img
Synthesis and absorption spectra of some novel hetaryldisazocalix 4 arene derivatives        
Yazarlar
Prof. Dr. İzzet ŞENER Prof. Dr. İzzet ŞENER
Pamukkale Üniversitesi, Türkiye
Kadifeli Fikriye
Özet
In this study, a convenient method for the synthesis of thirteen novel disazo dyes containing 25,26,27-tribenzoyloxy-28-hydroxycalix[4]arene have been described. 5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetrahydroxycalix[4]arene, 25,26,27,28-tetrahydroxycalix[4]arene and 25,26,27-tribenzoyloxy-28-hydroxycalix[4]arene were synthesised based on previously published literature. 2-Arylhdrazone-3-ketiminobutyronitriles were synthesised and reacted with hydrazine hydrate to afford the corresponding 5-amino-4-arylazo-3-methyl-1H-pyrazoles. Thirteen novel hetaryldisazocalix[4]arene derivatives were achieved by diazotisation of 5-amino-4-arylazo-3-methyl-1H-pyrazoles using nitrosylsulphuric acid, coupled with 25,26,27-tribenzoyloxy-28-hydroxycalix[4]arene. The obtained hetaryldisazocalix[4]arene dyes were characterised based on Fourier Transform-infrared, proton nuclear magnetic resonance and mass spectroscopic techniques, as well as elemental analysis. The solvatochromic behaviour of these dyes in various solvents was examined. Acid-base effects on the visible absorption maxima of the dyes were also reported. © 2011 The Authors. Coloration Technology © 2011 Society of Dyers and Colourists.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı COLORATION TECHNOLOGY
Dergi ISSN 1472-3581
Dergi Tarandığı Indeksler SCI
Makale Dili İngilizce
Basım Tarihi 12-2011
Cilt No 127
Sayı 6
Sayfalar 404 / 410
Doi Numarası 10.1111/j.1478-4408.2011.00337.x
Makale Linki http://doi.wiley.com/10.1111/j.1478-4408.2011.00337.x