Catalytic Synthesis of Isooctyl Choloroacetate by Solid Super Acid
Zong Wei, Zhang Yadong (Chemical College of Zhengzhou University, Zhengzhou 450001)
Isooctyl choloroacetate was synthesized by choloroacetic acid and isooctanol with our self-made solid super acid as the catalyst. Effects of catalyst amount, ratio of the reaction materials isooctanol and choloroacetic acid, water carrying agent amount and reaction time on esterification were discussed. Results showed that TiO2-SO42- had good catalytic performance, the best reaction conditions were as follows: at the conditions of chloroacetic acid amount 0.15 mol, n(isooctyl alcohol): n(chloroacetic acid)=1.1: 1.0,mass of the catalyst is 1.2% of the total reactants, water carrying agent was 10 mL, reaction time was 2.5 h. Yield of isooctyl chloroacetate reached 98% under such conditions. The catalyst could be recycled 5 times and the yield of isooctyl choroacetate was not reduced obviously.