作者:Mark F. Oldfield、Lirong Chen、Nigel P. Botting
DOI:10.1002/jlcr.1460
日期:2007.12
A facile synthesis is described for [3,4,1′-13C3]genistein for use as an internal standard in isoflavone analysis by mass spectrometric methods. Ethyl 4-hydroxy[1-13C]benzoate was first prepared from the reaction of diethyl [2-13C]malonate and 4H-pyran-4-one. Two further 13C atoms were incorporated using potassium [13C]cyanide as the source to give 4′-benzyloxy-[1,2,1′-13C3]phenylacetonitrile. [3,4
描述了 [3,4,1'-13C3] 染料木黄酮的简单合成,用作质谱法分析异黄酮的内标。4-羟基[1-13C]苯甲酸乙酯首先由[2-13C]丙二酸二乙酯和4H-吡喃-4-酮反应制备。使用 [13C] 氰化钾作为来源并入另外两个 13C 原子,得到 4'-苄氧基-[1,2,1'-13C3]苯基乙腈。[3,4,1'-13C3]然后通过在Hoesch条件下将同位素标记的苯乙腈与间苯三酚偶联,然后进行甲酰化和环化来构建染料木黄酮。版权所有 © 2007 John Wiley & Sons, Ltd.