Separation and Preparation of a C15 Triolefinic Urushiol from Raw Lacquer

doi:10.3969/j.cnki.jdxb.2016.05.010

Abstract

Abstract:

Raw lacquer was extracted by petroleum ether.The extracts was separated using silica gel，MCI and ODS.The purified compound was identified with H-NMR，3C-NMR and high resolution mass spectrometry.The results showed that abundant urushiol was obtained when extracting with petroleum ether.Extracts was separated by silica gel eluting with petroleum ether/ethyl acetate (V(petroleum ether)∶V(ethyl acetate)=30∶1~10∶1))，followed by MCI and ODS eluting with methanol/water (V(methanol)∶V(water)=9∶1)，to afford a major urushiol (purity reached above 96%)，which was identified as a triolefinic urushiol，3-(8′Z，11′E，13′Z-pentadecatrienyl) catechol.

Key words: raw lacquer, triolefinic urushiol, separation, identification

HE Qian，ZHENG Jie，TIAN Yungang，LIU Yihan，WANG Jianxia，WEI Hua . Separation and Preparation of a C₁₅ Triolefinic Urushiol from Raw Lacquer[J]. Journal of Jishou University（Natural Sciences Edition), DOI: 10.3969/j.cnki.jdxb.2016.05.010.

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Separation and Preparation of a C₁₅ Triolefinic Urushiol from Raw Lacquer

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