A New Half-Condensed Schiff Base Compound: Highly Selective and Sensitive pH-Responsive Fluorescent Sensor

作者：Saha Uday Chand; Dhara Koushik^*; Chattopadhyay Basab; Mandal Sushil Kumar; Mondal Swastik; Sen Supriti; Mukherjee Monika; van Smaalen Sander; Chattopadhyay Pabitra

来源：Organic Letters, 2011, 13(17): 4510-4513.

DOI：10.1021/ol201652r

A new probe, 3-[(3-benzyloxypyridin-2-ylimino)methyl]-2-hydroxy-5-methylbenzaldehyde (1-H) behaves as a highly selective fluorescent pH sensor in a Britton-Robinson buffer at 25 degrees C. The pH titrations show a 250-fold increase in fluorescence intensity within the pH range of 4.2 to 8.3 with a pK(a) value of 6.63 which is valuable for studying many of the biological organelles.

• 出版日期2011-9-2