An investigation of the deprotonation of hydrazone-based receptors on interaction with anion: develop a colorimetric system distinguishing cyanide from anions

作者：Cao, Jing^*; Wang, Xiao Meng

来源：Tetrahedron, 2013, 69(48): 10267-10271.

DOI：10.1016/j.tet.2013.10.030

• Hydrazone-based receptor
• Fluorene-skeleton
• Deprotonation
• Reversible
• Color change

Hydrazone-based receptors, containing fluorene-skeleton substituents, in a THF solution, in the presence of fluoride or cyanide, do not only form H-bond complexes, but mainly undergo deprotonation of the N-H fragments, an event, which is signaled by the color change, the ability of the deprotonation is associated with the fluorene skeleton. The deprotonation process is also reversible by the addition of metal ions, while cyanide from fluoride could be distinguished by the addition of copper (II).

• 出版日期2013-12-2
• 单位湘潭大学