Visible Light Photocatalyzed Carbon-Heteroatom Bond Formation and Synthesis of Related Compounds

Author(s): Nirmalya Mukherjee, Pintu Maity, Tubai Ghosh, Subir Panja, Brindaban C. Ranu*.

Journal Name: Current Green Chemistry

Volume 3 , Issue 4 , 2016

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Abstract:

Background: In this Chapter an overview on visible light photocatalyzed carbonheteroatom bond formations (C-N, C-O, C-P, C-S/Se/Te etc.) and the synthesis of related compounds by environment friendly approach has been reported. We have discussed visible light photocatalyzed C-N bond formation including amination, imination, azidation, and amidation. Construction of C-O and C-P bond have also been studied by photoredox catalysis under visible light irradiation implicating a novel, powerful and green strategy. Visible light photocatalysis is also useful in the formation of C-S/Se/Te bonds avoiding harsh reaction conditions.

Methods: Moreover, using visible light irradiation the synthesis of many important heterocycles such as N-containing heterocycles (pyridine, quinoline, phenanthridine, dibenzo[a,f]quinolizidine and pyrroles etc), O-containing heterocycles (benzocoumarin, tetrahydrofuran and tetrahydropyran ), P-containing heterocycles (benzo[b]phosphole oxide), N-O-containing heterocycles (oxazole, isoxazole benzoxazole etc), N-S-containing heterocycles (thiazole and benzothiazole) and OS- containing heterocycles (oxathiolane) have been demonstrated.

Conclusion: A series of representative reactions and examples have been provided and in specific cases reaction mechanisms have been discussed for better understanding of the reaction.

Keywords: Visible light photocatalysis, carbon-heteroatom bond formation: synthesis of heterocycles, non-conventional energy source, green approach, O-S-containing heterocycles.

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Article Details

VOLUME: 3
ISSUE: 4
Year: 2016
Page: [279 - 317]
Pages: 39
DOI: 10.2174/2213346104666170130150016
Price: $58

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