Structural analysis of the components of Chinese lacquer “Kuro-urushi”

✍ Scribed by Koichi Hatada; Tatsuki Kitayama; Takafumi Nishiura; Akira Nishimoto; William J. Simonsick Jr.; Otto Vogl

• Book ID: 102482554
• Publisher: John Wiley and Sons
• Year: 1994
• Tongue: English
• Weight: 253 KB
• Volume: 195
• Category: Article
• ISSN: 1022-1352
• DOI: 10.1002/macp.1994.021950533

✦ Synopsis

Abstract

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.