Synthesis of Fluorescent Probe Sensitive to Amine

Abstract

5-Bromo-2-(5′-bromo-2′-hydroxyphenyl)benzoxazole4is prepared from the Sandmeyer reaction of 5-amino-2-(5′-amino-2′-hydroxyphenyl)benzoxazole3with copper bromide. Two kinds of the(hydroxyphenyl)benzoxazole compounds are investigated for application in fluorescent probe sensing amino compounds and compound4is proved to be more suitable for sensing hexamethylenediamine and hydrazine with different fluorescent colors.