Visible-light-mediated direct synthesis of phosphorotrithioates as potent anti-inflammatory agents from white phosphorus

The reaction of P4 with arylthiols in the presence of Na2–eosin Y under visible light gave phosphorotrithioites. Subsequent oxidation of phosphorotrithioites produced phosphorotrithioates. The phosphorotrithioate 3f presents good inflammation reducing characteristics.

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Combined palladium/eosin Y-catalysed direct synthesis of anticancer biarylquinolinooxazocino-quinoxaline-1-ones under visible light in one-pot sequence: a revisited proof of concept

Monatshefte für Chemie - Chemical Monthly ◽

10.1007/s00706-020-02641-2 ◽

2020 ◽

Vol 151 (7) ◽

pp. 1163-1172

Author(s):

Nilmadhab Roy ◽

Priyankar Paira

Keyword(s):

Visible Light ◽

Direct Synthesis ◽

Eosin Y ◽

Proof Of Concept ◽

One Pot

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Rhodamines as Photocatalyst in Organic Synthesis

Current Green Chemistry ◽

10.2174/2213346107999201026201232 ◽

2020 ◽

Vol 07 ◽

Author(s):

Avik K. Bagdi ◽

Papiya Sikdar

Keyword(s):

Visible Light ◽

Organic Synthesis ◽

Organic Dyes ◽

Transition Metal Catalysts ◽

Visible Light Photocatalysis ◽

Eosin Y ◽

Organic Transformations ◽

The Sustainable Development ◽

Mechanistic Pathway ◽

Green Model

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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Highly chemoselective deoxygenation of N-heterocyclic N-oxides under transition metal-free conditions

Organic & Biomolecular Chemistry ◽

10.1039/d1ob00260k ◽

2021 ◽

Vol 19 (16) ◽

pp. 3735-3742

Author(s):

Se Hyun Kim ◽

Ju Hyeon An ◽

Jun Hee Lee

Keyword(s):

Transition Metal ◽

Visible Light ◽

Eosin Y ◽

Metal Free ◽

Simple Protocol

Here, we provide an operationally simple protocol for the highly chemoselective deoxygenation of various functionalized N-heterocyclic N-oxides under visible light-mediated photoredox conditions with Na2-eosin Y as an organophotocatalyst.

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Visible-Light-Mediated Synthesis of Substituted Phenazine and Phenoxazinone Using Eosin Y as a Photoredox Catalyst

Organic Letters ◽

10.1021/acs.orglett.1c00725 ◽

2021 ◽

Author(s):

Ashish Kumar Dhara ◽

Sayantan Maity ◽

Basab Bijayi Dhar

Keyword(s):

Visible Light ◽

Eosin Y

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Eosin Y photoredox catalyzed net redox neutral reaction for regiospecific annulation to 3-sulfonylindoles via anion oxidation of sodium sulfinate salts

Organic & Biomolecular Chemistry ◽

10.1039/c7ob02977b ◽

2018 ◽

Vol 16 (4) ◽

pp. 536-540 ◽

Cited By ~ 15

Author(s):

Rajendra S. Rohokale ◽

Shrikant D. Tambe ◽

Umesh A. Kshirsagar

Keyword(s):

Visible Light ◽

Eosin Y ◽

Cascade Cyclization ◽

Neutral Reaction ◽

Neutral Process ◽

Radical Cascade

An eosin Y photoredox catalyzed net redox neutral process for 3-sulfonylindoles via the anionic oxidation of sodium sulfinate salts and its radical cascade cyclization with 2-alkynyl-azidoarenes was developed with visible light as a mediator.

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