Synthesis and absorption spectra of some novel hetaryltetrakisazocalix[4]arene derivatives

Şener, İzzet; Şener, Nesrin; Erişkin, Selinay

doi:10.1016/j.dyepig.2012.08.015

Cited by 6 publications

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“…A new class of chromogenic disazocalix[4]arene compounds on the lower rim was studied in this work. Many studies deal with upper rim functionalized calixarenes by the azo (–N═N–) group . For this reason, the synthesis of azocalix[4]arenes, which has a conjugated chromophore azo (–N═N–) group on the lower rim, is described and characterized with Fourier transform infrared and 1 H‐NMR in this article.…”

Section: Introductionmentioning

confidence: 99%

Novel Disubstituted Calix[4]arenes Containing Chromogenic Groups on the Lower Rim: Synthesis, Structural Identification, and Absorption Properties

Şener

Erişkin

Gür

et al. 2018

Journal of Heterocyclic Chem

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in Wiley Online Library (wileyonlinelibrary.com). 5,11,17,26,27,26,27, arene were synthesized based on previous literature. Firstly, several azo dyes were synthesized, and then, these dyestuffs were chlorinated through reaction with thionyl chloride. Secondly, the azo compounds bonded with methylene chloride and reacted with 25,26,27,28-tetrahydroxycalix[4]arene, and then, six novel disazocalix[4]arene derivatives 4(a-f) were achieved. Their structures were characterized as Fourier transform infrared, 1 H-NMR, and elemental analysis. In this study, we investigated the solvatochromic properties of the compounds and the acid-base effect on their ultraviolet-visible absorption by using six solvents.

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Section: Introductionmentioning

confidence: 99%