An article A combined experimental and DFT investigation of mono azo thiobarbituric acid based chalcone disperse dyes WOS:000600374200002 published article about CHEMICAL-REACTIVITY; DESCRIPTOR in [Omar, Alaa Z.; Mahmoud, Mona N.; El-Sadany, Samir K.; Hamed, Ezzat A.; El-atawy, Mohamed A.] Alexandria Univ, Fac Sci, Chem Dept, PO 426 Ibrahemia, Alexandria 21321, Egypt; [El-atawy, Mohamed A.] Taibah Univ, Fac Sci, Chem Dept, Yanbu 46423, Saudi Arabia in 2021, Cited 49. SDS of cas: 123-11-5. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5
A number of monoazo dyes were synthesized by the reaction of 4-aminoacetophenone with different substituted benzaldehydes to give a new series of chalcone derivatives. The diazonium salts of these chalcones then allowed to react with thiobarbituric acid to produce the appropriate azo dye. The structures of the newly synthesized dyes were assigned by IR, NMR spectral data. IR study confirmed the existence of azo-dioxothioxo tautomer in the solid phase while H-1 NMR study indicated the predominance of azoenol-oxothioxo or hydrazo-dioxothioxo tautomers. The geometries of the azo and hydrazo tautomeric forms and their electronic absorption of the dyes were optimized at B3LYP/6-311G level of theory. All the azo compounds were evaluated for their dyeing performance on polyester fibers, and PET. All the synthesized dyes gave moderate to excellent fastness properties on PET fiber. The effects of the nature of the substituents on the color and dyeing properties of these dyes have been evaluated. The mechanism of dyeing polyester fiber was discussed.
About 4-Methoxybenzaldehyde, If you have any questions, you can contact Omar, AZ; Mahmoud, MN; El-Sadany, SK; Hamed, EA; El-atawy, MA or concate me.. SDS of cas: 123-11-5
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,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles