Journal of Wood Science

, Volume 54, Issue 4, pp 329–331

Mechanism of formaldehyde adsorption of (+)-catechin

  • Toshiyuki Takano
  • Tomomi Murakami
  • Hiroshi Kamitakahara
  • Fumiaki Nakatsubo
Note

DOI: 10.1007/s10086-008-0946-8

Cite this article as:
Takano, T., Murakami, T., Kamitakahara, H. et al. J Wood Sci (2008) 54: 329. doi:10.1007/s10086-008-0946-8

Abstract

The reaction of (+)-catechin with formaldehyde vapor was investigated as a model reaction of formaldehyde adsorption of (+)-catechin. It was found by H nuclear magnetic resonance spectroscopy, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, and gel permeation chromatography of the product that the vapor reaction of (+)-catechin with formaldehyde without a solvent or a catalyst proceeds via methylolation, condensation, and polymerization. This is the same as the reaction in a solvent in the presence of an acid or a base. The formation of polyoxymethylenes such as paraformaldehyde was not confirmed.

Key words

Adsorption(+)-CatechinBark tanninFormaldehydeVapor reaction

Copyright information

© The Japan Wood Research Society 2008

Authors and Affiliations

  • Toshiyuki Takano
    • 1
  • Tomomi Murakami
    • 1
  • Hiroshi Kamitakahara
    • 1
  • Fumiaki Nakatsubo
    • 1
  1. 1.Division of Forest and Biomaterials Science, Graduate School of AgricultureKyoto UniversitySakyo-ku, KyotoJapan