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Synthesis and evaluation of some new oxazolones and imidazolones as antioxidant additives for Egyptian lubricating oils

✍ Scribed by Ahmed El-Mekabaty, Osman M. O. Habib, Hussein M. Hassan, Evelin B. Moawad


Book ID
118004910
Publisher
China University of Petroleum (Beijing)
Year
2012
Tongue
English
Weight
552 KB
Volume
9
Category
Article
ISSN
1672-5107

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## Abstract Pyrimidine‐5‐carboxylate derivative Ia was utilised as a key intermediate for the synthesis of new pyrimidine derivatives. Thiopyrimidine derivative Ia undergo __N__‐methylation using methyl iodide afforded III. Methylsulfanyl moiety in II was easily removed when reacted with phenyl hyd