Ultrasound effect on the synthesis of 4-alkyl-(aryl)aminobenzaldehydes
作者:Peter Magdolen、Mária Mečiarová、Štefan Toma
DOI:10.1016/s0040-4020(01)00403-3
日期:2001.5
The sonochemical nucleophilic aromatic substitutions on 4-fluorobenzaldehyde with different azacycloalkanes and azoles have been studied. A beneficial ultrasound effect was observed, reactions were clean and high yields of the products were isolated after 15 min sonication.
utilized in various fluorescence imaging techniques. However, many existing modification strategies could not balance the performance (such as brightness, photostability, water solubility, and permeability) of fluorophores. Herein we report a general strategy to enhance the performance of donor–acceptor-type fluorophores by introducing azetidine-containing heterospirocycles to the commonly used fluorophore