Synthesis, spectroscopic characterization and DFT calculations of β-O-4 type lignin model compounds
作者:Fatemeh Mostaghni、Abbas Teimouri、Seyed Ahmad Mirshokraei
DOI:10.1016/j.saa.2013.03.075
日期:2013.6
β-O-4 type lignin model compounds with the title of Erythro-2-(2-methoxyphenoxy)-1-(3,4,5-trimethoxyphenyl)-1,3-propanediol and Erythro-2-(2-methoxyphenoxy)-1-(4-Hydroxy-3,5-dimethoxyphenyl)-1,3-propanediol were synthesised and some modifications and improvements on them were introduced. These compounds were characterized by IR, Mass and NMR spectroscopy. Density functional theory (DFT) calculations
标题为Erythro-2-(2-甲氧基苯氧基)-1-(3,4,5-三甲氧基苯基)-1,3-丙二醇和Erythro-2-(2-甲氧基苯氧基)的β-O-4型木质素模型化合物合成了-1-(4-羟基-3,5-二甲氧基苯基)-1,3-丙二醇,并对它们进行了一些修饰和改进。这些化合物通过IR,质谱和NMR光谱表征。使用标准6-31G *基集对标题化合物进行密度泛函理论(DFT)计算。使用6-31G在理论的DFT-B3LYP水平上计算标题化合物的IR,13 C和1 H NMR *基础集。在这项工作中,实验结果与理论结果之间的比较表明,DFT-B3LYP方法能够为预测所考虑化合物的性质提供令人满意的结果。