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Rampon D, Seckler D, da Luz EQ, Paixão DB, Larroza AME, Schneider PH, Alves D. Transition metal catalysed direct sulfanylation of unreactive C-H bonds: an overview of the last two decades. Org Biomol Chem 2022; 20:6072-6177. [DOI: 10.1039/d2ob00986b] [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
Transition metal catalysed direct sulfanylations of unreactive C-H bonds have become a unique and straightforward synthetic strategy in late-stage C-S bond formation of relevant complex molecules. Such transformations have represented...
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Tran KM, Nguyen NHK, Bui TT, To TA, Phan NTS, Le HV, Nguyen TT. Synthesis of primary N-arylthioglyoxamides from anilines, elemental sulfur and primary C-H bonds in acetophenones. RSC Adv 2020; 10:44743-44746. [PMID: 35516277 PMCID: PMC9058611 DOI: 10.1039/d0ra08740h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 12/07/2020] [Indexed: 12/31/2022] Open
Abstract
A simple method for coupling of anilines, acetophenones, and elemental sulfur to afford N-arylthioglyoxamides has been developed. Reactions proceeded in the presence of Na2SO3 and DMSO, thus eliminating the need for transition metals and external oxidants. Functionalities such as halogen, ester, methylthio, and heterocycle groups were compatible with the conditions. Electron-poor acetophenones sometimes gave isosteric glyoxamides. Sulfurative coupling of acetophenones and aniline in the presence of Na2SO3 and DMSO solvent to afford N-arylthioglyoxamides was developed.![]()
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Affiliation(s)
- Khoa M Tran
- 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
| | - Nguyen H K 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
| | - Thuy T Bui
- 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
| | - 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
| | - Ha V 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
| | - 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
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Dar AA, Shadab M, Khan S, Ali N, Khan AT. One-Pot Synthesis and Evaluation of Antileishmanial Activities of Functionalized S-Alkyl/Aryl Benzothiazole-2-carbothioate Scaffold. J Org Chem 2016; 81:3149-60. [PMID: 26999637 DOI: 10.1021/acs.joc.6b00113] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The synthesis of hitherto unreported S-alkyl/aryl benzothiazole-2-carbothioate is reported from thiols, oxalyl chloride, and 2-aminothiophenols using 10 mol % n-tetrabutylammonium iodide (TBAI) as catalyst in acetonitrile through multicomponent reaction (MCR) strategy. The present protocol favored formation of benzothiazoles and thioesters via simultaneous formation of C-N and C-S bonds in good yields with a wide range of substrates. A few of the synthesized derivatives were evaluated for their antimicrobial activity against the protozoan parasite Leishmania donovani, a causative agent of visceral leishmaniasis (VL). Further, these compounds displayed no toxicity toward macrophage RAW 264.7 cells and are therefore nontoxic and effective antileishmanial leads. In silico docking studies were performed to understand the possible binding site interaction with trypanothione reductase (TryR).
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Affiliation(s)
- Ajaz A Dar
- Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati 781 039, India
| | - M Shadab
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology , 4, Raja S.C. Mullick Road, Kolkata 700 032, India
| | - Suman Khan
- Department of Chemistry, Pohang University of Science and Technology , Pohang, 37673, Republic of South Korea
| | - Nahid Ali
- Infectious Diseases and Immunology Division, Indian Institute of Chemical Biology , 4, Raja S.C. Mullick Road, Kolkata 700 032, India
| | - Abu T Khan
- Department of Chemistry, Indian Institute of Technology Guwahati , Guwahati 781 039, India
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Sharma S, Pathare RS, Maurya AK, Gopal K, Roy TK, Sawant DM, Pardasani RT. Ruthenium Catalyzed Intramolecular C-S Coupling Reactions: Synthetic Scope and Mechanistic Insight. Org Lett 2016; 18:356-9. [PMID: 26761401 DOI: 10.1021/acs.orglett.5b03185] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A ruthenium catalyzed intramolecular C-S coupling reaction of N-arylthioureas for the synthesis of 2-aminobenzothiazoles has been developed. Kinetic, isotope labeling, and computational studies reveal the involvement of an electrophilic ruthenation pathway instead of a direct C-H activation. Stereoelectronic effect of meta-substituents on the N-arylthiourea dictates the final regioselective outcome of the reaction.
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Affiliation(s)
- Shivani Sharma
- Department of Chemistry, ‡Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan , Bandarsindri, Kishangarh - 305 817, Rajasthan, India
| | - Ramdas S Pathare
- Department of Chemistry, ‡Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan , Bandarsindri, Kishangarh - 305 817, Rajasthan, India
| | - Antim K Maurya
- Department of Chemistry, ‡Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan , Bandarsindri, Kishangarh - 305 817, Rajasthan, India
| | - Kandasamy Gopal
- Department of Chemistry, ‡Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan , Bandarsindri, Kishangarh - 305 817, Rajasthan, India
| | - Tapta Kanchan Roy
- Department of Chemistry, ‡Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan , Bandarsindri, Kishangarh - 305 817, Rajasthan, India
| | - Devesh M Sawant
- Department of Chemistry, ‡Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan , Bandarsindri, Kishangarh - 305 817, Rajasthan, India
| | - Ram T Pardasani
- Department of Chemistry, ‡Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan , Bandarsindri, Kishangarh - 305 817, Rajasthan, India
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