关键词: 邻甲酚型Mannich碱, 抗爆性能, 汽油抗爆剂

Abstract: The situation of gasoline antiknock additives and the reasons of phenol type Mannich base as gasoline antiknock additives were discussed.Mannich bases were synthesized.The results of phenol type Mannich bases used as gasoline antiknock additives showed that these kinds of Mannich base compounds possessed good oil solubility and better antiknock ability.The RON of straight-run gasoline and 90^# motor petrol with 5％(vol) of CPC₁₁2［2,4-di(dimethylaminomethyl)o-methylphenol］ could be increased by 9.7 units and 2.6 units . They had no corrosion on metal and they could be used as gasoline antiknock additives. Among all the studied Mannich bases，CPC₁₁2 had good prospect of application.

Key words: 邻甲酚型Mannich碱, 抗爆性能, 汽油抗爆剂