85349-83-3Relevant academic research and scientific papers
Pyrimidines. Part 53. Novel Ring Transformation induced by the Substituent Effect of the Phenyl Group. Reaction of 5-Bromo-6-methyl-1-phenyluracil Derivates with Amines and Hydrazine to give Hydantoins and Pyrazolones
Hirota, Kosaku,Banno, Kazuo,Yamada, Yoshihiro,Senda, Shigeo
, p. 1137 - 1142 (2007/10/02)
Reaction of 5-bromo-6-methyluracil derivates (1), possessing a phenyl or para-substituted phenyl group at the 1-position of the uracil ring, with methylamine or hydrazine hydrate causes novel ring transformations to give 1-arylhydantoins (2) and 4-ureidop
DOUBLE RING-TRANSFORMATION OF URACILS TO PYRAZOLONES VIA HYDANTOIN RING SYSTEM
Hirota, Kosaku,Yamada, Yoshihiro,Haruta, Jun-ichi,Senda, Shigeo
, p. 2309 - 2312 (2007/10/02)
Hydrazinolysis of 3-alkyl-1-aryl-5-bromo-6-methyluracil derivatives (1) causes a novel double ring-transformation to pyrazolones (2) via hydantoin ring system.
