Process for producing lactam
US7045622B2 · kind B2 · utility
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6Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 23, 2001 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Jul 20, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D223/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
It is an object of the present invention to provide a method of continuously producing a lactam in high-temperature high-pressure water, and the present invention relates to a method for producing a lactam characterized by selectively synthesizing the lactam without bringing about hydrolysis by introducing an oxime into flowing high-temperature high-pressure water, wherein the lactam is continuously synthesized at a high rate from the oxime in water at a high temperature of at least 250° C. and a high pressure of at least 12 MPa.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.