4-(Hetarilazoil)anilinlerin Skuaramik Asit Türevlerinin Sentezi ve Karakterizasyonu
Synthesis and Characterization of Squaramic Acid Derivatives of 4-(Hetarilazoil)anilines
Fatih EYDURAN,Mine AYDOĞAN YERLİKAYA
In the study, synthesis of squaramic acids having azo group (compounds 4-6) were carried out in a one-pot. For the synthesis of compounds 4-6, firstly azo dyes bearing the free amine group (compounds 1-3) were obtained by the diazo-coupling method. In this method, the starting compound 3-hydroxy-4-methoxy-cyclobut-3-en-1,2-dione was obtained in the methanol medium as a result of the single substitution of methanol with squaric acid and used in the synthesis of compounds 4-6 without isolation. Compounds 4-6 were synthesized in a one-pot in a low yield in methanol medium as a result of single displacement reaction between compounds 1-3 and 3-hydroxy-4-methoxy-cyclobut-3-en-1,2-dione. Chemical structures of compounds 2, 4, 5, 6 were confirmed by spectroscopic methods (FTIR, NMR). In addition, UV-Vis absorption spectra of compounds 4-6 in different solutions were taken and evaluated. In this synthesis method, it was determined that compound 1 and 2 were selectively substituted with the -OCH3 group of 3-hydroxy-4-methoxy-cyclobut-3-en-1,2-dione compared -OH group.
Aydoğan M, 2107. Siklobürendion içeren yeni azo boyarmaddelerin sentezi ve sprktroskopik özelliklerinin belirlenmesi. Adnan Menderes Üniversitesi Fen Bilimleri Enstitüsü, Yüksek Lisans tezi (Basılmış).