Identification of the Major Degradation Products of 4-Methoxy-2-(3-phenyl-2-propynyl)phenol Formed by Exposure to Air and Light
作者:Marco Schiavi、Sandro Serafini、Angela Italia、Maurizio Villa、Giovanni Fronza、Antonio Selva
DOI:10.1002/jps.2600810818
日期:1992.8
Exposure of 4-methoxy-2-(3-phenyl-2-propynyl)phenol (CO/1828) to air and light (accelerated by temperature) yields 1-(2-hydroxy-5- methoxyphenyl)-3-phenylpropynone as the major degradation product. With extraction, this product rapidly degrades to 5-methoxyaurone and 6-methoxyflavone. In addition, a mixture of dimeric and heterodimeric compounds that are not fully identified was observed. These results
将4-甲氧基-2-(3-苯基-2-丙炔基)苯酚(CO / 1828)暴露于空气和光线(温度加速)下,生成1-(2-羟基-5-甲氧基苯基)-3-苯基丙炔酮主要降解产物。通过萃取,该产物迅速降解为5-甲氧基金酮和6-甲氧基黄酮。另外,观察到未完全鉴定的二聚和异二聚化合物的混合物。这些结果表明反应性邻醌甲基化物的形成为不稳定的中间体。该假设得到了证据的证明,即对照样品中的金酮缓慢异构化为黄酮。化合物的鉴定通过质谱,核磁共振波谱,紫外高效液相色谱法以及与真实样品的比较来完成。