超临界正己烷中松香酸一元醇酯高压氢解还原反应  

Reduction of Monobasic Alcohol Abietate in Supercritical Hexane

作　　者：尹斌[1] 曾韬[1] 王雪源[1] 

机构地区：[1]南京林业大学化学工程学院,江苏省生物质绿色燃料与化学品重点实验室,江苏南京210037

出　　处：《林产化学与工业》2015年第1期51-56,共6页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(30771686);江苏省高校优势学科建设工程项目资助(无编号)

摘　　要：在超临界正己烷条件下,采用Cu-Zn催化剂进行了系列松香酸一元醇酯的氢解还原反应。考察了反应条件对反应结果的影响。结果表明:适宜的工艺条件为松香酯15 g,Cu-Zn催化剂用量为松香酯质量的10%,m(松香酯)∶m(正己烷)为1∶3,温度为270℃,压力10 MPa,反应时间11 h;该条件下松香甲酯、松香丁酯和松香辛酯的转化率分别为87.9%,75.0%和69.9%,选择性分别为93.4%,92.4%和92.8%,得率分别为82.1%,69.3%和64.9%;FT-IR和GC-MS分析结果表明,松香酯经氢解还原反应后酯基被还原为羟基,还原产物主要成分为二氢海松醇、二氢枞醇、四氢枞醇和脱氢枞醇等。Reduction of a series of monobasic alcohol abietates over Cu-Zn catalysts was studied in supercritical hexane phase.The effects of the amount of Cu-Zn catalyst,and hexane,reaction temperature,reaction pressure,and reaction time on the conversion rate and selectives of abietate were investigated. Methyl abietate,butyl abietate,and octyl abietate were used as materials. The conversion rates reached 87. 9%,75. 0% and 69. 9%,the selectivities reached 93. 4%,92. 4% and 92. 8%,and the yields of abietinol reached 82. 1%,69. 3% and 64. 9%,respectively,when the reaction was conducted under the conditions of abietate 15 g,the amount of Cu-Zn catalyst 10%,the ratio of m（ abietate） to m（ hexane） 1 ∶ 3,temperature270 ℃,pressure 10 MPa,and reaction time 11 h. The analysis results of FT-IR and GC-MS showed that the ester group of abietate was reduced to hydroxyl group and the main components of the reduction products were dihydropimaric alcohol,dihydroabietic alcohol,tetrahydroabietic alcohol,and dehydropimaric alcohol.

关 键 词：超临界正己烷 松香酯 氢解还原反应 松香醇 

分 类 号：TQ35[化学工程]