3237-50-1Relevant articles and documents
The crystal structure of 5,5-dihydroxybarbituric acid trihydrate.
Mootz,Jeffrey
, p. 717 - 725 (1965)
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Facile synthesis of 1,2,3-tricarbonyls from 1,3-dicarbonyls mediated by cerium(IV) ammonium nitrate
Sivan, Akhil,Deepthi, Ani
supporting information, p. 1890 - 1893 (2014/03/21)
A mild and efficient protocol for the synthesis of vicinal tricarbonyl compounds from β-dicarbonyls in a single step using cerium(IV) ammonium nitrate as a catalytic oxidant is described. Ease of execution, wide substrate scope and the suitability for the synthesis of commercially important compounds like ninhydrin, alloxan and oxoline make this reaction particularly noteworthy.
The sonolysis of uracil
Yu, Tain-Jen,Sutherland, Ronald G.,Verrall, Ronald E.
, p. 1909 - 1915 (2007/10/02)
The sonolysis of uracil (1) has been studied at 630 kHz in the presence of air, oxygen, nitrogen and argon.The degradation products were identified by gc-ms analysis.Under aerated conditions the following products were found: uracil glycols (7), isobarbituric acid (8), N-formyl-N'-glyoxylurea (6), 5-hydroxyhydantoin (9), dialuric acid (10), alloxan monohydrate (12), parabanic acid (13), and oxaluric acid (14).In deaerated solutions 6, 13, and 14 were not observed but either 6-hydroxy-5,6-dihydrouracil (17) or its isomer (18) were detected in addition to 7, 8, 9, 10, and 12.The observed products have been used to develop a possible mechanism for the sonolytic degradation and the results are similar to those obtained in radiolysis.The sonolytic degradation of 5-bromouracil (19) is also reported: the products observed were 5-bromobarbituric acid (20), 12, 13, 14, and 9 and these can be rationalized by a similar mechanism scheme.