Chiral chalcone epoxides exhibiting the oxygenation patterns of naturally occurring flavonoids and isoflavonoids were transformed into the corresponding α-hydroxydihydrochalcones. The availability of both enantiomers permitted assessment of the absolute configuration at the single chiral centre by CD spectroscopy; such protocol being applicable to defining the configuration of some naturally occurring
表现出天然
黄酮和异
黄酮的氧化模式的手性
查尔酮环氧化物被转化为相应的α-羟基
二氢查耳酮。两种对映异构体的可用性使得可以通过CD光谱法评估单个手性中心的绝对构型;这种方案适用于定义一些天然存在的类似物的构型,其中两个是新化合物。