林产化学与工业2024，Vol.44Issue(4)：45-50,6.DOI:10.3969/j.issn.0253-2417.2024.04.006
β-水芹烯异构制备α-松油烯的研究
Preparation of α-Terpinene by Isomerization of β-Phellandrene
摘要
Abstract
Acid-catalyzed isomerization of β-phellandrene for the preparation of α-terpinene and relative reaction process were investigated.The results indicated that trimethylsilyl bromide(TMSBr)showed excellent catalytic activity on the isomerizationβ-phellandrene owing to its moderate acidity.However,its catalytic effects on other monoterpenes such as α-pinene,β-pinene,3-carene,limonene and terpinene were limited.The auxiliary agent of 30％(mass fraction)H2O2 greatly improved the reaction efficiency owing to its three characteristics including converting TMSBr to H+to catalyze the isomerization reaction due to the existence of water,dispersing H+to reduce the occurrence of side reactions,and assisting the reaction by its own acidity.The optimal conditions for the preparation of α-terpinene from the isomerization of β-phellandrene were β-phellandrene of 0.1 mol,TMSBr of 0.002 mol,30％H2O2 of 0.1 mol,temperature of 100 ℃,time of 6 h,and the raw material conversion and product selectivity were 88.4％and 94.0％,respectively.关键词
β-水芹烯/α-松油烯/展松松节油/催化异构/三甲基溴硅烷Key words
β-phellandrene/α-terpinene/turpentine from Pinus patula/catalytic isomerization/trimethylsilyl bromide分类
化学化工引用本文复制引用
王婧,陈玉湘,赵振东,李海兵,冯盛..β-水芹烯异构制备α-松油烯的研究[J].林产化学与工业,2024,44(4):45-50,6.基金项目
中国林科院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2022MA003) （CAFYBB2022MA003）
江苏省生物质能源与材料重点实验室项目(JSBEM-S-202205) （JSBEM-S-202205）
