Synthesis of functionalised fluorescent dyes and their coupling to amines and amino acids
作者:Mark S. J. Briggs、Ian Bruce、James N. Miller、Christopher J. Moody、Adrian C. Simmonds、Elizabeth Swann
DOI:10.1039/a605012c
日期:——
A series of novel functionalised benzophenoxazinones,
analogues of Nile Red, is prepared and their fluorescence
properties evaluated. The ring system is prepared by reaction of
5-diethylamino-2-nitrosophenol with 1,6-dihydroxynaphthalene
followed by alkylation of the 2-hydroxy group with
6-bromohexanoic acid derivatives. Subsequent ester cleavage under
a variety of conditions gives the acid 6. Replacement of the
9-diethylamino group with the
N-ethyl-(3-sulfonylpropyl)amino group is carried out to
increase water solubility and the resulting dye 14 has similar
fluorescence properties. The acid 6 is coupled to a range of
amino compounds.
本研究制备了一系列新型功能化苯并恶嗪酮(尼罗河红的类似物),并对其荧光特性进行了评估。该环状系统是通过 5-二乙氨基-2-亚硝基苯酚与 1,6-二羟基萘反应,然后用 6-溴己酸衍生物对 2-羟基进行烷基化而制备的。随后在各种条件下进行酯裂解,得到酸 6。用 N-乙基-(3-磺酰基丙基)氨基取代 9-二乙基氨基可增加水溶性,得到的染料 14 具有类似的荧光特性。酸 6 可与一系列氨基化合物偶联。