The parent barbituric acid and 2-thiobarbituric acid are convenient starting compounds for the preparation of different fused heterocycles and 5-substituted derivatives which are pharmacologically one of the most important classes of barbituric acid based compounds. The fused compounds of barbituric and thiobarbituric acid 7-(4-aminophenyl)-5-aryl5H-pyrano [2, 3-d] pyrimidinone, 5a-f have been ...

The titular compound was characterized for the first time using a full range of spectroscopic methods, including UV, IR, 1H, and 13C NMR spectra. In solution, all methods showed keto–enol equilibrium strongly shifted to enol form. X-ray structures determined simple 2-oxosuccinates only form packed as hydrogen-bonded dimer stacks.

This study was designed to determine the optimal aging conditions after analyzing physicochemical and microbiological properties of dry-aged chicken breast using an electric field supercooling system (EFSS). Chicken aged for up 5 weeks at three different temperatures (0, -1, -2℃). Aging trimming loss -2℃ treatment showed lower values than 0 -1℃ treatments. Thiobarbituric acid reactive substance...

synthesis and characterization of 6-(hydroxymethyl)-14, 16-dimethyl-13, 14, 16, 17-tetrahydro-6h-13, 17-epiminodibenzo [e, l] [1, 4] dioxacyclotridecin-15 (7h)-oneabstractnew 6-(hydroxymethyl)-14, 16-dimethyl-13, 14, 16, 17-tetrahydro-6h-13, 17-epiminodibenzo [e, l] [1, 4] dioxacyclotridecin-15 (7h)-one (2a) was synthesized in good yield by the petrenko–kritchenko reaction of 2, 2'-((3-hydroxyp...

A novel tri-n-butyl(IV) derivative of 2-thiobarbituric acid (HTBA) of formula [(n-Bu)(3)Sn(TBA) H(2)O] (1) has been synthesized and characterized by elemental analysis and (119)Sn-NMR and FT-IR spectroscopic techniques. The crystal structure of complex 1 has been determined by single crystal X-ray diffraction analysis at 120(2) K. The geometry around Sn(IV) is trigonal bipyramidal. Three n-buty...