caa a22 4500 463247450 CHVBK 20180405153330.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s10086-006-0839-7 doi (NATIONALLICENCE)springer-10.1007/s10086-006-0839-7 Effects of side-chain hydroxyl groups on pyrolytic β -ether cleavage of phenolic lignin model dimer [Elektronische Daten] [Haruo Kawamoto, Sunao Horigoshi, Shiro Saka] Effects of side chain hydroxyl groups on pyrolytic β-ether cleavage of phenolic model dimers were studied with various deoxygenated dimers under pyrolysis conditions of N2/400°C/1 min. Although phenolic dimer with hydroxyl groups at the C α − and C γ −positions was much more reactive than the corresponding nonphenolic type, deoxygenation at the C γ -position substantially reduced the reactivity up to the level of the nonphenolic type. These results are discussed with the cleavage mechanism via quinone methide intermediate formation, which is activated through intramolecular hydrogen bonds between C α − and C γ − hydroxyl groups. The Japan Wood Research Society, 2006 Lignin pyrolysis nationallicence Model compound nationallicence β -Ether cleavage nationallicence Effect of hydroxyl group nationallicence Kawamoto Haruo Department of Socio-Environmental Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida Hon-machi, Sakyo-ku, 606-8501, Kyoto, Japan aut Horigoshi Sunao Department of Socio-Environmental Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida Hon-machi, Sakyo-ku, 606-8501, Kyoto, Japan aut Saka Shiro Department of Socio-Environmental Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida Hon-machi, Sakyo-ku, 606-8501, Kyoto, Japan aut Journal of Wood Science Springer-Verlag 53/3(2007-06-01), 268-271 1435-0211 53:3<268 2007 53 10086 https://doi.org/10.1007/s10086-006-0839-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10086-006-0839-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kawamoto Haruo Department of Socio-Environmental Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida Hon-machi, Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 700 1- Horigoshi Sunao Department of Socio-Environmental Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida Hon-machi, Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 700 1- Saka Shiro Department of Socio-Environmental Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida Hon-machi, Sakyo-ku, 606-8501, Kyoto, Japan aut NATIONALLICENCE 773 0- Journal of Wood Science Springer-Verlag 53/3(2007-06-01), 268-271 1435-0211 53:3<268 2007 53 10086 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer