系列长链烷氧基苯甲醛的合成研究

摘要

以长链正烷基醇为原料与氢溴酸作用，合成了长链正烷基溴6个；再与对或间羟基苯甲醛反应，合成了烷氧基苯甲醛9个、间烷氧基苯甲醛8个.由于烷基链长的不同，其产率为70%～94%.考察了催化剂、烷基链长、羟基位置对长链烷氧基甲醛合成的影响.解析了各种产物的红外光谱.%Six n-alkyl bromides have been synthesized with n-alkyl alcohol reacting with hydrobromic acid.Nine p-alkoxybenzaldehydes and eight m-alkoxybenzaldehydes have been synthesized through n-alkyl bromide reacting with p- or m-hydroxylbenzaldehyde.Because the chain length of alkyly is not the same,the yield runs between 70%～94%. And effect of catalyst,chain length of alkyl and the position of hydroxy to synthesis have been checked.IR of all kinds of products have been analyzed.