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

查看全文 作　　者：Ahmed El-[1]Mekabaty;Osman [1]M.O.Habib;Hussein [1]M.Hassan;Evelin [1]B.Moawad

机构地区：[1]Department of Chemistry,Faculty of Science,Mansoura University

出　　处：《Petroleum Science》索引2012年第9卷第3期,共11页

摘　　要：Oxazolone derivative 2 was utilized as a key intermediate for synthesis of some new oxazolone and imidazolone derivatives. Reaction of oxazolone derivative 2 with diamines under different conditions afforded the corresponding imidazolone derivatives 3-8, respectively. Moreover, oxazolone 2 reacted with some heterocyclic amines in glacial acetic acid giving the corresponding imidazolone derivatives 9-14, respectively. Cyclocondensation of thiosemicarbazide with compound 2 in dry pyridine afforded compound 15. Addition of secondary amines to olefin double bond of compound 2 gave the corresponding addition products 16-19, respectively. Michael addition of compound 2 with some active methylene compounds afforded oxazolone derivatives 20-23, respectively. These prepared products were evaluated as antioxidant and corrosion inhibitors for gasoline lubricating oil and compounds 6a-c, 10 and 15 exhibited the highest antioxidant and anticorrosive activities. The effect of concentration of additives was studied to recommend the optimum concentration to be used. The results showed, for additive 15, 0.1 g for 1 L oil was the more effective concentration. Measurements for thermal analysis and of surface tension of oil after oxidation were also carried out. 关键词：咪唑啉酮衍生物亚甲基化合物衍生物合成抗氧化剂产品评价添加剂 MICHAEL加成反应润滑油

相关文献

参考文献（16）
引证文献（1）
耦合文献（0）

参考文献(16)

引证文献(1)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

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

参考文献(16)

引证文献(1)

用户提示