高纯糠酸晶体的制备及其性能研究

Preparation of Furoic Acid and Its Crystal of High Purity

本文以糠醛为原料通过Ｃａｎｎｉｚｚａｒｏ反应以７４．４％的收率制取了糠酸，反应温度为１２～２５℃．再以糠酸粗产物为原料通过升华法制得高纯糠酸晶体，纯度可达９９．９６％（ＧＣ）；升华温度１０５～１１５℃．并且进一步研究了糠酸及其晶体的制备方法、晶体的构象（通过分子力学计算方法）及其热稳定性（通过热重分析法ＴＧＡ和差热分析法ＤＴＡ）．

The furoic acid was pvepared at a yield of 74.4% from furol by cannizzaro reaction at 12～25℃, and the crystal of high purity (99.96%,GC) was prepared by sublimation of the raw product of furoic acid at 105～115℃. And its configuration, by the method of molecular mechanics and the thermostability by TGA and DTA of the crystal of furoic acid were discussed.