Process for production of .alpha.-hydroxycarboxylic acid amide
US4987256A · kind A · utility
12Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1990 |
| Grant date | Jan 22, 1991 |
| Priority date | — |
| Expiry date | Jul 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C231/065
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Process for production of .alpha.-hydroxycarboxylic acid amide of the general formula (A), comprising hydrating cyanhydrin of the general formula (B) by the use of a modified manganese dioxide catalyst containing one or more of zirconium, vanadium, and tin, and an alkali metal element. ##STR1## wherein all the symbols are as defined in the appended claims.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.