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Updated: May 20, 2025

Qualitative Identification of Carboxylic Acids, Boronic Acids, and Amines Using Cruciform Fluorophores
Published on: August 19, 2013
Readily Accessible β-Ge-Substituted Amine-Boranes with Enhanced Fluorescence Efficiency
Zi-Long An1, Ao-Xiang Yu1, Dun-Xu Cao1
1Key Laboratory of Precision and Intelligent Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
Abstract:
The hydroboration of 2-pyridyl-substituted alkynylgermanes with 9-borabicyclo[3.3.1]nonane (9-BBN) produces a series of vinylboranes containing N-B coordination. In contrast to their alkynylsilane counterparts, this reaction involves migration of the germyl group. These intramolecular amine-boranes with substitution exclusively at the β-position exhibit significantly strong blue fluorescence and show enhanced fluorescence efficiency compared to previously reported analogues with α-substitution.
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