Class C07D : HETEROCYCLIC COMPOUNDS
Subclass 201/06: Preparation, separation, purification, or stabilisation of unsubstituted lactams Preparation of lactams from or via oximes by Beckmann rearrangement from ketones by simultaneous oxime formation and rearrangement
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11459302 | Refining process and refining system of caprolactam | Mar 22, 21 | Oct 04, 22 | ZHEJIANG HENGYI PETROCHEMICAL RESEARCH INSTITUTE CO., LTD. |
| 11208380 | Process for the purification of caprolactam from a solution of crude caprolactam without organic solvent extraction | Aug 21, 20 | Dec 28, 21 | AquafilSLO d.o.o. |
| 10787417 | Process for the purification of caprolactam from a solution of crude caprolactam without organic solvent extraction | Dec 15, 17 | Sep 29, 20 | AquafilSLO d.o.o. |
| 10093622 | Efficient process for the synthesis of cyclic amides | Jun 04, 15 | Oct 09, 18 | ANTHEA AROMATICS PRIVATE LIMITED |
| 9855255 | Substituted naphthyridinyl hydrazines as anti-liver cancer agents | May 26, 17 | Jan 02, 18 | KING SAUD UNIVERSITY |
| 9624176 | Method for preparing caprolactam by using a microreactor under lewis acid catalysis | Jun 24, 16 | Apr 18, 17 | NANJING TECH UNIVERSITY |
| 9533932 | Process for preparing cyclododecanone | Jul 31, 15 | Jan 03, 17 | EVONIK DEGUSSA GMBH |
| 9242931 | Method for producing amide compound | Dec 27, 13 | Jan 26, 16 | UBE INDUSTRIES, LTD. |
| 8962826 | Method for producing amide compound | Dec 27, 13 | Feb 24, 15 | UBE INDUSTRIES, LTD. |
| 8816069 | Method for producing amide compound | Mar 15, 11 | Aug 26, 14 | UBE INDUSTRIES, LTD. |
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