Molecules, Journal Year: 2022, Volume and Issue: 27(3), P. 825 - 825
Published: Jan. 26, 2022
Organic synthesis allows scientists to construct and modify organic compounds using a continuously growing arsenal of reactions methodologies [...].
Language: Английский
Chem, Journal Year: 2022, Volume and Issue: 8(10), P. 2594 - 2629
Published: Aug. 18, 2022
Language: Английский
Citations
102
Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(18), P. 9378 - 9418
Published: Jan. 1, 2024
Organic transformation by light-driven catalysis, especially, photocatalysis and photothermal denoted as photo(thermal) is an efficient, green, economical route to produce value-added compounds. In recent years, owing their diverse structure types, tunable pore sizes, abundant active sites, metal-organic framework (MOF)-based catalysis has attracted broad interest in organic transformations. this review, we provide a comprehensive systematic overview of MOF-based for First, the general mechanisms, unique advantages, strategies improve performance MOFs are discussed. Then, outstanding examples transformations over introduced according reaction type. addition, several representative advanced characterization techniques used revealing charge kinetics intermediates presented. Finally, prospects challenges field proposed. This review aims inspire rational design development materials with improved catalysis.
Language: Английский
Citations
59
Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(4), P. 1050 - 1056
Published: Jan. 1, 2024
A metal-free and mild one pot protocol for the traceless group directed electron–donor–acceptor (EDA) complex initiated radical coupling/dehydrogenation of arylazo-protected tetrahydroisoquinolines with benzyl/allyl bromide is reported.
Language: Английский
Citations
7
Chemical Reviews, Journal Year: 2025, Volume and Issue: unknown
Published: March 7, 2025
Constructing chemical bonds under green sustainable conditions has drawn attention from environmental and economic perspectives. The dissociation of (hetero)aryl-halide is a crucial step most arylations affording (hetero)arene derivatives. Herein, we summarize the (hetero)aryl halides activation enabling direct (hetero)arylation trapping reagents construction highly functionalized (hetero)arenes benign conditions. strategies for aryl iodides are classified into (a) hypervalent iodoarene followed by functionalization thermal/photochemical conditions, (b) aryl-I bond in presence bases with/without organic catalysts promoters, (c) photoinduced presence/absence organophotocatalysts, (d) electrochemical direct/indirect electrolysis mediated organocatalysts mediators acting as electron shuttles, (e) electrophotochemical redox-active organocatalysts. These modes result exhibiting diverse reactivity formal cations/radicals/anions aryne precursors. coupling these reactive intermediates with leads to facile selective formation C-C C-heteroatom bonds. ecofriendly, inexpensive, functional group-tolerant offer alternatives transition metal-based catalysis.
Language: Английский
Citations
1
ACS Catalysis, Journal Year: 2023, Volume and Issue: 13(5), P. 3370 - 3378
Published: Feb. 22, 2023
The oxidative aromatization of aliphatic
Language: Английский
Citations
15
Catalysis Today, Journal Year: 2023, Volume and Issue: 418, P. 114045 - 114045
Published: Feb. 20, 2023
Heterogeneous photocatalytic systems can provide green organic synthesis at cost-effective processes. In the present work, an efficient, environment-friendly and sustainable heterogeneous photocatalyst, metal-free exfoliated carbon nitride (GCN-T), is used in oxidative self-coupling of benzylamine (BZA) to produce N-benzylidenebenzylamine (BZI) within visible light range irradiation (LEDs with λmax = 417 nm) under mild reaction conditions. The issue selectivity successively addressed complete conversion BZA achieved upon 45 min reaction, irradiation, for 97 % towards BZI production. Electron paramagnetic resonance (EPR) spectroscopy investigate main reactive species involved reaction. This analysis revealed that superoxide singlet oxygen radicals played leading role amine mechanism. A pathway proposed include all identified generated during irradiation. results described here add portfolio customisable solutions efficient solar synthesis.
Language: Английский
Citations
13
Organic Letters, Journal Year: 2024, Volume and Issue: 26(12), P. 2435 - 2439
Published: March 19, 2024
A photocatalytic cross-dehydrogenative coupling of diarylphosphine oxides with alcohols and phenols has been developed. Using organic dye Rose Bengal as the photocatalyst air oxidant, reaction proceeded smoothly at room temperature. Both were feasible, affording various organophosphinates in high yields. The absence a halogenating reagent, transition-metal catalyst, green mild conditions make this strategy environmentally benign sustainable. Mechanistic studies indicated that is enabled by cooperation photoredox catalysis photosensitization.
Language: Английский
Citations
3
Beilstein Journal of Organic Chemistry, Journal Year: 2022, Volume and Issue: 18, P. 1672 - 1695
Published: Dec. 9, 2022
Organocatalysis is widely recognized as a key synthetic methodology in organic chemistry. It allows chemists to avoid the use of precious and (or) toxic metals by taking advantage catalytic activity small synthetically available molecules. Today, term organocatalysis mainly associated with redox-neutral asymmetric catalysis C-C bond-forming processes, such aldol reactions, Michael cycloaddition etc. Organophotoredox has emerged recently another important type which gained much attention been quite well-reviewed. At same time, there are significant number other especially oxidative, catalyzed redox-active molecules ground state (without light excitation). Unfortunately, many processes not literature field thus achievements fully consolidated systematized. The present article aimed at overviewing current state-of-art perspectives oxidative emphasis on challenging chemo-, regio- stereoselective CH-functionalization processes. systems based N-oxyl radicals, amines, thiols, oxaziridines, ketone/peroxide, quinones, iodine(I/III) compounds most developed catalyst types covered here.
Language: Английский
Citations
11
Bulletin of the Korean Chemical Society, Journal Year: 2022, Volume and Issue: 43(11), P. 1226 - 1230
Published: Aug. 30, 2022
Abstract A sustainable photochemical protocol for the oxidation of alcohols to ketones and carboxylic acids has been developed by using 2,4,6‐triphenylpyrylium tetrafluoroborate (TPPT) as organophotocatalyst molecular oxygen oxidant under visible light irradiation. The key reactive species, superoxide (O 2 •− ) first step from alcohol aldehyde singlet ( 1 O second acid, were generated successfully electron transfer energy pathways, respectively. range primary secondary converted corresponding or ketones, optimized reaction conditions applied synthesis benzocoumarin.
Language: Английский
Citations
10
Molecules, Journal Year: 2023, Volume and Issue: 28(6), P. 2695 - 2695
Published: March 16, 2023
The 1,3-bis(sulfomethyl)imidazole (bsmim) was effectively prepared by a multicomponent reaction, employing aminomethanesulfonic acid, glyoxal, and formaldehyde. catalytic activity of bsmim tested in the synthesis quinoline derivatives, means Friedländer allylic substitution alcohols with nitrogen-containing heterocycles. performance sulfo-imidazole derivative resulted higher comparison carboxyimidazole analogs (bcmim bcmimCl), under same reaction conditions. This type ionic organic solid allows promotion reactions absence solvent mild conditions, which improves sustainability synthetic processes.
Language: Английский
Citations
1