597528-45-5Relevant academic research and scientific papers
Synthesis of 5-chloromethylene hydantoins and thiohydantoins
Cernak, Timothy A.,Gleason, James L.
, p. 117 - 134 (2008/02/02)
5-Chloromethylene hydantoins were prepared by condensation of ureas with chloropyruvic acid. 5-Chloromethylene thiohydantoins were prepared by chlorination of dehydroalanines followed by condensation with thiophosgene. Convenient methods for formation of
Hydrolysis of N,N-dimethylenamines. Stereospecific synthesis of their enol and enol ester derivatives
Selic, Lovro,Grdadolnik, Simona Golic,Stanovnik, Branko
, p. 1317 - 1328 (2007/10/03)
Stereospecific conversions of dimethylaminomethylidene group in various (Z)-alkyl 2-[(2,2-disubstituted ethenyl)amino]-3-dimethylaminopropenoates into their hydroxymethylidene and benzoyloxy methylidene derivatives were achieved in moderate to good yields. The difference between pathway to enol esters and (fused)pyrrole-2-carboxylate derivatives is clarified.
Syntheses, addition-eliminations, and addition-displacements of 5-(bromomethylene)hydantoins
Mathur, Naresh C.,Wong, Sau K.,Shechter, Harold
, p. 5141 - 5144 (2007/10/03)
5-(Bromomethylene)hydantoins, prepared from bromopyruvic acid and ureas in the presence of BF3, react with various nitrogen, phosphorus, sulfur, and carbon nucleophiles by addition-elimination to give the corresponding 5-(substituted-methylene)hydantoins. The 5-(bromomethylene)hydantoins also undergo acid-catalyzed reactions with nucleophiles by addition-displacement and addition-elimination processes.
Rhodium acetate catalyzed and thermal reactions of 6-alkoxy-5-diazodihydrouracils
Mathur, Naresh C.,Shechter, Harold
, p. 3799 - 3802 (2007/10/02)
6-Alkoxy-5-diazodihydrouracils are converted by rhodium acetate to 5-(alkoxyrnethylene)- 2,4-imidazolidinediones and thermolyze to 1,2,3-triazole-4-carboxamide derivatives.
