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Murugappan S, Kuthe PV, Chandra Sekhar KVG, Sankaranarayanan M. Recent developments in thiochromene chemistry. Org Biomol Chem 2024. [PMID: 39026505 DOI: 10.1039/d4ob00690a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Thiochromenes are versatile sulfur-containing heterocyclic compounds that have received considerable interest in drug discovery because of their ability to act as crucial building blocks for synthesizing bioactive compounds. In particular, these scaffolds have found utility in the design of anticancer, anti-HIV, antioxidant, and antimicrobial agents, among others. Despite their pharmacological potential, the synthesis of these scaffolds is less explored in contrast to their oxygen-containing counterparts. This review classifies the synthetic processes into Michael addition, cycloaddition, ring-opening, coupling, cyclization and Diels-Alder reactions, and others. Reaction mechanisms, circumstances, and important instances are thoroughly discussed in each area. For instance, chiral catalysts and substrates like mercaptobenzaldehyde and cinnamaldehyde are used in Michael addition processes to achieve excellent enantioselectivity. In cycloaddition reactions, readily available substrates such as thioisatins and alkynes achieve regioselectivity and product production. Thiochromenes are also synthesized by ring-opening reactions with epoxides or aziridines. These reactions demonstrate the importance of catalysts and solvents in reaction control, particularly palladium catalysts for aryl halides and thiol coupling processes. Another major class discussed is cyclization reactions with alkynyl thiols and alkynes under regulated temperature and pressure conditions to efficiently synthesize thiochromenes. With the use of chiral substrates and catalysts, Diels-Alder processes increase yields and selectivity and enhance the variety of thiochromene compounds. This review emphasizes the versatility of thiochromenes in drug discovery and consolidates the existing literature on thiochromenes, scrutinizing the gaps and opportunities for synthesizing novel thiochromene-containing lead molecules.
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Affiliation(s)
- Solai Murugappan
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Vidya Vihar, Pilani-333031, Rajasthan, India.
| | - Pranali Vijaykumar Kuthe
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Vidya Vihar, Pilani-333031, Rajasthan, India.
| | - Kondapalli Venkata Gowri Chandra Sekhar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Hyderabad-500078, Telangana, India
| | - Murugesan Sankaranarayanan
- Department of Pharmacy, Birla Institute of Technology and Science Pilani, Pilani Campus, Vidya Vihar, Pilani-333031, Rajasthan, India.
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Martínez-Núñez C, Velasco N, Sanz R, Suárez-Pantiga S. Synthesis of highly substituted 1,3-dienes through halonium promoted 1,2-sulfur migration of propargylic thioethers. Chem Commun (Camb) 2024; 60:1794-1797. [PMID: 38258886 DOI: 10.1039/d3cc06194a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Conjugated 1-bromo or 1-iodo-1,3-dienes bearing a sulfide substituent have been synthesized via 1,2-sulfur migration from propargylic thioethers upon activation with NIS or NBS. The reaction generally proceeds with high control over the regio- and diastereoselectivity. Highly substituted thiophenes and selenophenes are easily obtained from the generated dienes.
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Affiliation(s)
- Clara Martínez-Núñez
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001-Burgos, Spain.
| | - Noelia Velasco
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001-Burgos, Spain.
| | - Roberto Sanz
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001-Burgos, Spain.
| | - Samuel Suárez-Pantiga
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001-Burgos, Spain.
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Li F, Yang Q, Liu MY, An PX, Du YL, Wang YB. Ag(I)-Mediated Annulation of 2-(2-Enynyl)pyridines and Propargyl Amines to Access 1-(2 H-Pyrrol-3-yl)indolizines. J Org Chem 2024; 89:304-312. [PMID: 38126126 DOI: 10.1021/acs.joc.3c02024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
An effective Ag(I)-mediated annulation of 2-(2-enynyl)pyridines and propargyl amines was developed, unexpectedly affording a broad range of functionalized 1-(2H-pyrrol-3-yl)indolizines in moderate to excellent yields. The developed method is characterized by operational simplicity, ready availability of starting materials, high regioselectivity, and broad substrate scope under mild reaction conditions. The Ag(I)-promoted cyclization of 2-(2-enynyl)pyridines and propargyl amines possibly results in the formation of the spiroindolizine, the ring-opening rearrangement of which may give the 1-(2H-pyrrol-3-yl)indolizine. Furthermore, a gram-scale reaction and synthetic transformations are also studied.
