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Affiliation of Author(s):

化学与化工学院

Journal:

Bull. Korean Chem. Soc

Key Words:

中文关键字：合成；一甲川菁染料；喹啉；紫外；荧光，英文关键字：Synthesis; Monomethine cyanine dyes; Quinoline nuc

Abstract:

An improved method for the preparation of monomethine cyanine dyes with quinoline nucleus by one-pot three-component using 1-methyl-2-quinolinethione, quaternized 2- or 4-methylheterocyclic compounds andmethyl p-toluenesulfonate as starting materials was described. Compared with the traditional methods, the newsynthetic method reduced the reaction steps, shortened the reaction time, avoided the separation andpurification of the intermediate and reduced cost. The dyes absorbed in the region 478.0-563.0 nm and hadmolar extinction coefficients of 1.3 × 104-9.4 × 104 L/mol cm. Their fluorescence maxima and Stokes shifts were in the range of 525.2-594.4 nm and 16.2-80.6 nm in different solvents, respectively. From the spectral properties of the dyes in different solvents, it could be found that the λmaxof the dyes were shorter in protonic solvents, and showed hypsochromic shifts with the increase of polarity of the solvents.

Note:

付义乐

Co-author:

B.R.Zhang,S.Wang,X.X.GaoL.Y.Wang

First Author:

fuyile

Indexed by:

Journal paper

Volume:

卷：34

Issue:

期：2

Page Number:

页：489

Translation or Not:

no

Date of Publication:

2013-09-01