TiO_2-Sb_2O_3/SO_4^(2-)催化合成紫罗兰酮

Catalytic Synthesis of Ionone in the presence of Solid acid TiO_2-Sb_2O_3/SO_4^(2-)

本文研究了以TiO2-Sb2O3/SO42-为催化剂,催化假性紫罗兰酮合成紫罗兰酮。探索了反应温度、反应时间、催化剂用量、溶剂用量等因素对环化反应的影响。最佳合成条件:6mL假性紫罗兰酮,催化剂用量为1.8g,溶剂用量为6mL,环化反应温度为30℃,反应时间为3.0h,紫罗兰酮产率约为70%。

This paper studied that Ionone was synthesized from pseudoionone in the presence of TiO2-Sb2O3/SO4^2-. We discussed the effect of the reaction conditions such as reaction temperature, reaction time, the amount of catalyst and the amount of solvent. The optimal reaction conditions were as follows： pseudoione 6mL, catalyst 1.8g, solvent （trichloromethane） 6 mL, reaction temperature 30℃ and reaction time 3.0h, the yield of ionone is up to 70%.