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Affiliation(s)
- Feng Li
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Qing Yang
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Ming-Yue Liu
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Pei-Xuan An
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Ya-Long Du
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
| | - Yan-Bo Wang
- College of Chemistry and Molecular Science, Henan University, Kaifeng, Henan 475004, China
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Shibata T, Iwaki T, Ito M. Ir‐Catalyzed Intramolecular Cyclization of 2‐Alkynyl Diaryl Sulfides for the Selective Synthesis of Sulfur‐Containing Polycyclic Compounds. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200565] [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)
| | | | - Mamoru Ito
- Advanced Science & Engineering, Waseda University JAPAN
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Velasco N, Martínez-Núñez C, Fernández-Rodríguez MÁ, Sanz R, Suárez-Pantiga S. NIS/HFIP–Mediated Synthesis of Indene‐based β‐Iodoalkenyl Sulfides from Propargylic Sulfides. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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6
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Synthesis of 2H-thiochromene derivatives (microreview). Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-021-03026-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Martínez‐Lara F, Suárez A, Velasco N, Suárez‐Pantiga S, Sanz R. Gold‐Catalyzed Reactions of 2‐Alkynyl‐1‐indolyl‐1,2‐diols with Thiols: Stereoselective Synthesis of (
Z
)‐α‐Indol‐3‐yl α‐(2‐Thioalkenyl) Ketones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202100930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fernando Martínez‐Lara
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias Universidad de Burgos Pza. Misael Bañuelos s/n 09001- Burgos Spain
| | - Anisley Suárez
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias Universidad de Burgos Pza. Misael Bañuelos s/n 09001- Burgos Spain
| | - Noelia Velasco
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias Universidad de Burgos Pza. Misael Bañuelos s/n 09001- Burgos Spain
| | - Samuel Suárez‐Pantiga
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias Universidad de Burgos Pza. Misael Bañuelos s/n 09001- Burgos Spain
| | - Roberto Sanz
- Área de Química Orgánica, Departamento de Química, Facultad de Ciencias Universidad de Burgos Pza. Misael Bañuelos s/n 09001- Burgos Spain
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Zhang C, Lv S, Wang Y, Zhang J, Wang XN, Chang J. Metal-free intramolecular hydroarylation of alkynes. Org Chem Front 2022. [DOI: 10.1039/d1qo01831k] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient metal-free intramolecular hydroarylation reaction of alkynes is described here. A series of aryl and N-group attached alkynes generated the intramolecular hydroarylation products in high yields.
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Affiliation(s)
- Chaofeng Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Songkui Lv
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Yanru Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jingyi Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Junbiao Chang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Henan Province, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, P. R. China
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Liu C, Li H, Wang B, Guo Z, Wang Y, Zhang J, Xie M. Temperature Controlled Di- and Monosulfonylation of Propargyl Alcohols with Sodium Sulfinates: Switchable Access to (E)-Allyl, Vinyldisulfones and Propargyl Sulfones. Org Chem Front 2022. [DOI: 10.1039/d1qo01906f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A switchable di- and monosulfonylation of propargyl alcohols with sodium sulfinates is developed, which successfully affords (E)-allyl, vinyldisulfones and propargyl sulfones in good to excellent yields, respectively. The salient features...
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Khan T, Rajesh P, Arun D, Yaragorla S. Stereoselective sulfenylation of oxindole-derived propargyl alcohols to access sulfenylated-3-alkenyloxindoles. Org Biomol Chem 2021; 19:10201-10209. [PMID: 34792078 DOI: 10.1039/d1ob01921j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ca-catalyzed, tetrasubstituted alkenyl-sulfenylation was achieved using readily available aryl/alkyl thiols and easily prepared oxindole-derived propargyl alcohols under solvent-free conditions. The reaction proceeded with hydrogen bonding assisted regioselective α-thiolation and subsequent calcium catalyzed stereoselective alkenylation to yield E-alkenyl thioethers with high diastereoselectivity.
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Affiliation(s)
- Tabassum Khan
- School of Chemistry, University of Hyderabad, 500046, Telangana, India.
| | - Pallava Rajesh
- School of Chemistry, University of Hyderabad, 500046, Telangana, India.
| | - Doma Arun
- School of Chemistry, University of Hyderabad, 500046, Telangana, India.
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Cheng S, Ou C, Lin H, Jia J, Tang H, Pan Y, Huang G, Meng X. Electrochemically Mediated Esterification of Aromatic Aldehydes with Aliphatic Alcohols via Anodic Oxidation. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202110019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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