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Structural analysis of the components of Chinese lacquer “Kuro‐urushi”
Author(s) -
Hatada Koichi,
Kitayama Tatsuki,
Nishiura Takafumi,
Nishimoto Akira,
Simonsick William J.,
Vogl Otto
Publication year - 1994
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1994.021950533
Subject(s) - lacquer , catechol , chemistry , adduct , component (thermodynamics) , mass spectrometry , polymer chemistry , organic chemistry , chromatography , physics , thermodynamics , coating
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 1 H 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.