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Synthesis of Green/Blue Light Emitting Quinolines by Aza-D-A Reaction Using InCl3 Catalyst.

ABSTRACT: An efficient InCl3-catalyzed sequential reaction of aromatic amines, aromatic aldehydes and functionalized alkynes leading to the formation of new quinoline derivatives exhibiting significant fluorescence activities is described. The photophysical investigations of quinolines were carried out by absorption and photoluminescence measurements. One particular compound 4 h having maximum intensity, emitting green colour (??=?0.78) with average life time of 6.20 ns was the best amongst the tested compounds. The presence of the amino group at the 4-aryl substituent of the quinoline backbone played an important role in executing the Povarov cyclization successfully and enhancing the flourescence properties of the newly synthesized quinolines.

SUBMITTER: Singh RR

PROVIDER: S-EPMC7679117 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature

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Synthesis of Green/Blue Light Emitting Quinolines by Aza-D-A Reaction Using InCl<sub>3</sub> Catalyst.

Singh Rajkumar Romeshkumar RR Singh Thokchom Prasanta TP Singh Ningthoujam Premananda NP Naorem Shanta Singh SS Singh Okram Mukherjee OM

Journal of fluorescence 20201120 1

An efficient InCl<sub>3</sub>-catalyzed sequential reaction of aromatic amines, aromatic aldehydes and functionalized alkynes leading to the formation of new quinoline derivatives exhibiting significant fluorescence activities is described. The photophysical investigations of quinolines were carried out by absorption and photoluminescence measurements. One particular compound 4 h having maximum intensity, emitting green colour (Φ = 0.78) with average life time of 6.20 ns was the best amongst the ...[more]

PMID: 33219402

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