| 摘要 |
<p>The invention relates to the process for the production of 2-dimethylamino methylcyclohexanone from cyclohexanone, paraformaldehyde and dimethylaminohydrochloride in the medium of acetic acid with recyclation of the diluent, distillation and extraction purification operations in the phase of a bare intermediate (Mannich salt), whilst the final product (Mannich base) is released by the change of pH and is distilled under the reduced pressure on the film vaporisers.</p> |
