Cleavage∕cross-coupling strategy for converting β-O-4 linkage lignin model compounds into high valued benzyl amines via dual C–O bond cleavage
作者:Le Jia、Chao-Jun Li、Huiying Zeng
DOI:10.1016/j.cclet.2021.08.125
日期:2022.3
Lignin is the most recalcitrant of the three components of lignocellulosic biomass. The strength and stability of the linkages have long been a great challenge for the degradation and valorization of lignin biomass to obtain bio-fuels and commercial chemicals. Up to now, the selective cleavage of C–O linkages of lignin to afford chemicals contains only C, H and O atoms. Our group has developed a c
木质素是木质纤维素生物质的三种成分中最顽固的。长期以来,连接的强度和稳定性一直是木质素生物质降解和增值以获得生物燃料和商业化学品的巨大挑战。到目前为止,选择性裂解木质素的 C-O 键以提供化学品仅包含 C、H 和 O 原子。我们小组开发了一种裂解/交叉偶联策略,用于将 4-O-5 键木质素模型化合物转化为高附加值化合物。在此,我们提出了一种钯催化的β -O-4 木质素模型化合物与胺通过双 C-O 键裂解的裂解/交叉偶联,用于制备苄胺化合物和苯酚。