Triphasic Hydroxysilylation of Alkenes by Mechanically Piezoelectric Catalysis

Angewandte Chemie International Edition, Год журнала: 2024, Номер 63(49)

Опубликована: Авг. 13, 2024

Abstract The 1,2‐hydroxysilylation of alkenes is crucial for synthesizing organosilicon compounds which are key intermediates in material science, pharmaceuticals, and organic synthesis. development strategies employing hydrogen atom transfer pathways currently hindered by the existence various competing reactions. Herein, we reported a novel mechanochemical strategy triphasic through single‐electron‐transfer pathway. Our approach not only circumvents competitive reactions to enable first‐ever unactivated but also pioneers research mechanic force‐induced under ambient conditions. This gentle method offers excellent compatibility with functional groups, operates simple solvent‐free conditions, ensures rapid reaction time. Preliminary mechanistic investigations suggest that silylboronate can be transformed silicon radical highly polarized Li 2 TiO 3 particles oxygen ball‐milling condition.

Язык: Английский

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Ball mill-induced piezocatalysis assessment for dye degradation using BiVO4

Materials Today Communications, Год журнала: 2023, Номер 37, С. 107306 - 107306

Опубликована: Окт. 11, 2023

Язык: Английский

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A Review on Piezoelectric-mediated Mechanoredox Reactions by Ball Milling in Organic Synthesis

Current Organic Chemistry, Год журнала: 2024, Номер 28(12), С. 905 - 913

Опубликована: Май 6, 2024

Abstract: Recently, the concept of mechanoredox chemistry has been proposed and welldeveloped in organic synthesis. Mechanoredox is conceptually similar to a photocatalyst reaction system, where piezoelectric materials are introduced system manner analogous photoredox catalysis. These reactions feature ability generate high-value radicals that do not require harsh conditions anhydrous anaerobic conditions, an expensive photocatalyst, use solvents, which renders these transformations highly industrially applicable. In addition, also emerging interdisciplinary research field combines material with synthetic create more useful reactions. This review provides comprehensive summary progress date specific transformation related mechanisms piezoelectric- mediated by ball milling

Язык: Английский

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Redox Reactions of Organic Molecules Using Rotating Magnetic Field and Metal Rods

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(26), С. 18143 - 18150

Опубликована: Июнь 25, 2024

In recent years, redox reactions have harnessed light or mechanical energy to enable the formation of chemical bonds. We postulated a complementary approach that electromagnetic induction could promote reaction organic molecules using rotating magnetic field and metal rods. Here, we report electromotive force activates redox-active trifluoromethylating reagents. This magnetoredox system can be applied trifluoromethylation heteroarenes with high regioselectivity hydrotrifluoromethylation alkenes without need for catalysts additives.

Язык: Английский

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Ball milling assisted mechano-catalytic dye degradation using SrTiO3 nanoparticles

RSC Mechanochemistry, Год журнала: 2024, Номер 1(5), С. 465 - 476

Опубликована: Янв. 1, 2024

Ball milling, traditionally employed for the synthesis of nanomaterials, have now been utilized as a direct driver catalysis due to its capability surface charge separation.

Язык: Английский

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Mechanoredox‐Catalyzed Organic Synthesis with Piezoelectric Materials: Quo Vadis?

ChemCatChem, Год журнала: 2025, Номер unknown

Опубликована: Янв. 24, 2025

Abstract Piezoelectric materials offer great promise due to their ability generate electric fields under mechanical stress, producing surface charges that drive otherwise kinetically sluggish redox reactions. The strained surfaces of these provide a unique advantage in controlling product selectivity and enabling reaction pathways are unattainable with conventional methods. This perspective highlights advancements, challenges, the future potential piezoelectric synthetic organic chemistry, focus on designing optimized for piezocatalyzed synthesis. Piezocatalysis is industrially relevant because its operational simplicity, mild, gram scale synthesis reusable catalysts, minimal solvent use, air tolerant conditions. It involves cycles facilitate one electron events without requiring light exposure or electrical bias. Despite significant progress, many fundamental aspects yet be fully understood. One example correlation between piezoelectricity catalytic activity, which not always linear, as demonstrated by comparison tetragonal cubic BaTiO₃. While BaTiO₃ piezoelectric, it shows excellent activity certain reactions such arylation, dicarbonylation, cyclization mechanochemical conditions comparable Considering all aspects, this aims stimulate discussion advance promising field right direction.

