Synthesis of phenethyl acetate with acidic ionic liquid as catalyst was written by Liu, Xiaoyu. And the article was included in Henan Huagong in 2015.Electric Literature of C10H20N2O4S The following contents are mentioned in the article:
Phenethyl acetate (PEAC) is synthesized by using an acidic ionic liquid n-hexyl-methylimidazolium bisulfate abbreviated as [n-C6Im][HSO4] as catalyst. By studying on the effect of various factors on the conversion rate, the optimal conditions include 1:1.2 2-Ph ethanol/vinyl acetate, the ionic liquid 5wt%, 140°C reaction temperature and 6 h of reaction time, the conversion of PEAC is 91.8%. After the reaction completed, the [n-C6Im][HSO4] could be used for a new synthesis of PEAC. Although the conversion slightly reduced after the [n-C6Im][HSO4] was reused for four times, its catalytic activity could reach to original level by adding suitable sulfuric acid. Compared with classical strong acid catalysts, the reaction system using ionic liquid [n-C6Im][HSO4] as catalyst offers many advantages of good color of PPAE, easy recovery, and reuse of the catalyst. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Electric Literature of C10H20N2O4S).
1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Electric Literature of C10H20N2O4S
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem