Green Chemistry, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 6, 2024
We review in situ and post-synthetic methods for controlling the orientation of metal–organic frameworks. This highlights recent achievements approaches their implications sustainability green technologies.
Language: Английский
ACS Materials Letters, Journal Year: 2025, Volume and Issue: unknown, P. 610 - 619
Published: Jan. 16, 2025
Solar-driven organic synthesis using halide perovskites (HPs) has garnered much attention, but their unsatisfactory conversion efficiency limits further applications. Addressing charge dynamics and redox site issues is a straightforward approach to improving performance. Herein, we report the synergistic separation active modulation in lead-free Cs3Bi2Br9 HP N-vacancy reticular g-C3N4 nanosheet for selective C(sp3)–H bond activation. This regulation exhibits strong interfacial interaction, enabling effective transfer with more sites. Theoretical calculations experimental characterizations detailed enhanced reduced energy barriers surface photoredox reactions. When applied toluene oxidation under simulated solar light, optimized photocatalyst achieves total rate of 6865.3 μmol g–1 h–1 an outstanding benzaldehyde selectivity over 92%, outperforming most reported HP-based photocatalysts. work offers universal strategy developing efficient photocatalysts solar-to-chemical conversion.
Language: Английский
Citations
0
Chemical Synthesis, Journal Year: 2025, Volume and Issue: 5(1)
Published: Feb. 8, 2025
The conversion of toluene into high-value products without generating undesired CO2 remains a critical challenge. Selective oxidation under visible light irradiation has emerged as promising solution. This review offers comprehensive interpretation photocatalytic transformations in heterogeneous oxidation. We start by outlining the basic mechanism C–H bond activation and provide an overview reactive oxygen species (ROS) within systems. Subsequently, we summary strategies that have been developed to enhance selectivity system. Following this, advanced characterization techniques density functional theory (DFT) calculations are discussed for understanding structure-performance relationship photocatalysts mechanisms underlying processes. Finally, put forward detailed discussion current challenges potential directions future research, with aim offering valuable insights this emerging field. believe will not only spark greater creativity optimizing but also offer designing other
Language: Английский
Citations
0
Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 24, 2025
Language: Английский
Citations
0
Journal of Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 116106 - 116106
Published: March 1, 2025
Language: Английский
Citations
0
Communications Chemistry, Journal Year: 2025, Volume and Issue: 8(1)
Published: March 29, 2025
The functionalization of challenging unactivated C(sp3)–H bonds was achieved electrocatalytically via hydrogen atom transfer and without mediators. This possible through the sole activation surface Glassy Carbon Electrode (GCE) in an electrochemical fashion using a phosphate buffer. produced oxygenated functional groups on surface, capable abstracting these atoms from alkanes. Minisci Ritter-type reactions were this procedure. Extensive characterization activated GCE (AGCE) preliminary mechanistic studies allow us to propose plausible reaction mechanisms. Furthermore, regular battery can be used within protocol achieve desired substituted alkanes under inexpensive user-friendly conditions. Aliphatic compounds play crucial role pharmaceutical agrochemical industries, however, selective modification structures remains due high strength bonds. Here, authors report Minisci-type alkylation azaarenes with Ritter between nitriles glassy carbon electrode, achieving electrocatalytic inert that eliminates need for traditional mediators or metals.
Language: Английский
Citations
0
Published: June 17, 2024
The functionalization of challenging unactivated C(sp3)-H bonds was achieved electrocatalytically via hydrogen atom transfer and without mediators. This possible through the sole activation surface Glassy Carbon Electrode in an electrochemical fashion using a phosphate buffer. produced oxygenated functional groups on surface, capable abstracting these atoms from alkanes. Minisci Ritter-type reactions were this procedure. Extensive characterization AGCE preliminary mechanistic studies allow us to propose plausible reaction mechanisms. Furthermore, regular battery can be used within protocol achieve desired substituted alkanes under inexpensive user-friendly conditions.
Language: Английский
Citations
3
Nanoscale, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
This review highlights the recent advances in utilizing covalent organic frameworks (COFs) for photocatalytic applications.
Language: Английский
Citations
3
Published: March 26, 2024
The development of robust and reliable methods for the construction C(sp2)–C(sp3) bonds is vital accessing an increased array structurally diverse scaffolds in drug discovery campaigns. While significant advances towards this goal have been achieved using metallaphotoredox chemistry, many these utilise photocatalysts based on precious-metals due to their efficient redox processes tuneable properties. However, cost, scarcity, toxicity metals, search suitable replacements should be a priority. Here, we show use commercially available heterogeneous semiconductor graphitic carbon nitride (g-C3N4) as photocatalyst, combined with nickel catalysis, cross-coupling between aryl halide carboxylic acid coupling partners. g-C3N4 has shown engage single-electron-transfer (SET) energy-transfer (ET) formation C–X bonds, manuscript overcome previous limitations furnish C–C over C–O acids. A broad scope both halides acids presented, recycling photocatalyst demonstrated. mechanism reaction also investigated.
Language: Английский
Citations
2
Organic Letters, Journal Year: 2024, Volume and Issue: 26(27), P. 5805 - 5810
Published: July 1, 2024
Minisci-type dehydrogenative coupling of C(sp3)–H and N-heteroaromatics was performed with N-hydroxysuccinimide as a hydrogen atom transfer catalyst in photoelectrochemical cell composed mesoporous BiVO4 photoanode Pt electrode. In the absence metal catalysts chemical oxidants, range N-heteroarenes (e.g., quinolines, isoquinolines, quinoxaline) can undergo various partners to form corresponding products excellent yields.
Language: Английский
Citations
2
Chemistry - A European Journal, Journal Year: 2024, Volume and Issue: 30(42)
Published: May 27, 2024
Abstract Light‐driven carboxylation offers a promising approach for synthesizing valuable fine chemicals under mild conditions. Here we disclose heterogeneous photocatalytic strategy of C(sp 2 )−H activation formate hydrocarboxylation alkenes over zinc indium sulfide (ZnIn S 4 ) visible light. This protocol functions well with variety substituted styrenes good to excellent yields; it also works unactivated albeit lower yields. Mechanistic studies confirm the existence CO ⋅ − as key intermediate. It was found that is induced by S⋅ species on surface ZnIn via hydrogen atom transfer (HAT) instead photogenerated hole oxidation mechanism. Moreover, both cleavage HCOO and formation benzylic anion were be involved in rate‐determining step styrene.
Language: Английский
Citations
1