【摘要】 本文首次报道了用１２－钼钨硅杂多酸催化合成丙酸异成酯，得出了最佳酸醇（ｍｏｌ）比为：１．０５～１．０８：１，反应时间为１．５ｈ，催化剂用量为５～６‰，催化剂的选择性为１００％，且连续使用３０次，活性稍有下降，还考察了带水剂对酯化反应的影响．更多还原

【Abstract】 The synthesis of isoamyl propionate catalyzed by heteropoly 12-molybdotungstosilicis acid catalyst were reported by the first time. The optimum esterify conditions were obtained as follows: acid/alcohol ratio (molar ratio) 1.05-1.08:1, reaction time for 1.5h, consumption of catalyst 5-6‰. The selectivity for catalyst is 100%, it could be reused for at least thirty times without loss of its activity. The influence of aqueous carry over on esterification were also investigated.更多还原