PPY催化合成乙酸沉香酯

Studies on Synthesis of Linalyl Acetate by Using 4-Pyrrolidino pyridine(PPY) as Catalyst

利用吡啶与二氯亚砜反应 ,制成双吡啶盐 ,进而与四氢吡咯反应 ,一步法合成 4 ( 1 四氢吡咯 )吡啶(PPY)。利用PPY为催化剂进行沉香醇的酰化反应 ,并对影响反应的诸因素进行了讨论 ,醇的转化率为 99% ,酯的收率为 88.2 %。

Pyrrolidino pyridine(PPY) was prepared by transformation of pyridinium dichloride(easily obtained by reaction of thionyl chloride with pyridine)with pyrrolidine in chlorobenzene.By using PPY as catalyst,linalyl acetate was prepared.Experimental parameters were discussed.The transformation ratio of linalool is about 99%.The yield of linalyl acetate is above 88.2%.