PVP‐I Catalyzed Hydroxysulfurization of α‐(Trifluoromethyl)‐Styrenes with Thiols: Access to Trifluoromethyl Tertiary Alcohol

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(6)

Published: Feb. 1, 2025

Abstract An efficient method for the synthesis of β ‐hydroxy‐ ‐CF 3 ‐thioether has been developed, utilizing povidone‐iodine (PVP‐I) as a recyclable catalyst and air oxidant. The reaction proceeded smoothly at room temperature, yielding desired in moderate to good yields. This can be scaled up gram‐scale without losing any efficiency. was also 8 repetitions. mechanism investigated plausible pathway proposed.

Language: Английский

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Photocatalytic selective alcohol oxidation and quinoxaline synthesis via hydrogen atom transfer (HAT) under visible light irradiation

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 116369 - 116369

Published: March 1, 2025

Language: Английский

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Thiol‐X Chemistry: A Skeleton Key Unlocking Advanced Polymers in Additive Manufacturing

Macromolecular Materials and Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Abstract Using additive manufacturing (AM) technologies for the fabrication of advanced polymeric objects is a logical progression to realize their potential within engineering applications that demand complex geometries. Thiol‐X chemistry has presented itself as diverse and invaluable toolkit accomplish such, satisfying both processing requirements properties desired fabricate range using variety AM technologies. The “click” nature many thiol‐X reactions, mechanisms polymerization, functional group tolerance orthogonality, desirable achievable with presents synergistic opportunity few other chemistries can broadly facilitate. As result, use gained rapid traction in recent years it now case are being viewed two sides same coin, whereby scope limitations whole system appreciated. This review highlights advancements, status, scope, opportunities achieve polymers by critically examining structure‐property‐processing‐performance relationships between different various

Language: Английский

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Donor–Acceptor Covalent Organic Frameworks as a Heterogeneous Photoredox Catalyst for Scissoring Alkenes to Carbonyl Constituents

The Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 88(19), P. 14065 - 14077

Published: Sept. 11, 2023

The conversion of alkenes to carbonyl constituents via the cleavage C═C bond is unique due its biological and pharmacological significance. Though a number oxidative protocols have been demonstrated for terminal electron-rich alkene systems, none them were optimized electron-deficient conjugated alkenes. In this work, covalent organic framework containing triphenylamine triazine units was revealed cleave under very mild conditions involving visible light irradiation photoredox property. can be conveniently broken across double their constituent derivatives on in presence air photocatalyst. This protocol applicable wide range an aqueous acetonitrile medium with high functional group tolerance regioselectivity. required tetramethylethylene diamine as sacrificial donor, do not demand any additives.

Language: Английский

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Lead halide perovskites for effective photocatalytic selective oxysulfenylation of alkenes

Molecular Catalysis, Journal Year: 2024, Volume and Issue: 564, P. 114255 - 114255

Published: June 13, 2024

Language: Английский

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Lead Halide Perovskites for Effective Photocatalytic Selective Oxysulfenylation of Alkenes

Published: Jan. 1, 2024

Lead halide perovskites are promising candidates for efficient phtocatalysts in organic synthesis due to their attractive properties light absorption, photogenerated charge transportation, and utilization. We report herein the development of photoinduced selective oxysulfenylation alkenes using CsPbBr3 nanocrystals that is visible light-responsive, easy-to-prepare, cost-effective. Under blue light-emitting diode (LED), a series alkene substrates demonstrated be highly reaction partners couple with disulfides tolerated various functional groups, affording diverse β-hydroxysulfides β-oxosulfides excellent yields high selectivity. Mechanism investigation shows visible-light induces generation thiyl radicals initiate reaction, followed by radical addition oxygenation form hydroperoxy sulfides intermediate, which convert β-oxy sulfoxides β-hydroxy sulfides. The work provides new exploration rational utilization achieve alkenes, displaying great potential chemistry via photocatalysis.

Language: Английский

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Formate‐Mediated Synthesis of β‐Hydroxysulfides from Olefins and Thiosulfonates via EDA Complex Strategy under Visible Light Irradiation in Air

Chinese Journal of Chemistry, Journal Year: 2024, Volume and Issue: 42(23), P. 3129 - 3134

Published: Aug. 13, 2024

Comprehensive Summary A visible‐light‐induced and efficient one‐pot synthesis of β ‐hydroxysulfides from olefins, thiosulfonates HCOOCs using an EDA complex strategy under air atmosphere at room temperature has been disclosed. plausible radical involved mechanism is proposed. During the reaction process, formates play a crucial role: first, as donors in complex; second, providers hydrogen source; third, by generating CO 2 •– to reduce peroxide intermediates, leading formation ‐hydroxysulfides. In contrast previously reported thiol‐oxygen co‐oxidation reactions, this simple sustainable approach features mild conditions, operational simplicity, odorless excellent functional group tolerance.

Language: Английский

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Hydroselenation of olefins: elucidating the β-selenium effect

Chemical Science, Journal Year: 2024, Volume and Issue: 15(48), P. 20523 - 20533

Published: Jan. 1, 2024

We report a light-promoted hydroselenation of alkenes with high

Language: Английский

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