The advent and development of organophotoredox catalysis

Abstract

In the last decade, photoredox catalysis has unlocked unprecedented reactivities in synthetic organic chemistry. Seminal advancements in the field have involved the use of well-studied metal complexes as photoredox catalysts...

The Nickel Age in Synthetic Dual Photocatalysis: A Bright Trip Toward Materials Science

“…Organic dyes are highly conjugated organic molecules with strong absorption in the visible region and prominent redox character and include compounds such as 9‐mesityl‐10‐methylacridinium (9‐PhAcr), Eosin Y, or 1,2,3,5‐tetrakis(carbozol‐9‐yl)‐4.6‐dicyanobenzene (4CzIPN). They present high stability in solution and excited‐state redox potentials comparable to those of metal‐based PCs, hence making them attractive in photoredox catalysis [62] . Organic dyes have typically an easy preparation, and their spectroscopical and electronic properties are extremely tunable and versatile through synthetic modifications [5,14] .…”

Direct synthesis of triphenylamine-based ordered mesoporous polymers for metal-free photocatalytic aerobic oxidation

“…Although organic photoredox catalysts can address these issues to some extent, the poor photostability and difficulties in catalyst recovery still impose a significant limit on scale-up synthesis. 4 Thus, it is still highly desirable to develop efficient heterogeneous photocatalysts that are free of precious metals, inexpensive, stable, and recyclable, to decrease the processing costs in large-scale synthesis. 5 To this end, nonprecious metal-based semiconductors (such as bismuth-based nanomaterials, 6 metal sulfides, 7 metal oxides, 8 transition metal dichalcogenides, 9 etc. )…”

Combined Power of Organo‐ and Transition Metal Catalysis in Organic Synthesis

“…Also, the combination of organocatalysis with photocatalysis is an emerging area of research. The use of chiral organocatalysis with organometallic photocatalysts allows new synthetic routes to enantioenriched molecules [25–27] …”

“…The use of chiral organocatalysis with organometallic photocatalysts allows new synthetic routes to enantioenriched molecules. [25][26][27] To date, many excellent and comprehensive reviews have been published that focuses on different combinations of metal and organocatalysts. [15][16][17][28][29][30] Considering the wide aspect of the field, this Review exclusively highlights the dual catalytic systems concerned with combining different transition metals with amino-, Brønsted acid, and N-heterocyclic carbene (NHC) catalysts.…”