微波辐射下乙酸异戊酯合成条件研究

Synthesis Conditions of Isopentyl Acetate under Microwave Irradiation

关键词:  乙酸异戊酯  微波辐射  SO₄^2-/TiO₂固体超强酸  合成

Key words:  isopentyl acetate  microwave irradiation  solid superacid SO₂-4/TiO₂  synthesis

摘要:

在微波辐射下,以SO₄^2-/TiO₂固体超强酸为催化剂合成乙酸异戊酯。最佳反应条件是:乙酸和异戊醇的摩尔比为1:2.0,催化剂用量为1.5g,微波输出功率为729W,反应时间为12min。在此反应条件下,乙酸的酯化率为94.7%,产品收率为89.7%。

Abstract:

The synthesis conditions of isopentyl acetate are studied in the presence of solid superacid SO₂-4/TiO₂ as catalyst under microwave irradiation.The best conditions are as follows:the mole ratio of acetic acid and 3-Methyl-1-butanol is 1:2 (mol:mol),the amount of catalyst is 1.5 g,irradiation power is 729 W,the reaction time is 12 min.Under the above conditions,94.7% of acetic acid is converted,the yield chloroacetates is 89.7%.