Three-step pathway towards bis(1,2,3-triazolyl-γ-propylsilatranes) as Cu2+ fluorescent sensor, via ‘Click Silylation’
作者:Gurjaspreet Singh、Jandeep Singh、Satinderpal Singh Mangat、Aanchal Arora
DOI:10.1016/j.tetlet.2014.03.043
日期:2014.4
A series of substituted aniline derivatized bis(1,2,3-triazolyl-gamma-propylsilatranes) 3a-3f were designed in good yield from their triethoxysilane analogues via Cu(I) 'Click Silylation'. All the silatranes 3a-3f were characterized by IR, NMR (H-1, C-13) and HRMS studies. All these compounds were explored for their thermal stability by thermogravimetric analysis (TGA)/differential thermal analysis (DTA)/differential scanning calorimetry (DSC) study and electronic properties by UV-vis spectroscopy and fluorescence study. The binding of silatranes 3a-3f to Cu2+ ion proves them to be good chemosensor. These silatranes were subjected to time dependent hydrolysis under normal atmospheric conditions. IR spectroscopic data support hydrolytic instability of 3a, 3c and 3e. (C) 2014 Elsevier Ltd. All rights reserved.