Access to tetrahydrocarbazoles via a photocatalyzed cascade decarboxylation/addition/cyclization reaction DOI
Shuai Han, Zhang Chen, Yu Guo

et al.

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(23), P. 6694 - 6699

Published: Jan. 1, 2024

An efficient photocatalyzed decarboxylative coupling of indolepropionic acid NHPI esters with α,β-unsaturated carbonyl compounds has been developed, which provided structurally diverse tetrahydrocarbozles in moderate to good yields.

Language: Английский

Bimetallic Porphyrin Metal–Organic Framework as Photocatalyst for Red-Light-Driven Selective Reduction of Nitroarenes to Aromatic Amines DOI

S. K. KANG,

Tong Yue, Dandan Su

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 28, 2024

It is a great challenge to construct green catalytic system for the reduction of nitro compounds corresponding amines under mild conditions. Due low energy red light, it challenging develop photocatalytic selective nitroaromatics aromatic driven by light. A bimetallic porphyrin metal–organic framework (Bi-P(Co)MOF) was characterized Fourier transform infrared spectroscopy, X-ray diffraction, transmission electron microscopy, scanning and energy-dispersive techniques. The constructed photocatalyst Bi-PMOF-Co shows excellent activity conversion in high yields with NaBH4 as reducing agent at room temperature light irradiation. Moreover, protocol showed functional group compatibility, recyclability demonstrated five-cycle tests.

Language: Английский

Citations

5
Superior photocatalytic activity of porphyrin-immobilized on graphene oxide for oxidation of alkenes under visible light DOI
Saeed Rayati,

Yeganeh Davoudabadi Farahani,

Jahan B. Ghasemi

et al.

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114020 - 114020

Published: Feb. 1, 2025

Language: Английский

Citations

0
Red light excitation: illuminating photocatalysis in a new spectrum DOI Creative Commons

Lucas Fortier,

Corentin Lefebvre, Norbert Hoffmann

et al.

Beilstein Journal of Organic Chemistry, Journal Year: 2025, Volume and Issue: 21, P. 296 - 326

Published: Feb. 7, 2025

Red-light-activated photocatalysis has become a powerful approach for achieving sustainable chemical transformations, combining high efficiency with energy-saving, mild conditions. By harnessing the deeper penetration and selectivity of red near-infrared light, this method minimizes side reactions typical higher-energy sources, making it particularly suited large-scale applications. Recent advances highlight unique advantages both metal-based metal-free catalysts under red-light irradiation, broadening range possible reactions, from selective oxidations to complex polymerizations. In biological contexts, enables innovative applications in phototherapy controlled drug release, exploiting its tissue low cytotoxicity. Together, these developments underscore versatility impact photocatalysis, positioning as cornerstone green organic chemistry significant potential synthetic biomedical fields.

Language: Английский

Citations

0
Visible-Light-Mediated Rose Bengal- or [Ru(bpy)3]2+-Catalyzed Radical [4 + 2] Cycloaddition: An Efficient Route to Tetrahydrocarbazoles DOI Creative Commons

Cody Bishir,

Abigail Hubbard,

Liangyong Mei

et al.

ACS Omega, Journal Year: 2025, Volume and Issue: 10(10), P. 10713 - 10723

Published: March 7, 2025

A visible-light-induced Rose Bengal- or [Ru(bpy)3]2+-catalyzed radical [4 + 2] cycloaddition of redox-active indole N-hydroxyphthalimide esters with electron-deficient alkenes has been developed. This base-free protocol provides a facile and powerful route for the synthesis functionalized biologically significant tetrahydrocarbazoles under mild conditions. On one hand, when an organic photocatalyst-Rose Bengal was employed green light, desired were obtained in up to 82% yield. other reaction yield increased 93% presence [Ru(bpy)3Cl2]·6H2O blue light. The success gram-scale transformation experiments, as well photopromoted [5 further highlight practicality robustness this protocol. Mechanistic studies also support generation crucial alkyl intermediate.

Language: Английский

Citations

0
Red-shifted photoredox generation and trapping of alkyl radicals towards bioorthogonality DOI Creative Commons

David Montoto,

Uxía Deus-Lorenzo,

María Tomás‐Gamasa

et al.

Organic & Biomolecular Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

We report two potentially biocompatible photoredox systems for the activation and coupling of redox-active esters using low-energy light BnNAH as reductant.

Language: Английский

Citations

0
Access to tetrahydrocarbazoles via a photocatalyzed cascade decarboxylation/addition/cyclization reaction DOI
Shuai Han, Zhang Chen, Yu Guo

et al.

Organic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(23), P. 6694 - 6699

Published: Jan. 1, 2024

An efficient photocatalyzed decarboxylative coupling of indolepropionic acid NHPI esters with α,β-unsaturated carbonyl compounds has been developed, which provided structurally diverse tetrahydrocarbozles in moderate to good yields.

Language: Английский

Citations

1