Umape, Prashant G. published the artcileSynthesis and characterization of novel yellow azo dyes from 2-morpholin-4-yl-1,3-thiazol-4(5H)-one and study of their azo-hydrazone tautomerism, Name: Morpholine-4-carbothioamide, the publication is Dyes and Pigments (2013), 99(2), 291-298, database is CAplus.
Novel yellow azo dyes were synthesized by diazotization of aromatic amines followed by coupling with 2-morpholin-4-yl-1,3-thiazol-4(5H)-one and fully characterized. The geometries of the synthesized dyes for azo and hydrazone tautomeric forms were optimized using B3LYP, CAM-B3LYP and M06 functional and 6-31G(d) and 6-311++G (d,p) basis sets, also their electronic excitation properties were evaluated using d. functional theory. The optimized geometries reveal that the hydrazone for is more stable than the azo form. Photophys. properties of the synthesized dyes were evaluated by UV-Visible spectroscopy and compared with computed vertical excitation obtained from TDDFT. The results clearly illustrate existence of dye 8a, 8b and 8c in hydrazone tautomeric form, while 8d exist in both azo as well as hydrazone form. Thermal stabilities were estimated by using thermo gravimetric anal., and results revels that the synthesized dyes have good thermal stability.
Dyes and Pigments published new progress about 14294-10-1. 14294-10-1 belongs to amides-buliding-blocks, auxiliary class Morpholine,Thiourea,Amine,Amide, name is Morpholine-4-carbothioamide, and the molecular formula is C20H19NO4, Name: Morpholine-4-carbothioamide.
Referemce:
https://en.wikipedia.org/wiki/Amide,
Amide – an overview | ScienceDirect Topics