| 摘要 |
<p>Para-methylsulphonylbenzaldehyde, useful as an intermediate for medicines such as thiamphenicol, is prepd. by hydrolysis of para-methylsulphonylbenzylidene bromide with water optionally in the presence of acid or alkali. The starting material may be prepd. by reaction of methyl p-tolyl sulphone with bromine.</p> |
