摘要
本文介绍了合成α－和β－紫罗兰酮的原理和改进方法。该法与传统的合成方法在反应温度、碱液浓度、催化剂等各方面都作了系列比较和筛选，尤其是环化过程采用特殊溶剂Ａ与Ｂ，可使两种紫罗兰酮在纯度、产率方面都有显著的提高。
This paper describes the principle of synthesising α-and-β-Ionone, and presents an improved method, which can greatly indrease the purity and yield of lononewhen two special solvents, A and B, are added in the process of cyclization. Themethod was compared with traditional methods in the temperature, basic concentrationand catalyst of reaction.
