离子型反丁烯二酸单甲酯的合成及抑菌活性研究

Synthesis and Antimicrobial Activity of Ionic Trans-but-2-enedioic Acid Monomethyl Ester

以顺丁烯二酸酐和甲醇为原料合成了反丁烯二酸单甲酯,通过正交试验考察了催化剂的用量、异构化时间及异构化温度对产率的影响。结果表明,反应原料顺丁烯二酸酐与甲醇物质的量比为1.1:1(摩尔比),在60℃下反应1h实现单酯化后,加入10.9%的三氯化铝在80℃下进行转型2h,产率为71.9%。并通过交叉融合法合成了离子型反丁烯二酸单甲酯,用熔点测定法、红外光谱法和NMR对产品进行了鉴定。同时采用比浊法、平板法测定离子型反丁烯二酸单甲酯对细菌、霉菌、酵母的抑菌效果。结果表明离子型反丁烯二酸单甲酯对它们均有较强的抑菌活性,有望开发成为新型抑菌剂。

The reaction conditions between maleic anhydride and methanol were optimized for synthesizing trans-but-2-enedioic acid monomethyl ester (MMF). The results showed that the optimal reaction conditions are as follows: after reaction between maleic anhydride and methanol (molar ratio 1.1:1) at 60℃ for 1 hour,adding 10.9% of aluminium chloride into the product and then maintaining the mixture at 80℃ for 2 hours. After 2 hours,71.9% yield of MMF can be obtained. Ionic trans-but-2-enedioic acid monomethyl ester w...