摘要
以铁次卟啉二甲酯(Fe Cl DPDME)为模型催化剂,在无任何外加溶剂及助剂的条件下,催化氧气氧化α-蒎烯,探讨了反应温度、反应时间、催化剂质量分数以及氧气流速等工艺条件对反应的影响,并对Fe卟啉催化烃类分子氧反应机理进行初步探讨。研究结果表明:氧化主要发生在α-蒎烯双键和烯丙位碳氢键,当反应温度为80℃、反应时间为6 h、催化剂质量分数为50 mg/kg、氧气流速为60 m L/min时,α-蒎烯转化率及主要氧化产物的选择性更高,分别达到17.9%和86.7%。
Ferric deuteroporphyrin dimethyl ester （FeCODPDME） was employed as the model catalyst to investigate the catalytic oxidation of α-pinene by molecular oxygen without any solvent and additive. The influences of temperature, time, catalyst mass ratio and molecular oxygen flow rate on this reaction were investigated. The results showed that the oxidation occurred mainly on C=C bond and allylic C-H bonds of α-pinene. The optimal conditions of this reaction were reaction temperature 80 ℃, reaction time 6 h, catalyst mass ratio 50 mg/kg and molecular oxygen flow rate 60 mL/min, respectively. Under these conditions the conversion rate of a-pinene and the total selectivity of C=C bond and allylic C--H bonds oxidation products reached 17.9 % and 86.7 %, respectively.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2016年第6期23-28,共6页
Chemistry and Industry of Forest Products
基金
国家自然科学基金青年科学基金资助(31600466)
江苏省生物质能源与材料重点实验室基本科研业务费项目(JSBEM-S-201605)
中央级公益性科研院所基本科研业务费专项资金(CAFYBB2014QA022)
关键词
Α-蒎烯
金属卟啉
仿生催化
需氧氧化
α-pinene
metalloporphyrin
biomimetic catalysis
aerobic oxidation
