes via a copper-catalyzed sulfuration of 3-(2-iodophenyl)-1-arylpropan-1-ones with K2S under aerobic conditions. Mechanistically, this procedure was proved to involve the formation of a dihydrobenzo[b]thiophene intermediate.
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Affiliation(s)
- Zhilei Zheng
- 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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41
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Gao YC, Huang ZB, Xu L, Li ZD, Lai ZS, Tang RY. Iodine-promoted radical alkyl sulfuration of imidazopyridines with dialkyl azo compounds and elemental sulfur. Org Biomol Chem 2019; 17:2279-2286. [PMID: 30724304 DOI: 10.1039/c8ob03191f] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Dialkyl azo compounds were found to be effective alkyl radical sources for direct alkyl sulfuration with imidazopyridines using elemental sulfur under metal-free conditions. Iodine, an inexpensive and mild reagent, could promote alkyl sulfuration. A variety of quaternary cyanoalkyl radicals were successfully coupled with elemental sulfur. A subsequent C-H sulfuration of imidazopyridines afforded a diverse array of imidazopyridine derivatives bearing cyanoalkylthio groups. The cyano group could be modified and further underwent condensation with 2-aminothiazole to afford an interesting heterocyclic amide. Control experiments showed that iodine could greatly suppress the self-coupling of cyanoalkyl radicals, thus making the sulfuration proceed smoothly.
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Affiliation(s)
- Yong-Chao Gao
- Department of Applied Chemistry, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China.
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42
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Sheng J, Liu J, Zhao H, Zheng L, Wei X. Metal-free synthesis of imidazo[1,5-a]pyridines via elemental sulfur mediated sequential dual oxidative Csp 3-H amination. Org Biomol Chem 2019; 16:5570-5574. [PMID: 30047971 DOI: 10.1039/c8ob01391h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient approach has been developed for the synthesis of imidazo[1,5-a]pyridines using the elemental sulfur mediated sequential dual oxidative Csp3-H amination of 2-pyridyl acetates and amines under metal- and peroxide-free conditions. Broad substrate scope, operational simplicity and gram-scale ability make this chemistry very practical.
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Affiliation(s)
- Jie Sheng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, P. R. China.
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43
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Dey A, Hajra A. Metal-Free Synthesis of 2-Arylbenzothiazoles from Aldehydes, Amines, and Thiocyanate. Org Lett 2019; 21:1686-1689. [DOI: 10.1021/acs.orglett.9b00245] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amrita Dey
- 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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44
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Zhang J, Song C, Sheng L, Liu P, Sun P. Annulation of 1-(2-Aminoaryl)pyrroles, Ethers with Elemental Sulfur To Give 1,3,6-Benzothiadiazepine Derivatives through Double C–S Bond Formation and C–O Cleavage of Ethers. J Org Chem 2019; 84:2191-2199. [DOI: 10.1021/acs.joc.8b03187] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jie Zhang
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Chuwen Song
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Linfeng Sheng
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Ping Liu
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
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45
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Xing Q, Ma Y, Xie H, Xiao F, Zhang F, Deng GJ. Iron-Promoted Three-Component 2-Substituted Benzothiazole Formation via Nitroarene ortho-C–H Sulfuration with Elemental Sulfur. J Org Chem 2019; 84:1238-1246. [DOI: 10.1021/acs.joc.8b02619] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Qiaoyan Xing
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yanfeng Ma
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Hao Xie
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Fuhong Xiao
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Feng Zhang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- College of Science, Hunan Agricultural University, Changsha 410128, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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46
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Zhou P, Huang Y, Wu W, Yu W, Li J, Zhu Z, Jiang H. Direct access to bis-S-heterocyclesviacopper-catalyzed three component tandem cyclization using S8as a sulfur source. Org Biomol Chem 2019; 17:3424-3432. [DOI: 10.1039/c9ob00377k] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An elemental sulfur atom donor strategy for constructing a thiophene-fused thiazole bis-S-heterocyclic skeletonviaCu-catalyzed three-component tandem cyclization has been developed.
