作者:Eckhard Wollenweber、Karin Mann、Munekazu Iinuma、Toshiyuki Tanaka、Mizuo Mizuno
DOI:10.1016/0031-9422(89)85067-8
日期:——
Abstract A new flavone, 5,2′,5′-trihydroxyflavone and 2′,β-dihydroxychalcone (β-diketone) were isolated from the farinose exudate of Primula pulverulenta . These structures were established on the basis of spectral data and confirmed by total synthesis. A transformation experiment suggests that the β-diketone is converted into flavone during isolation procedures.
摘要 从报春花粉质糖分泌物中分离得到一种新的黄酮5,2',5'-三羟基黄酮和2',β-二羟基查尔酮(β-二酮)。这些结构是在光谱数据的基础上建立的,并通过全合成证实。转化实验表明 β-二酮在分离过程中转化为黄酮。