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Updated: Jun 27, 2026

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
Published on: April 1, 2013
Highly sensitive and selective Pd2+ sensor of naphthalimide derivative based on complexation with alkynes and
Liping Duan1, Yufang Xu, Xuhong Qian
1State Key Laboratory of Bioreactor Engineering and Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai, 200237, China.
Abstract:
A new fluorescent Pd2+ sensor , N-butyl-4-(p-methyloxy)-phenylethynyl-5-thiophenemethylamino-1,8-naphthalimide, was designed and synthesized. It showed highly selective on-off fluorescence changes for Pd2+ among the representative transition and heavy metallic cations, and its fluorescence was efficiently quenched by 5 equivalents of Pd2+ in buffer solution. The sensor also displayed a selective chromogenic behavior toward Pd2+ from yellow to black-red, which could be easily observed by the naked eye.

