【作者】 靳焜； 王辉； 彭勤纪；

【Author】 JIN Kun Wang Hui PENG Qinji (Dalian University of Technology,State Key Laboratory of Fine Chemicals,Dalian 116012)

【机构】 大连理工大学化工学院精细化工国家重点实验室；

【摘要】 <正>甲基苯并三氮唑的甲基有两种取代位置,分别为α位和β位。当用它与甲醛缩合后得到二聚体,此二聚体可进一步与胺类反应制备高级润滑油添加剂。在二聚体中甲基则有αα, αβ及ββ三种构型。这三种构型的相对含量对添加剂的性能有重要影响。本文采用¹H, ¹³C,gCOSY,gHSQC 和 gHMBC 等二维谱完成了α-和β-甲基苯并三氮唑单体及其二聚体更多还原

【Abstract】 The α-and β-methyl-benzotriazoles and their dimmers can react with amines further to produce lubricant additives.The conformation and composition have important influence to the property as the additives.The monomers and their dimmers have been identified by ¹H,¹³C NMR,gCOSY, gHSQC and gHMBC two-dimensional spectra.The NMR absorption bands were assigned.It is approved that the chemical shifts of both ¹H and ¹³C NMR bands for one side of the dimmers are influenced by the conformation of the other side via CH₂ group.The two monomers and three dimmers can be quantitatively analyzed.The results of α-isomer:41.1% and β-isomer:58.9% for methyl-benzotriazoles;α α-dimer:7%,α β-dimer:49% and β β-dimer:44%.更多还原