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Official Journal of the Japan Wood Research Society

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Reactivity of secondary hydroxyl groups in methylβ-d-xylopyranoside toward aβ-o-4-type quinone methide

Abstract

Methylβ-d-xylopyranoside was allowed to react withβ-O-4-type quinone methide without a catalyst to elucidate the reactivities of secondary hydroxyl groups at the C2, C3, and C4 positions. Benzyl ether-type lignin-carbohydrate complex (LCC) compounds linked at the C2 and C4 positions were predominant, at a ratio of 23. However, the reactivity of the hydroxyl group at the C3 position was quite low. These results strongly suggest that the reactivity of the C2 hydroxyl group in xylan toward quinone methide intermediate is higher than that of the C3 hydroxyl group during biosynthesis of LCCs.

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Correspondence to Shuji Hosoya.

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Kishimoto, T., Ikeda, T., Karlsson, O. et al. Reactivity of secondary hydroxyl groups in methylβ-d-xylopyranoside toward aβ-o-4-type quinone methide. J Wood Sci 48, 32–37 (2002). https://doi.org/10.1007/BF00766235

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  • DOI: https://doi.org/10.1007/BF00766235

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