The application of heterogeneous visible light photocatalysts in organic synthesis

Abstract:: Organic synthesis under environment friendly conditions has great impact in the sustainable development. In this context, visible light photocatalysis has emerged as a green model as this offers an energy-efficient pathway towards the organic transformation. Different transition-metal catalysts (Ir-, Ru-, Cu- etc) and organic dyes (eosin Y, rose bengal, methylene blue etc) are well-known photocatalysts in organic synthesis. Apart from the well-known organophotoredox catalysts, rhodamines (Rhodamine B and Rhodamine 6G) have been also employed as efficient photocatalysts for different organic transformations. In this review, we will focus on the photocatalysis by rhodamines in organic synthesis. Mechanistic pathway of the methodologies will also be discussed. We believe this review will stimulate the employment of rhodamines in the visible light photocatalysis for efficient organic transformations in the future.

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Visible light photocatalysis in synthesis of pharmaceutically relevant heterocyclic scaffolds

Organic Chemistry Frontiers ◽

10.1039/d1qo01602d ◽

2022 ◽

Author(s):

Vishal Srivastava ◽

Pravin Kumar Singh ◽

Shraddha Tivari ◽

Praveen Pratap Singh

Keyword(s):

Natural Products ◽

Visible Light ◽

Chemical Bond ◽

Organic Synthesis ◽

Bond Formation ◽

Visible Light Photocatalysis ◽

Photoredox Catalysis ◽

Chemical Bond Formation

Visible light and photoredox catalysis have emerged as a powerful and long-lasting tool for organic synthesis, demonstrating the importance of a variety of chemical bond formation methods. Natural products, physiologically...

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1.9 Oxygen-Centered Radicals

Free Radicals: Fundamentals and Applications in Organic Synthesis 1 ◽

10.1055/sos-sd-234-00177 ◽

2021 ◽

Author(s):

J. Zhang ◽

D. Liu ◽

Y. Chen

Keyword(s):

Hydrogen Atom ◽

Visible Light ◽

Organic Synthesis ◽

Reactive Intermediates ◽

Radical Addition ◽

Hydrogen Atom Transfer ◽

Reaction Conditions ◽

Recent Advances ◽

Carbon Carbon Bonds ◽

Induced Reaction

AbstractOxygen-centered radicals (R1O•) are reactive intermediates in organic synthesis, with versatile synthetic utilities in processes such as hydrogen-atom transfer (HAT), β-fragmentation, radical addition to unsaturated carbon–carbon bonds, and rearrangement reactions. In this review, we focus on recent advances in the generation and transformation of oxygen-centered radicals, including (alkyl-, α-oxo-, aryl-) carboxyl, alkoxyl, aminoxyl, phenoxyl, and vinyloxyl radicals, and compare the reactivity of oxygen-centered radicals under traditional reaction conditions with their reactivity under visible-light-induced reaction conditions.

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Emerging applications of porous organic polymers in visible-light photocatalysis

Journal of Materials Chemistry A ◽

10.1039/d0ta00364f ◽

2020 ◽

Vol 8 (15) ◽

pp. 7003-7034 ◽

Cited By ~ 17

Author(s):

Tian-Xiong Wang ◽

Hai-Peng Liang ◽

Dejene Assefa Anito ◽

Xuesong Ding ◽

Bao-Hang Han

Keyword(s):

Visible Light ◽

Hydrogen Evolution ◽

Organic Synthesis ◽

Organic Pollutants ◽

Visible Light Photocatalysis ◽

Organic Polymers ◽

Porous Organic Polymers

Porous organic polymers are efficient photocatalysts in organic synthesis, hydrogen evolution, CO2 reduction, and degradation of organic pollutants.

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Excited radical anions and excited anions in visible light photoredox catalysis

Physical Sciences Reviews ◽

10.1515/psr-2017-0185 ◽

2019 ◽

Vol 4 (12) ◽

Cited By ~ 1

Author(s):

Indrajit Ghosh

Keyword(s):

Visible Light ◽

Organic Synthesis ◽

Transition Metal Complexes ◽

Organic Dyes ◽

Visible Light Photocatalysis ◽

Radical Anions ◽

Photoredox Catalysis ◽

Inorganic Semiconductors ◽

Redox Active ◽

Excited Radical

Abstract Over the last decade, visible light photocatalysis has dramatically increased the arsenal of methods for organic synthesis and changed the way we activate molecules for chemical reactions. Polypyridyl transition metal complexes, redox-active organic dyes, and inorganic semiconductors are typically used as photocatalysts for such transformations. This chapter reviews the applications of radical anions and anions as photosensitizers in visible light photoredox catalysis.

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Visible Light Photocatalysis with Supported Metal Nanoparticles for Organic Synthesis

10.5204/thesis.eprints.103567 ◽

2017 ◽

Author(s):

Fan Wang

Keyword(s):

Visible Light ◽

Metal Nanoparticles ◽

Organic Synthesis ◽

Visible Light Photocatalysis ◽

Supported Metal Nanoparticles ◽

Supported Metal

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Recent advances in the syntheses, transformations and applications of 1,1-dihalocyclopropanes

Organic & Biomolecular Chemistry ◽

10.1039/c5ob01088h ◽

2015 ◽

Vol 13 (33) ◽

pp. 8780-8802 ◽

Cited By ~ 26

Author(s):

Amrutha P. Thankachan ◽

K. S. Sindhu ◽

K. Keerthi Krishnan ◽

Gopinathan Anilkumar

Keyword(s):

Organic Synthesis ◽

Wide Spread ◽

New Methods ◽

Recent Advances ◽

Methods Of Synthesis ◽

Synthesis Reactions

gem-Dihalocyclopropanes have wide-spread applications in organic synthesis due to their versatile chemistry. The various new methods of synthesis, reactions and applications of these synthetically useful compounds are described.

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Recent advances of titanium dioxide (TiO2) for green organic synthesis

RSC Advances ◽

10.1039/c6ra22894a ◽

2016 ◽

Vol 6 (110) ◽

pp. 108741-108754 ◽

Cited By ~ 42

Author(s):

Lee Eng Oi ◽

Min-Yee Choo ◽

Hwei Voon Lee ◽

Hwai Chyuan Ong ◽

Sharifah Bee Abd Hamid ◽

...

Keyword(s):

Titanium Dioxide ◽

Visible Light ◽

Organic Synthesis ◽

Water Gas Shift ◽

Water Gas Shift Reaction ◽

Recent Advances ◽

Shift Reaction ◽

Water Gas

This review focuses on the recent development of TiO2 as a catalyst in green organic synthesis including in hydrodeoxygenation, hydrogenation, esterification/transesterification, the water–gas shift reaction, and visible light-induced organic transformation.

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