Yeni Disazo Boyarmaddelerin Sentezi ve Absorpsiyon Spektrumlarının İncelenmesi
Yazarlar (2)
Prof. Dr. Nesrin ŞENER Kastamonu Üniversitesi, Türkiye
Prof. Dr. Fikret Karcı Pamukkale Üniversitesi, Türkiye
| Bildiri Türü |
Tebliğ/Bildiri
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Bildiri Dili | Türkçe |
| Bildiri Alt Türü | Poster Olarak Sergilenen Tebliğ (Ulusal Kongre/Sempozyum) | ||
| Bildiri Niteliği | Alanında Hakemli Ulusal Kongre/Sempozyum | ||
| Kongre Adı | XXVI. Ulusal Kimya Kongresi | ||
| Kongre Tarihi | 01-10-2012 / 05-10-2012 | ||
| Basıldığı Ülke | Türkiye | Basıldığı Şehir | |
| UAK Araştırma Alanları |
Organik Kimya
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| Özet |
| In the first step of this study, aniline and aniline derivatives were diazotised and coupled with malononitrile, later these compounds were reacted with hydrazine mono hydrate and phenyl hydrazine to give corresponding 3, 5-diamino-4-arylazo-1H-pyrazole (2) and 3, 5-diamino-4-arylazo-1-phenylpyrazole (3) compounds. The second step; 2 and 3 compounds were diazotised again and were coupled with ethylacetoacetate to give corresponding 4-arylazo-3-amino-1H-pyrazole-5-ylazo(4) and 4-arylazo-3-amino-1-phenyl-pyrazole-5-ylazo) etilasetoasetat (7). Later, they were reacted with hydrazine mono hydrate and phenyl hydrazine to give corresponding 4-(4'-arylazo-3'-amino-1H-pyrazole-5'-ylazo)-3-methyl-5-pyrazolone (5), 4-(4'-arylazo-3'-amino-1-phenyl-pyrazole-5'-ylazo)-1-phenyl-3-methyl-5-pyrazolone(6), 4-(4'-arylazo-3'-amino-1-phenylpyrazole-5'-ylazo)-3-methyl-5-pyrazolone (8) and 4-(4'-arylazo-3'-amino-1-phenylpyrazole-5'-ylazo)-1-phenyl-3-methyl-5-pyrazolone (9). The synthesized disazo dyes were characterized by spectral methods. Visible region absorptions of synthesized compounds were examined in terms of various solvent, acid-base and substituent effects. The synthesized disazo dyes were characterized by elemental analysis and spectral methods. The effect of varying solvent upon the absorption ability of dyes substituted with electron-withdrawing and electron-donating groups was examined in detail. |
| Anahtar Kelimeler |
