α——乙基呋喃甲醇,是合成乙基麦芽酚的中间体。其经由Brennan T·M氯氧化重排反应,即可得到重要的食品添加剂——乙基麦芽酚①。α——乙基呋喃甲醇的合成通常是通过先制备格利雅试剂,进而与糠醛加成水解的方法得到②。本实验采用格氏反应与加成反应的原料同时加入的方法,克服格氏试剂不稳定,易与空气、二氧化碳等副反应的发生。使瞬时产生的格氏试剂立即与糠醛加成,形成稳定的加成产物,从而更有利于工业化生产α——乙基呋喃甲醇。 其合成方法③是,在装有冷凝器、滴液漏斗的反应瓶中,加入镁粉13.6g于乙醚中,加碘一粒,加溴 α - ethyl furan methanol, is the synthesis of ethyl maltol intermediates. By Brennan T · M chlorine rearrangement reaction, can be an important food additive - ethyl maltol ①. The synthesis of α-ethylfurfuryl alcohol is usually obtained by first preparing a Grignard reagent and then hydrolyzing with furfural ②. In this experiment, Grignard reaction and addition reaction of raw materials added at the same time, to overcome the instability of Grignard reagents, easy and air, carbon dioxide and other side effects. So that the instantaneous generation of Grignard reagents and furfural immediately added to form a stable addition product, which is more conducive to the industrial production of α - ethyl furan methanol. The synthesis method is ③, equipped with a condenser, dropping funnel reaction flask, adding magnesium powder 13.6g in ether, add a iodine, add bromine