| 摘要 |
The process is carried out with the aid of an isomerisation catalyst and, if appropriate, in the presence of a solvent, the isomerisation catalyst employed being an alkali metal alkoxide, if appropriate together with a strongly polar aprotic compound, or a reaction product and/or mixture of an alkali metal and/or an alkali metal hydride and/or an organic alkali metal and/or organomagnesium compound and ammonia and/or an amine and/or hexamethylphosphoric triamide and the isomerisation being carried out at temperatures from 0 to + 200 DEG C. |
