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9-mesityl-10-methylacridinium perchlorate (Mes-Acr-Me+ClO4−) as a novel metal-free donor–acceptor (D–A) photocatalyst: visible-light-induced access to tetrahydrobenzo[b]pyran scaffolds through a single-electron transfer (SET) pathway
Journal
Research on Chemical Intermediates
ISSN
1568-5675
Date Issued
2024-05-20
Author(s)
Farzaneh Mohamadpour
Hesam Kamyab
Shreeshivadasan Chelliapan
Ali Mohammad Amani
Abstract
A green radical synthetic approach for the production of tetrahydrobenzo[b]pyran scaffolds, which utilizes a Knoevenagel–Michael cyclocondensation reaction of aldehydes, malononitrile, and dimedone, has been devised.
This innovative technique has been designed to achieve environmental sustainability. A novel single-electron transfer photocatalyst was employed for the synthesis in an aqueous ethanol solution under an air atmosphere at room temperature and stimulated with blue LED illumination serving as a renewable energy source.
The objective of this undertaking is to cultivate a metal-free donor–acceptor (D–A) photocatalyst that is highly affordable and universally accessible. 9-Mesityl-10-methylacridinium perchlorate (Mes-Acr-Me+ClO4−) is recognized for its expeditious and effortless applicability, high efficiency in yielding products, low energy consumption, and commendable eco-friendliness.
This capability facilitates the investigation into the temporal alterations of environmental and chemical constituents. A research inquiry was conducted with the primary objective of determining the turnover number and turnover frequency associated with tetrahydrobenzo[b]pyran scaffolds.
Furthermore, the attainment of cyclization at a gram-scale level offers substantiation for its feasibility as a viable solution for industrial implementation.
This innovative technique has been designed to achieve environmental sustainability. A novel single-electron transfer photocatalyst was employed for the synthesis in an aqueous ethanol solution under an air atmosphere at room temperature and stimulated with blue LED illumination serving as a renewable energy source.
The objective of this undertaking is to cultivate a metal-free donor–acceptor (D–A) photocatalyst that is highly affordable and universally accessible. 9-Mesityl-10-methylacridinium perchlorate (Mes-Acr-Me+ClO4−) is recognized for its expeditious and effortless applicability, high efficiency in yielding products, low energy consumption, and commendable eco-friendliness.
This capability facilitates the investigation into the temporal alterations of environmental and chemical constituents. A research inquiry was conducted with the primary objective of determining the turnover number and turnover frequency associated with tetrahydrobenzo[b]pyran scaffolds.
Furthermore, the attainment of cyclization at a gram-scale level offers substantiation for its feasibility as a viable solution for industrial implementation.