Язык: Английский

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Overcoming High Reduction Potentials via Consecutive Mechanical-Force-Induced Electron Transfer Strategy

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

Mechanical-force-induced redox catalysis has recently advanced rapidly, emerging as a green and innovative tool in synthetic chemistry. The foundation of this strategy lies the single electron transfer (SET) from polarized piezoelectric materials to substrates, which is initiated by potential generated through mechanical agitation. magnitude primarily influenced intrinsic properties material. In certain circumstances, however, may be insufficient trigger SET process, akin limitations visible-light excitation photocatalytic reactions. This challenge motivated us explore effective solutions. work, we establish catalytic system that utilizes consecutive mechanical-force-induced (ConMET) strategy. novel employs mechanochemical catalysts, with 9-phenyl-dihydroacridine (D1) serving sacrificial donors, facilitating produce significantly more powerful reductive species during grinding. Our approach effectively promotes reduction aryl iodides, bromides even electron-rich chlorides, possess potentials high − 2.8 V (vs. SCE), leading formation radicals. Ultimately, enables anti-Markovnikov hydroarylation alkenes dehalogenative deuteration aromatic halides (Cl, Br) under mild conditions.

Язык: Английский

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Mechanoredox-Enabled Isothiocyanation of Primary Amines Using Piezoelectric Material as the Redox Catalyst

The Journal of Organic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

A novel mechanoredox-enabled synthesis of aromatic and aliphatic isothiocyanates from primary amines carbon disulfide under ball milling conditions using a piezoelectric material (BaTiO3) as the redox catalyst has been developed. This method displays several features, such short reaction time, operational simplicity, room temperature air conditions, minimal solvent, broad substrate scope, recyclable cheap catalyst. Preliminary mechanistic studies revealed that highly polarized acted single-electron transfer (SET) oxidation reagent for key desulfurization process.

Язык: Английский

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Ball‐Milling‐Promoted Copper‐Catalyzed Solid‐State Radical C–H Difluoroalkylation Reactions

ChemistryEurope, Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

A mechanochemical strategy for promoting copper‐catalyzed solid‐state radical C–H difluoroalkylation reactions has been devised. Compared to traditional solution‐based methods, this mechanoredox approach offers enhanced ease of handling, greater cleanliness, and improved sustainability the synthesis difluoroalkylated indoles, which constitute crucial structural motifs in contemporary drug discovery. The underlying reaction mechanism is investigated through meticulous step‐by‐step control experiments that highlighted substantial influence conditions. versatility protocol demonstrated by its applications complex natural products derivatives.

Язык: Английский

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Enhancing Piezo-Catalytic Hydrogen Evolution on BiOCl through UV Irradiation

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 29, 2025

Hydrogen production from water using piezo-catalysis is increasingly popular, but it typically requires expensive noble metal cocatalysts to speed up the reactions. In this study, we found that a UV irradiation treatment on piezoelectric material BiOCl enhances its H2 evolution by 6.8 folds, 0.41 2.81 mmol/g/h, even outperforming those loaded with cocatalysts. Our experiments and simulations revealed prompts in situ reduction of lattice Bi3+ BiOCl, creating Bi nanoparticles surface. These serve as cocatalysts, enhancing hydrogen (1) capturing piezo-generated electrons Bi's higher work function; (2) facilitating charge transfer between due their intimate contact; (3) improving kinetics more suitable H* adsorption strength. This UV-enhancement technique can be applied various Bi-based materials (e.g., BiOBr, BiOI, Bi2WO6, etc.) well piezo-catalytic dye degradation reactions, demonstrating versatility potential for broader applications. research provides straightforward cost-effective approach improve performance without need costly

Язык: Английский

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