Open AccessPreparation and Diagnosis of New Azo - Barbiturate Dyes
Author(s) -
Ali Ghazi Kazim,
Abdullah Jawad Kadhim
Publication year - 2018
Publication title -
journal of advance research in applied science
Language(s) - English
Resource type - Journals
ISSN - 2208-2352
DOI - 10.53555/nnas.v5i12.575
Subject(s) - barbituric acid , hypsochromic shift , chemistry , barbiturate , phenol , steric effects , ring (chemistry) , photochemistry , organic chemistry , fluorescence , psychology , physics , quantum mechanics , psychiatry
The research includes the preparation of new azo-barbiturate dyes derived from shiff bases prepared by reaction Barbituric acid & phenlenediamine and repellency bases by means of double-reaction of repellant bases with different phenolic compounds. These compounds were diagnosed using infrared techniques, ultraviolet-visible radiation, NMR proton and thin layer chromatography. All barbiturate dyes had absorption between (273 – 310) nm and showed hypsochromic shift from the corresponding azo dyes. The crystal structures of barbiturate dyes indicated that barbiturate ring is sterically hindered by phenol rings .