Abstract A number of chlorohydroxy-chalcones has been prepared by condensation of various aromatic aldehydes with 2-hydroxy-5-chloro-, 4-hydroxy-3-chloro-and 2-hydroxy-3- chloro-acetophenones. The ultra-violet absorption spectra of these chalcones have been recorded.
![2-Propen-1-one,1-(5-chloro-2-hydroxyphenyl)-3-[4-(dimethylamino)phenyl]-结构式](https://image.chemsrc.com/caspic/485/15934-77-7.png)
