74959-96-9Relevant articles and documents
CHEMISTRY OF OXALYL DERIVATIVES OF METHYL KETONES. XLVI. REACTION OF β-BROMOAROYLPYRUVIC ESTERS WITH UREA
Andreichikov, Yu. S.,Plakhina, G. D.
, p. 789 - 792 (2007/10/02)
The substitution of the bromine atom in methyl β-bromoaroylpyruvates by urea is accompanied by cyclization of the substitution product.Depending on the reaction conditions, this leads either to 6-aroyl-5-hydroxyuracils or to 5-aryl-4-methoxycarbonyl-2,3-dihydro-2-imidazolones.