Synthesis of diarylmethyl thioethersviaa DABCO-catalyzed 1,6-conjugate addition reaction ofp-quinone methides with organosulfur reagents DOI Creative Commons

Ming-Shan Shuai,

Xiang Guan,

Xing‐Hai Fei

et al.

RSC Advances, Journal Year: 2023, Volume and Issue: 13(19), P. 12982 - 12990

Published: Jan. 1, 2023

A rapid and simple method was developed for the synthesis of diarylmethyl thioethers via a DABCO-catalyzed 1,6-conjugate addition reaction para-quinone methides (p-QMs) with organosulfur reagents. series were synthesized at 13-85% yields by this method. After that, antibacterial activities their derivatives evaluated. The MIC range (μg mL-1) against Staphylococcus aureus ATCC 25923 clinically isolated methicillin-resistant S. 8-128 64-128, respectively.

Language: Английский

Recent Advances in Deoxygenative Thioether Synthesis Using Oxygenated Sulfur Surrogates DOI
Cong Ma, Long Yin Lam

Synthesis, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Abstract Thioethers (sulfides) play a crucial role in therapeutics, diagnostics, and functional materials. Traditionally, their synthesis involved the use of thiols or derivatives, which are associated with unpleasant odors potential health risks. Recently, significant research has focused on employing oxygenated sulfur compounds, such as sulfinates, sulfonyl oxyacids, sulfoxides, thiol surrogates for thioether synthesis. This review highlights recent advancements deoxygenative synthesis, categorizing them by reaction types, including cross-coupling reactions, C–H functionalization, hydro/halo/oxy-thiolation unsaturated hydrocarbons. We also discuss representative mechanisms to provide comprehensive understanding these innovative approaches. 1 Introduction 2 Cross-Coupling Reactions 3 Functionalization 4 Hydro/Halo/Oxy-thiolation Unsaturated Hydrocarbons 5 Conclusion

Language: Английский

Citations

1

Multicomponent Synthesis of S-Benzyl Dithiocarbamates from para-Quinone Methides and Their Biological Evaluation for the Treatment of Alzheimer’s Disease DOI
Rapelly Venkatesh, Gauri Shankar,

Aswathi C. Narayanan

et al.

The Journal of Organic Chemistry, Journal Year: 2022, Volume and Issue: 87(10), P. 6730 - 6741

Published: May 12, 2022

Multicomponent synthesis of biologically relevant S-benzyl dithiocarbamates from para-quinone methides, amines, and carbon disulfide are described under catalyst additive-free conditions. The reactions proceeded at room temperature in a short span time with excellent yields. One the synthesized compounds, 3e showed considerable acetylcholinesterase (AChE) inhibitory (51.70 + 5.63% 20 μm) antioxidant (63.52 ± 1.15 activities.

Language: Английский

Citations

28

Visible-light-induced tandem ring opening/1,6-conjugate addition of cyclobutanols with p-quinone methides under metal- and additive-free conditions DOI

Tongyao Zhou,

Jie Zeng, Yang Liu

et al.

Green Chemistry, Journal Year: 2024, Volume and Issue: 26(3), P. 1375 - 1380

Published: Jan. 1, 2024

A visible-light-mediated tandem ring opening/1,6-conjugate addition of cyclobutanols with p -quinone methides was developed. This protocol allowed the formation δ,δ-diaryl ketones in presence a readily available organic photocatalyst.

Language: Английский

Citations

5

Recent advances of sodium sulfinates in radical reactions DOI

Xiajuan Ye,

Xiangmei Wu, Sheng‐Rong Guo

et al.

Tetrahedron Letters, Journal Year: 2021, Volume and Issue: 81, P. 153368 - 153368

Published: Aug. 30, 2021

Language: Английский

Citations

25

Rongalite as a Sulfone Source: Sulfonylation of para‐Quinone Methides and Alkyl/allyl Halides DOI
Someshwar B. Kale, Popat K. Jori, Utpal Das

et al.

Chemistry - An Asian Journal, Journal Year: 2022, Volume and Issue: 17(16)

Published: May 30, 2022

Abstract A one‐pot three‐component reaction using p ‐quinone methides, rongalite and alkyl/allyl halides has been described. The corresponding unsymmetrical sulfones were obtained in good yields under mild conditions the absence of any metal, base or other additive.

Language: Английский

Citations

17

Biocompatible C-S bond construction for diarylmethyl thioethers DOI Creative Commons
Zhenwei Zhang, Tao Xu,

C. Ju

et al.

Green Synthesis and Catalysis, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

Citations

0

Phosphine-catalysed transformations of ortho- and para-quinone methides DOI Creative Commons
Aitor Maestro, Mercedes Zurro

Organic & Biomolecular Chemistry, Journal Year: 2023, Volume and Issue: 21(41), P. 8244 - 8258

Published: Jan. 1, 2023

A powerful and straightforward way to access a variety of oxa-heterocycles N-heterocycles: the phosphine-catalysed transformations o -QM, p -QM aza- -QM.

Language: Английский

Citations

8

Multicomponent Synthesis of Biologically Relevant S‐Diarylmethane Dithiocarbamates Using p‐Quinone Methides DOI

Sushanta Kumar Parida,

Sudhir Kumar Hota,

Sonal Nagarkar-Jaiswal

et al.

Advanced Synthesis & Catalysis, Journal Year: 2022, Volume and Issue: 364(9), P. 1549 - 1554

Published: March 16, 2022

Abstract A metal and base‐free, operationally simple, scalable multicomponent approach towards the synthesis of S ‐diarylmethane dithiocarbamates is reported. range structurally electronically diverse p ‐quinone methides are shown to react with a variety amines, carbon disulfide furnish corresponding in good excellent yields under mild conditions. Furthermore, ‐QMs embedded aliphatic substituents well accommodated. Importantly, these readily accessible compounds demonstrated promising anti‐proliferative activity low micromolar ranges lung adenocarcinoma cells, reiterating importance developed methodology. magnified image

Language: Английский

Citations

13

Silver-catalyzed regioselective 1,6-hydroarylation of para-quinone methides with anilines and phenols DOI
Biquan Xiong,

Shipan Xu,

Weifeng Xu

et al.

Organic Chemistry Frontiers, Journal Year: 2022, Volume and Issue: 9(14), P. 3807 - 3817

Published: Jan. 1, 2022

A novel and facile method for the Ag-catalyzed regioselective 1,6-hydroarylation of para -quinone methides ( p -QMs) with anilines phenols has been established, a broad range (primary secondary, tertiary), -QMs are well tolerated.

Language: Английский

Citations

13

Nucleophilic Reactivities of Thiophenolates DOI
Patrick M. Jüstel, Cedric Pignot, Armin R. Ofial

et al.

The Journal of Organic Chemistry, Journal Year: 2021, Volume and Issue: 86(8), P. 5965 - 5972

Published: April 2, 2021

The nucleophilic reactivities of substituted thiophenolates were determined by following the kinetics their reactions with a series quinone methides (reference electrophiles) in DMSO at 20 °C...

Language: Английский

Citations

17