Exploring Eosin Y as a Bimodular Catalyst: Organophotoacid Mediated Minisci-Type Acylation of N-Heteroarenes

2022 ◽  
Author(s):  
Vishal Jyoti Roy ◽  
Partha Pratim Sen ◽  
Sudipta Raha Roy
Keyword(s):  
Eosin Y ◽  
Acylation Reaction

Here we report the Eosin Y as a bimodular catalyst for Minisci-type acylation reaction. The formation of an organic exciplex between photoexcited Eosin Y and N-heteroarene was found to be...

Rhodamines as Photocatalyst in Organic Synthesis

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.

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

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.

A renewable photocatalytic system with dramatic photocatalytic activity for H2 evolution and constant light energy utilization: Eosin Y sensitized ZnWO4 nanoplates loaded with CuO nanoparticles

2021 ◽  
Author(s):  
Xiaoluo Bao ◽  
Xiaokun Wang ◽  
Xiangqing Li ◽  
Lixia Qin ◽  
Taiyang Zhang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Light Intensity ◽  
Incident Light ◽  
Cuo Nanoparticles ◽  
Energy Utilization ◽  
Limited Attention ◽  
Eosin Y ◽  
H2 Evolution ◽  
Incident Light Intensity ◽  
Photocatalytic System

It is necessary for the commercialization of sunlight-driven H2 evolution to develop an efficient photocatalytic system whose energy utilization is independent on incident light intensity. Unfortunately, limited attention has been...

Friedel-Crafts acylation reaction over hierarchical Y zeolite modified through surfactant mediated technology

2021 ◽  
pp. 111167
Author(s):  
Angela Martins ◽  
Vera Neves ◽  
João Moutinho ◽  
Nelson Nunes ◽  
Ana P. Carvalho
Keyword(s):  
Y Zeolite ◽  
Acylation Reaction

Application of Activated Bentonite Impregnated with PdO as Green Catalyst for Acylation Reaction of Aromatic Compounds

2021 ◽  
pp. 105508
Author(s):  
Yehezkiel Steven Kurniawan ◽  
Arif Cahyo Imawan ◽  
Yoeretisa Miggia Stansyah ◽  
Tutik Dwi Wahyuningsih
Keyword(s):  
Aromatic Compounds ◽  
Acylation Reaction ◽  
Green Catalyst ◽  
Activated Bentonite

ChemInform Abstract: FORMATION OF CARBOXONIUM SALTS DURING ACYLATION OF ALKENES BY ACYLIUM SALTS AND SOME PROBLEMS OF THE ACYLATION REACTION MECHANISM

1978 ◽  
Vol 9 (29) ◽  
Author(s):  
O. V. LYUBINSKAYA ◽  
V. A. SMIT ◽  
A. S. SHASHKOV ◽  
V. A. CHERTKOVA ◽  
M. I. KANISHCHEV ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Acylation Reaction
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