| 摘要 |
<p>Process for the production of organic compounds The invention relates to a new, technical, environmentallyacceptable process for the production of o,o'-disubstituted phenylhydrazines of formula I I wherein R1 and R2, independently of one another, signify halogen or C1-5alkyl, and R3 signifies H, halogen or C1-5alkyl, by reducing the corresponding diazonium salts with an alkali metal sulphite.</p> |
