Photoreactions of Semi-Stiff-Diarylethenes Based on the Cyclohexenol Motif

Organic Letters, Год журнала: 2024, Номер 26(37), С. 7841 - 7846

Опубликована: Сен. 5, 2024

Nonsymmetric diarylethenes with an additional "stiff" cyclohexenol ring undergo various types of tandem transformations launched by light-induced 6π-photocyclization. Among these, there are two novel reactions (formal [1,3]-H migration and complete aromatization to anthracene derivative) as well photorearrangement formal methane elimination. This diverse reactivity demonstrates the great potential

Язык: Английский

Recent Advancement of 1,2,3,5‐Tetrakis(Carbazol‐9‐yl)‐4,6‐Dicyanobenzene (4‐CzIPN) in Photocatalyzed Synthesis of Heterocyclic Compounds

ChemistrySelect, Год журнала: 2025, Номер 10(17)

Опубликована: Май 1, 2025

Abstract 4‐CzIPN is a traditional electron donor and acceptor fluorophore that uses carbazolyl as an donating dicyanobenzene withdrawing source. Its broad redox potential, high chemical resistance wide applicability makes it unique metal‐free photocatalyst. This study summarizes the recent development of photoredox catalyst for variety heterocyclic construction over last four years (2021‐2024).

Язык: Английский

Visible-light induced Mallory reaction of tertiary benzanilides via iminium intermediates

Chemical Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

The Mallory reaction, which involves the photocyclization of stilbenes/diarylethenes and their analogues into polycyclic aromatics, is significant synthetic importance. However, its application to tertiary benzanilides has not been explored date. Besides, most reported reactions require ultraviolet irradiation. In this study, we show first reaction promoted by visible light

Язык: Английский