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Citation: DU Kun, LIU Xiong-Min, HUANG Hong-Miao, LI Wei-Guang, LI Piao-Ying. Ozonization of Methyl Esters of Longchain Unsaturated Fatty Acids[J]. Chinese Journal of Applied Chemistry, ;2004, 21(10): 1063-1065. shu

Ozonization of Methyl Esters of Longchain Unsaturated Fatty Acids

1.
Industrial Testing & Experiment Center, Guangxi University, Nanning 530004

Corresponding author: LIU Xiong-Min,
Received Date: 29 September 2003
Available Online: 3 February 2004
Fund Project: 教育部科学技术重点项目资助(204110) (204110)广西自然科学基金资助项目(桂科自0135013) (桂科自0135013)

Ozonization processes of 15-tetracosenoic acid methyl ester(TAE) and 9-octadecenoic acid methyl ester(OAE) obtained from Malania Oleifera Chum oil have been monitored by combined gas chromato graphy-mass spectrometry(GC-MS) or gas chromatography(GC). The effect of reaction temperature and solvent(heptane, toluene, n-butyl acetate, ethanol, and heptane-ethanol) on the ozonization selectivity of TAE and OAE were investigated. The results show that TAE has good selectivity in heptane because of its small dielectric constant. The k_TAE/k_OAE of the ozonization reaction decreased with the increase of ethanol in heptane-ethanol, whereas the ozonization selectivities of TAE and OAE reduced with the increase of the reaction temperature.
- ozonization,
- unsaturated fatty acid methyl ester,
- selectivity
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