A synthesis of chiral flavanones via the condensation of tricarbonyl(h6-arylbenzaldehyde)chromium(0) and o-hydroxyacetophenone in a shorter time at room temperature have been developed. The tricarbonylchromium(0) group was removed by virtue of light and the enantioenriched flavanones was formed with highly enantioselectivity (> 95 % ee).
已经开发了一种在室温下以更短的时间通过三羰基(h6-芳香醛)
铬(0)与邻羟基
乙酰苯酮的缩合反应合成手性
黄酮的方法。三羰基
铬(0)基团在光的作用下被去除,形成了具有高对映选择性的手性
黄酮(> 95 % ee)。