1
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Alfieri ML, Panzella L. The Multifaceted Opportunities Provided by the Pheomelanin-Inspired 1,4-Benzothiazine Chromophore: A Still-Undervalued Issue. Molecules 2023; 28:6237. [PMID: 37687069 PMCID: PMC10488698 DOI: 10.3390/molecules28176237] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
1,4-Benzothiazines are the main building blocks of the naturally occurring pheomelanin pigments, and their chromophoric properties have been strongly related to the well-known phototoxicity of these pigments, partly responsible for the high incidence of melanoma and other skin cancers in red-haired people. However, some peculiar features of the 1,4-benzothiazine chromophore could be functionally exploited in several sectors. Within this context, in this perspective, an overview of the very recently reported applications of the 1,4-benzothiazine chromophore in pH sensing, filter permeability control, smart packaging, electrochromic device fabrication, bioimaging, photocatalysis, and HPLC detection systems is provided, together with a brief presentation of recently developed synthetic approaches to the 1,4-benzothiazine scaffold, with the aim of emphasizing the still-undervalued multifunctional opportunities offered by this class of compounds.
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Affiliation(s)
| | - Lucia Panzella
- Department of Chemical Sciences, University of Naples “Federico II”, I-80126 Naples, Italy;
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2
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Chen W, Lu X, Zhou H. Base‐catalyzed Sulfurative Condensation of 2‐Oxoindoles to Isoindigos Using Elemental Sulfur. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wei Chen
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Xiao‐Bing Lu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
| | - Hui Zhou
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116024 China
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3
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Zheng L, Liu G, Zou X, Zhong Y, Deng L, Wu Y, Yang B, Wang Y, Guo W. DBU‐Promoted Three‐Component Cascade Annulations to Access Multiply Substituted 3‐Cyano‐thiophenes. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Gongping Liu
- Gannan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province CHINA
| | - Xiaoying Zou
- Gannan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province CHINA
| | - Yumei Zhong
- Gannan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province CHINA
| | - Lei Deng
- Gannan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province CHINA
| | - Yingying Wu
- Gannan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province CHINA
| | - Beining Yang
- Gannan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province CHINA
| | - Yihan Wang
- Gannan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province CHINA
| | - Wei Guo
- Gannan Normal University Key Laboratory of Organo-Pharmaceutical Chemistry of Jiangxi Province 赣南师范大学黄金校区 341000 Ganzhou CHINA
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4
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Mor S, Khatri M. Regioselective synthesis of benzo[ b]indeno[1,2- e][1,4]thiazin-11(10 aH)-ones and antimicrobial evaluation thereof. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2097876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Satbir Mor
- Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar, India
| | - Mohini Khatri
- Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar, India
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5
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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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6
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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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7
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Copper pyrithione (CuPT)-catalyzed/mediated amination and thioarylation of (hetero)aryl halides: A competition. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111981] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Lai YL, Yan S, He D, Zhou LZ, Chen ZS, Du YL, Li J. Palladium-catalyzed bisthiolation of terminal alkynes for the assembly of diverse ( Z)-1,2-bis(arylthio)alkene derivatives. RSC Adv 2021; 11:28447-28451. [PMID: 35478536 PMCID: PMC9037987 DOI: 10.1039/d1ra05773a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 08/18/2021] [Indexed: 01/19/2023] Open
Abstract
An efficient and straightforward palladium-catalyzed three-component cascade bisthiolation of terminal alkynes and arylhydrazines with sodium thiosulfate (Na2S2O3) as the sulfur source for the assembly of functionalized (Z)-1,2-bis(arylthio)alkene derivatives is described. Using 0.5 mol% IPr–Pd–Im–Cl2 as the catalyst, a wide range of terminal alkynes and arylhydrazines are well tolerated, thus producing the desired products in good yields with good functional group tolerance and excellent regioselectivity. Moreover, this protocol could be readily scaled up, showing potential applications in organic synthesis and material science. An efficient palladium-catalyzed bisthiolation of terminal alkynes and arylhydrazines with Na2S2O3 as the sulfur source for the assembly of (Z)-1,2-bis(arylthio)alkene derivatives is described.![]()
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Affiliation(s)
- Yin-Long Lai
- College of Chemistry and Civil Engineering, Shaoguan University Shaoguan 512005 P. R. China
| | - Shaoxi Yan
- College of Chemistry and Civil Engineering, Shaoguan University Shaoguan 512005 P. R. China
| | - Dan He
- 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
| | - Li-Zhen Zhou
- College of Chemistry and Civil Engineering, Shaoguan University Shaoguan 512005 P. R. China
| | - Zi-Shen Chen
- College of Chemistry and Civil Engineering, Shaoguan University Shaoguan 512005 P. R. China
| | - Yu-Long Du
- College of Chemistry and Civil Engineering, Shaoguan University Shaoguan 512005 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 .,Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology Guangzhou 510640 China
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9
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Zhan ZZ, He JP, Jiang PB, Zhang MM, Wang HS, Luo N, Huang GS. Cu(II)‐Catalyzed Synthesis of 2,3,6‐Trisubstituted Pyridines from Saturated Ketone and Alkynones/1,3‐Dicarbonyl Compounds. ChemistrySelect 2021. [DOI: 10.1002/slct.202100775] [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)
- Zhen Z. Zhan
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Jian P. He
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Peng B. Jiang
- Zhe Jiang Shaoxing Zhejiang Pharmaceutical Co., Ltd. No. 58 Changhe Road, Binhai New City Shaoxing City Zhejiang Province China
| | - Ming M. Zhang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - He S. Wang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Nan Luo
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
| | - Guo S. Huang
- State Key Laboratory of Applied Organic Chemistry Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province Department of Chemistry Lanzhou University Lanzhou P. R. China
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10
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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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11
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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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