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Affiliation(s)
- Peiqi Zhou
- 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
| | - 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
| | - 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
| | - Wentao 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
| | - Jianxiao 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
| | - Zhongzhi 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
| | - 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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47
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Xu Z, Huang H, Chen H, Deng GJ. Catalyst- and additive-free annulation/aromatization leading to benzothiazoles and naphthothiazoles. Org Chem Front 2019. [DOI: 10.1039/c9qo00592g] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalyst- and additive-free three-component annulation/aromatization enable a highly efficient entry to naphtho[1,2-d]thiazoles and benzo[d]thiazoles.
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Affiliation(s)
- Zhenhua Xu
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Hongbiao Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education
- College of Chemistry
- Xiangtan University
- Xiangtan 411105
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48
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Deng JC, Zhang JR, Li MH, Huang JC, Lai ZS, Tong XY, Cui ZN, Tang RY. Direct thiocarbamation of imidazoheterocycles via dual C–H sulfurization. Org Biomol Chem 2019; 17:7854-7857. [DOI: 10.1039/c9ob01403a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Direct thiocarbamation via dual C–H sulfurization.
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Affiliation(s)
- Jian-Chao Deng
- Department of Applied Chemistry
- College of Materials and Energy
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources
- South China Agricultural University
- Guangzhou 510642
| | - Jun-Rong Zhang
- Department of Applied Chemistry
- College of Materials and Energy
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources
- South China Agricultural University
- Guangzhou 510642
| | - Ming-Hua Li
- Department of Applied Chemistry
- College of Materials and Energy
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources
- South China Agricultural University
- Guangzhou 510642
| | - Jie-Cheng Huang
- Department of Applied Chemistry
- College of Materials and Energy
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources
- South China Agricultural University
- Guangzhou 510642
| | - Zhi-Sheng Lai
- Department of Applied Chemistry
- College of Materials and Energy
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources
- South China Agricultural University
- Guangzhou 510642
| | - Xin-Yu Tong
- Department of Applied Chemistry
- College of Materials and Energy
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources
- South China Agricultural University
- Guangzhou 510642
| | - Zi-Ning Cui
- Department of Applied Chemistry
- College of Materials and Energy
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources
- South China Agricultural University
- Guangzhou 510642
| | - Ri-Yuan Tang
- Department of Applied Chemistry
- College of Materials and Energy
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources
- South China Agricultural University
- Guangzhou 510642
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49
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Chen L, Min H, Zeng W, Zhu X, Liang Y, Deng G, Yang Y. Transition-Metal-Free Sulfuration/Annulation of Alkenes: Economical Access to Thiophenes Enabled by the Cleavage of Multiple C-H Bonds. Org Lett 2018; 20:7392-7395. [PMID: 30460854 DOI: 10.1021/acs.orglett.8b03078] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A novel, atom economical, and transition-metal-free strategy for the synthesis of thiophenes from substituted buta-1-enes with potassium sulfide has been presented. The reaction achieves double C-S bond formations via cleavage of multiple C-H bonds and provides an efficient approach to access various functionalized thiophenes. Moreover, the strategy can also be used for the synthesis of thiophenes from 1,4-diaryl-1,3-dienes. Mechanistically, DMSO plays a role of oxidant and S3•- in situ generated from K2S is involved.
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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
| | - Hao Min
- 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
| | - Weilan Zeng
- 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
| | - Xiaoming Zhu
- 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
| | - 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
| | - 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
| | - 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
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50
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Liu Y, Yuan X, Guo X, Zhang X, Chen B. Efficient 2-aryl benzothiazole formation from acetophenones, anilines, and elemental sulfur by iodine-catalyzed oxidative C(CO)-C(alkyl) bond cleavage. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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