Abstract:

α-Hy dro xycyclohexy lphenylketone is sy nthesized after four steps of reactions w ith benzaldehyde,bromocy clohexane and bromi ne as main raw material.T he oxygenizement reactio n and bromination reactions of the process are improved.T he second step react ion can react wit h chlorofo rm as solvent and benzalkonium bromide solution as phase transfer catalyst in room temperature.In cont rast to previous technology, by-products are fewer, t reat ments are simpler, and y ield is higher.The t hird step reaction, bromination reac-tion can react wi th tetrachloromethane as solvent and acetic acid as catalyst.T he characterstics of the im-proved method are simple technology, low cost and hig h yields.

Key words: photosensitized initiato r, α-Hydroxycy clohexylphenylketone, synthisis, improvement