Synthesis and Photoluminescence Behavior of π-Conjugated 3-Substituted Isoquinoline Derivatives

Author(s): Qiufei Hou, Jiajie Wu, Jiemei Liang, Hongfu Liu, Yuqing He, Rui Zhang, Hua Cheng*, Cheng Chen*, Dayong Peng*

Journal Name: Current Organic Chemistry

Volume 24 , Issue 13 , 2020

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Abstract:

In this work, a series of π-conjugated isoquinoline derivatives, bearing diverse aryl groups at the 3-position, were synthesized in a facile and straightforward manner. A Pdcatalyzed protocol, the Suzuki-Miyaura coupling of 3-bromoisoquinoline and different aryl boronic acids, was applied, and the structures of the resulting target compounds were determined by 1H-NMR, 13C-NMR, and HRMS. Furthermore, the photophysical properties of these compounds were investigated. Distinct halochromic properties were revealed for them, which exhibited UV emissions in ethanol but visible emissions in an acidic solution.

Keywords: Halochromic, isoquinoline derivatives, luminescence, photophysics, Suzuki-Miyaura coupling, protonated.

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Article Details

VOLUME: 24
ISSUE: 13
Year: 2020
Page: [1517 - 1526]
Pages: 10
DOI: 10.2174/1385272824999200622112718
Price: $95

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