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Updated: Sep 14, 2025

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
Published on: April 1, 2013
Solvent-Dependent Photocatalytic Acceptorless Dehydrogenation/Dehydrogenation-Coupling-Aromatization of
Cheng Huang1, Sheng Tang1, Ying Wang1
1School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, Jiangxi P. R. China.
Abstract:
A solvent-dependent acceptorless dehydrogenation and dehydrogenation-coupling-aromatization of N-heterocycles at room temperature have been accomplished by using organophotoredox/cobalt dual catalysis. In the presence of acetone as solvent, the dehydrogenation product (heteroarenes) is obtained in good to high yields, whereas employment of DCE as solvent favors the formation of dehydrogenation-coupling-aromatization product (biheteroarenes). The photochemical reaction highlights noble metal-free, mild reaction conditions, atom economy, and chemo-selectivity. Primary mechanistic studies revealed a reductive quenching process was involved in the organo-photocatalytic cycle.
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