Low-energy photoredox catalysis

Nature Reviews Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 11, 2024

Язык: Английский

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From Structure to Function: Designing Iridium Catalysts with Spin-Forbidden Excitation for Low-Energy Light-Driven Reactions

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Апрель 7, 2025

Herein we describe a comprehensive study of ligand effects on optoelectronic properties series Ir(III) catalysts which undergo formally spin-forbidden excitation using low-energy light. We demonstrate that electronic and steric tuning several variables can be explained by their impact the HOMO LUMO energies complex. Density functional theory calculations catalysts' adiabatic triplet agree with experimental results to within 0.05 eV average. As many these subtle are independent each other, merger them in single complex tends have an additive effect thus succeeded developing family highly oxidizing iridium photocatalysts operate excitation.

Язык: Английский

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Benzothiazolines Acting as Carbanion and Radical Transfer Reagents in Carbon–Carbon Bond Construction

Molecules, Год журнала: 2025, Номер 30(8), С. 1711 - 1711

Опубликована: Апрель 11, 2025

Traditionally employed as hydrogenation reagents, benzothiazolines have emerged versatile carbanion and radical transfer playing a vital role in the construction of various carbon-carbon bonds. The cutting-edge progress photochemistry chemistry prompted study visible light-driven reactions, bringing into vibrant focus. Their chemical processes been uncovered to encompass variety activation mechanisms, with five distinct modes having identified. This work reviews innovative applications donors alkyl or acyl groups, achieving hydroalkylation hydroacylation substitution. By examining their diverse this review highlights potential serving groups for further research development. Moreover, will offer exemplary inspiration synthetic chemists, contributing ongoing evolution utility organic synthesis.

Язык: Английский

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Photocatalyzed Annulation‐Biselenylation of Enynone with Diarylselenides toward Biselenium‐Substituted 1‐Indanones under Metal‐ and Photosensitizer‐Free Conditions

Chinese Journal of Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 17, 2025

Comprehensive Summary A practical photocatalytic annulation‐biselenylation strategy has been developed for the efficient synthesis of biselenium‐substituted 1‐indanones (38 examples in total) with generally good yields (up to 95%) and excellent stereoselectivity (>19 : 1 Z / E ratio) by employing enynones diaryl selenides as starting materials under photosensitizer‐free conditions. The reaction mechanism involves a cascade process comprising homolytic cleavage, radical addition, 5‐ exo ‐ dig cyclization, capture, enabling sequential formation multiple bonds, such C(sp 3 )‐Se, )‐C(sp 2 ), )‐Se rapidly construct molecular complexity. Notably, this approach demonstrates wide substrate compatibility tolerability towards various functional groups. It is further characterized its remarkable efficiency creating chemical bonds achieving high atomic utilization 100%.

Язык: Английский

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Red Light and Supersilane: A Novel Pathway for Hydrofunctionalizations and Giese Reactions

ACS Organic & Inorganic Au, Год журнала: 2025, Номер unknown

Опубликована: Май 10, 2025

Язык: Английский

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