1.The yield of the pseudoionone and ionone was 96. 2% and 97. 6% respectively.
反应条件温和,周期短,缩合反应的产率达96.2%,环化反应的产率达97.6%.
2.The review summarizes the methods of synthesis of keto-ionone by allylic oxidation of α-and β-ionones,which can be divided into five categories with different oxidation.