Structural analysis of the components of Chinese lacquer “Kuro‐urushi” | Zendy

Hatada Koichi | Zendy; Kitayama Tatsuki | Zendy; Nishiura Takafumi | Zendy; Nishimoto Akira | Zendy; Simonsick William J. | Zendy; Vogl Otto | Zendy

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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.

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