中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 过程工程研究所
  3. 中国科学院过程工程研究所
Unraveling the cation and anion effects and kinetics for ionic liquid catalyzed direct synthesis of methyl acrylate under mild conditions

文献类型：期刊论文

作者Wang, Gang1,3; Li, Zengxi1,3; Li, Chunshan2,4; Zhang, Suojiang2,4
刊名GREEN CHEMISTRY
出版日期2020-11-21
卷号22期号:22页码:7913-7923
ISSN号1463-9262
DOI10.1039/d0gc03133j
英文摘要The direct synthesis of methyl acrylate (MA) from methyl acetate and trioxane at 350-380 degrees C is regarded as a supplementary route for the industrial propylene oxidation process; however, it suffers from rapid catalyst deactivation. Herein, a novel ionic liquid catalyzed mild liquid-phase system was developed for the direct synthesis of MA from methyl acetate and trioxane, where N,O-bis(trimethylsilyl)acetamide (BSA) was used as a probase for alpha-deprotonation and enol silyl etherification of methyl acetate. The trioxane decomposition to formaldehyde and methyl acetate enolization to 1-methoxy-1-trimethylsilyloxyethene proceeded with the catalysis of [Cation]Cl/MClx (M = Cu+, Fe3+, Zn2+ and Al3+) and [Cation]F, respectively. The cations and anions were observed to have significant effects on the yield and selectivity of MA, owing to the steric hindrance, acid site category and strength confirmed by pyridine probing FT-IR characterization. As a result, up to 60.2% yield with 94.6% selectivity of MA could be achieved when [N3,3,3,3]F and [N3,3,3,3]Cl/AlCl3 with 67 mol% AlCl3 were used in the presence of BSA at 25 degrees C. Kinetic studies indicated that the trioxane decomposition with the activation barrier of 41.2 +/- 0.3 kJ mol(-1) was the rate-determining step.
WOS关键词PHASE ALDOL CONDENSATION ; ONE-STEP SYNTHESIS ; SELECTIVE OXIDATION ; ACETIC-ACID ; ACETATE ; FORMALDEHYDE ; OXIDE ; TRIOXANE ; TRIFLUOROMETHANE ; PERFORMANCE
资助项目Key Research Program of Frontier Sciences, CAS[QYZDB-SSW-SLH022] ; National Natural Science Foundation of China[21878293] ; National Natural Science Foundation of China[21676270] ; Innovation Academy for Green Manufacture ; Chinese Academy of Sciences[IAGM-2019-A14] ; K. C. Wong Education Foundation[GJTD-2018-04]
WOS研究方向Chemistry ; Science & Technology - Other Topics
语种英语
WOS记录号WOS:000589891500020
出版者ROYAL SOC CHEMISTRY
资助机构Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; Innovation Academy for Green Manufacture ; Chinese Academy of Sciences ; K. C. Wong Education Foundation
源URL[http://ir.ipe.ac.cn/handle/122111/42642]  
专题中国科学院过程工程研究所
通讯作者Li, Zengxi; Li, Chunshan
作者单位1.Chinese Acad Sci, CAS Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China
2.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 101408, Peoples R China
4.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Gang,Li, Zengxi,Li, Chunshan,et al. Unraveling the cation and anion effects and kinetics for ionic liquid catalyzed direct synthesis of methyl acrylate under mild conditions[J]. GREEN CHEMISTRY,2020,22(22):7913-7923.
APA Wang, Gang,Li, Zengxi,Li, Chunshan,&Zhang, Suojiang.(2020).Unraveling the cation and anion effects and kinetics for ionic liquid catalyzed direct synthesis of methyl acrylate under mild conditions.GREEN CHEMISTRY,22(22),7913-7923.
MLA Wang, Gang,et al."Unraveling the cation and anion effects and kinetics for ionic liquid catalyzed direct synthesis of methyl acrylate under mild conditions".GREEN CHEMISTRY 22.22(2020):7913-7923.

入库方式： OAI收割

来源：过程工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。