| 摘要 |
FIELD: organic synthesis. SUBSTANCE: present invention describes process for recovery of triacetone amine semiproduct in synthesis of drugs and antioxidants. Recovery of the desired product is carried out by distillation of acetate from triacetone amine containing reaction mixture followed by addition of benzene, toluene, cyclohexane or gasoline, distillation of aqueous azeotrope at 70-85 C. EFFECT: more efficient recovery process. |
