STRUCTURAL-ANALYSIS OF THE COMPONENTS OF CHINESE LACQUER KURO-URUSHI

The urushiol components in Chinese lacquer ''Kuro-urushi'', which was processed by treating Chinese Raw Urushi (''Ki-urushi'') with Fe(OH)2, were isolated by reversed-phase liquid chromatography. A new component, which was not present in ''Ki-urushi&...

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Bibliographic Details
Published inMacromolecular chemistry and physics Vol. 195; no. 5; pp. 1865 - 1870
Main Authors HATADA, K, KITAYAMA, T, NISHIURA, T, NISHIMOTO, A, SIMONSICK, WJ, VOGL, O
Format Journal Article
LanguageEnglish
Published BASEL Huthig & Wepf Verlag 01.05.1994
Subjects
Physical Sciences
Polymer Science
Science & Technology
BURMESE LAC TREE
MELANORRHOEA-USITATE
SAP
SEPARATION
LIQUID-CHROMATOGRAPHY
IDENTIFICATION
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Summary:The urushiol components in Chinese lacquer ''Kuro-urushi'', which was processed by treating Chinese Raw Urushi (''Ki-urushi'') with Fe(OH)2, were isolated by reversed-phase liquid chromatography. A new component, which was not present in ''Ki-urushi'', was found. Structural analysis using H-1 NMR and mass spectrometry showed that the component is a regioselectively formed water adduct of the original urushiol component, i. e., 3-(11'E, 13'Z-8'-hydroxypentadecadienyl)catechol.
ISSN:1022-1352
DOI:10.1002/macp.1994.021950533