Production of 5-methyl-1-hydrocarbyl-2-pyrrolidone by reductive amination of levulinic acid
US6900337B2 · kind B2 · utility
11Cited by
1References
38Claims
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Key dates
| Filing date | Mar 24, 2003 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Jul 18, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D207/27
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
This invention relates to a process for producing 5-methyl-1-R-2-pyrrolidone or 5-methyl-2-pyrrolidone, wherein R is a hydrocarbyl or substituted hydrocarbyl, by reductive amination of levulinic acid utilizing a metal catalyst, which may be optionally supported.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.