کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
177548 458988 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and spectroscopic characterization of 4-carboxyl-2,6-dinitrophenylazohydroxynaphthalenes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Synthesis and spectroscopic characterization of 4-carboxyl-2,6-dinitrophenylazohydroxynaphthalenes
چکیده انگلیسی

A series of azo dyes was prepared by the reaction of 4-carboxyl-2,6-dinitrobenzene diazonium ion (CDNBD) with two naphthols and three substituted naphthalene ether derivatives. UV, IR, 1H, 13C and 2D-NMR spectroscopy as well as mass spectral analyses were used to establish the structure of the new azo dyes.α-Naphthol and its ether gave para-substituted azo dyes while β-naphthol and its ethers provided ortho-substituted dyes. Dealkylation of the naphthalene ether linkage was found to occur upon coupling with the diazonium ion, to form the corresponding naphthol in the final azo product.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 77, Issue 1, 2008, Pages 111–117
نویسندگان
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