(4-Aryldiazenil)anilinlerin Karışık Skuarat Türevlerinin Sentezi, Karakterizasyonu ve Bazı Spektroskopik Özellikleri

Yıl 2019, Cilt: 12 Sayı: 1, 191 - 201, 24.03.2019

Fatih Eyduran , Melih Ünsal Gözde Bodur

https://doi.org/10.18185/erzifbed.440483

Öz

Primer aromatik azo-aminlerin, dietoksiskuarat
(DES) ile yer değiştirme tepkimesi sonucu;  olası ürünlerden tekli yer değiştirme ürünü olan
(bileşik M ve G) karışık skuaramatlar (MSA’lar) sentezlendi. Bileşikler M ve
G’nin kimyasal yapıları spektroskopik yöntemler (¹H-NMR, FTIR) ve
mikro element analizi kullanılarak aydınlatıldı. Ayrıca bileşiklerin çeşitli
çözücüler içinde UV-Görünür bölge absorpsiyon spektrumları da elde edildi.  Bileşik G’nin ¹H-NMR spektrumunda,
etil grubu protonlarının sinyallerinde, syn/anti rotamer oluşumundan
kaynaklanan bir bozulma gözlenmektedir. Bileşik M’in kloroform ve DMSO içindeki
UV-Görünür bölge absorpsiyon spektrumlarından belirlenen λ_mak değerleri,
p-Aminoazobenzen’in karşılık gelen değerleri ile karşılaştırıldığında, bileşik
M’in 2-etoksi-3,4-dion-1-siklobütenil grubunun bu çözücüler içinde sırasıyla
14.5 ve 15 nm’lik hipsokromik kaymaya neden olduğu görülebilir. Spektroskopik
veriler, bileşikler M ve G’nin kullanılan çözücüler içinde enamin-diketo formda
bulunduğunu göstermektedir.  

Anahtar Kelimeler

Azo, skuarat

Kaynakça

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