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Liquid-phase catalytic synthesis of 2,5-dimethyl-2,4-hexadiene by condensation of iso-butyl aldehyde with tert-butyl alcohol over solid acidic
Wang, H; Liu, ZM; Sun, CL; Wang, GW
KeywordHzsm-5 Molecular Sieve 2 Iso-butyl Aldehyde 5-dimethyl-2 Liquid-phase 4-hexadiene Prins Reaction Tert-butyl Alcohol
Source PublicationCATALYSIS TODAY
2004-09-01
DOI10.1016/j.cattod.2004.06.052
Volume93-5Pages:425-431
Indexed ByISTP ; SCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
AbstractSeveral solid acidic catalysts have been investigated for the Prins condensation of iso-butyl aldehyde with tert-butyl alcohol in a liquid-phase reaction. The results demonstrate that acidic molecular sieves are effective catalysts for the condensation reaction, and HZSM-5 molecular sieves possessed strong enough acidity and proper channel systems exhibit high catalytic performance. Solvent polarity and solvent-active site interaction would significantly affect the aldehyde conversion and the 2,5-dimethyl-2,4-hexadiene selectivity. The iso-butyl aldehyde to tert-BuOH ratio, catalyst amount, solvent amount, reaction temperature, reaction time, Si/Al ratio of HZSM-5 molecular sieves, catalytic performance of different solid acids, and side-reactions in the system are studied. Up to 78.6% iso-butyl aldehyde conversion is obtained with a 57.8% 2,5-dimethyl-2,4-hexadiene yield over HZSM-5 with Si/Al of 39 after 8 h at 160degreesC, which provides a useful and economical potential industrial application way on a large scale to manufacture 2,5-dimethyl-2,4-hexadiene. (C) 2004 Elsevier B.V. All rights reserved.
Language英语
WOS IDWOS:000223973200060
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/139352
Collection中国科学院大连化学物理研究所
AffiliationChinese Acad Sci, Dalian Inst Chem Phys, Nat Gas Utilizat & Appl Catalysis Lab, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Wang, H,Liu, ZM,Sun, CL,et al. Liquid-phase catalytic synthesis of 2,5-dimethyl-2,4-hexadiene by condensation of iso-butyl aldehyde with tert-butyl alcohol over solid acidic[J]. CATALYSIS TODAY,2004,93-5:425-431.
APA Wang, H,Liu, ZM,Sun, CL,&Wang, GW.(2004).Liquid-phase catalytic synthesis of 2,5-dimethyl-2,4-hexadiene by condensation of iso-butyl aldehyde with tert-butyl alcohol over solid acidic.CATALYSIS TODAY,93-5,425-431.
MLA Wang, H,et al."Liquid-phase catalytic synthesis of 2,5-dimethyl-2,4-hexadiene by condensation of iso-butyl aldehyde with tert-butyl alcohol over solid acidic".CATALYSIS TODAY 93-5(2004):425-431.
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