摘要
本文研究了香叶醇和橙花醇的合成方法。香叶醇和橙花醇的合成是以月桂烯为原料,月桂烯可由脂松节油中的β-蒎烯热异构而得到。在催化剂存在时,月桂烯先经氯化氢加成得加成混合物,主要含有香叶基氯、橙花基氯和少量其他氯化氢加成物,如芳樟基氯和松油基氯。然后再分别地催化转变成它们的乙酸酯。主要产物为香叶酯和橙花酯,两种酯的克分子转化率为50～60％,乙酸香叶酯和乙酸橙花酯的比例约为6:4。在此过程中,研究了温度、溶剂和反应时间对该反应的影响。它们的乙酸酯皂化制得相应的醇,通过高效精馏柱精馏使之分离得纯的香叶醇和橙花醇。香气经调香师评定香气纯正,符合香料的使用要求。
The synthetic route of geraniol and nerol was studied. Myrcene which was obtained from β-pinene in gum turpentine by heat isomerization was used as raw material. In the presence of catalyst, myrcene was treated by addition of HC1 to form an adductive mixture consisting mainly of geranyl chloride and neryl chloride with small amounts of other chlorides such as linalyl chloride and turpenyl chloride present. These then converted separately to their respective acetate esters by treatment with sodium acetate in the presence of a catalyst. The major products are geranyl acetate and neryl acetate. The gr. mol. yield of the acetates was 50-60%, and the ratio of geranyl acetate to neryl acetate in the mixed esters was about 6: 4. Affecting factors as temperature, solvents,catalysts and reaction time were investigated. Saponification of the acetates produced the respective alcohols. Pure geraniol and nerol were separated by rectification on a highly efficient packed column. It has been proved by perfumers that they had better and purer flavor which could meet the requirements for perfume.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
1989年第4期11-19,共9页
Chemistry and Industry of Forest Products
关键词
香叶醇
橙花醇
月桂烯
Β-蒎烯
Geraniol
Nerol
Myrcene
(β-pinene
Gum turpentine
