Process for producing .alpha.-hydroxyisobutyramide
US5463123A · kind A · utility
3Cited by
5References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1993 |
| Grant date | Oct 31, 1995 |
| Priority date | — |
| Expiry date | Oct 12, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C231/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is disclosed a process for producing .alpha.-hydroxyisobutyramide by hydration reaction of acetone cyanohydrin in the presence of a catalyst consisting essentially of manganese dioxide which process comprises pretreating the catalyst with a reducing agent. The above process is capable of eliminating the catalyst clogging trouble due to the deposition of the by-produced oxamide and thus proceeding with long-term reaction with the stabilized catalyst performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.