作者:Hirotaka YAMAMOTO、Tsutomu HOSHINO、Takeo UCHIYAMA
DOI:10.1271/bbb.63.390
日期:1999.1
5,5'-Diferulic acid (5,5'-DFA), which is one of the cross-linking residues in plant cell walls, was prepared by using a facile procedure. The phenol oxidation of vanillin with FeCl3 gave divanillin, which was further devoted to a Perkin reaction to give the desired product. It was found on (13)C-NMR that the chemical shift of C-5 of ferulic acid (FA) clearly shifted downfield, when this carbon is quaternarized
通过使用简便的方法,制备了5,5'-二硬脂酸(5,5'-DFA),它是植物细胞壁中的交联残基之一。用FeCl3对香兰素进行苯酚氧化,得到二香兰素,将其进一步用于珀金反应以得到所需的产物。在(13)C-NMR中发现,当该碳被氧化二聚作用季铵化为5,5'-DFA时,阿魏酸(FA)的C-5的化学位移明显向低场移动,而其他碳则为5,5'-DFA的残基与FA的残基基本相同。还制备了[9,9'-(13)C2] -5,5'-DFA,在GC-MS定量植物组织中内源性5,5'-DFA时,它被证明是很好的内标。