LIGNIN MODEL COMPOUNDS: II. PREPARATION AND PROPERTIES OF 1-HYDROXY-1-(4-HYDROXY-3-METHOXYPHENYL)-2-PROPANONE
作者:J. A. F. Gardner、D. W. Henderson、Harold MacLean
DOI:10.1139/v62-253
日期:1962.8.1
Modern concepts of lignin structure suggest that the ketol 1-hydroxy-1-(4-hydroxy-3-methoxyphenyl)-2-propanone, VI, should be detectable in the hydrolysis products of lignin and wood. A reference sample of VI, previously unavailable, has now been prepared by catalytic hydrogenation of the diketone 1-(4-hydroxy-3-methoxyphenyl)-1,2-propanedione, II. Both fermentative and catalytic hydrogenation of II
木质素结构的现代概念表明,酮醇 1-羟基-1-(4-羟基-3-甲氧基苯基)-2-丙酮 VI 应该可以在木质素和木材的水解产物中检测到。以前无法获得的 VI 参考样品现在已通过二酮 1-(4-羟基-3-甲氧基苯基)-1,2-丙二酮 II 的催化氢化制备。根据纸色谱,II 的发酵和催化氢化均得到主要为 2-羟基-1-(4-羟基-3-甲氧基苯基)-1-丙酮,V 的混合物;所需的酮醇,VI;少量香草酸;以及痕量愈创木酰丙酮和一种未知的酚类化合物。通过溶剂分馏从催化氢化产物中分离出酮醇 VI,并通过吸收光谱、衍生物以及与其他两种可能的异构酮醇的比较进行鉴定。