Method for preparing acrolein cyanohydrins
US10214484B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Mar 27, 2018 |
| Grant date | Feb 26, 2019 |
| Priority date | — |
| Expiry date | Mar 27, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/3211
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to an improved method for preparing acrolein cyanohydrins from hydrocyanic acid and the corresponding acroleins. The method is characterized in that the acrolein cyanohydrins obtained have a very low hydrocyanic acid content or are free of hydrocyanic acid and are therefore particularly well suited as intermediates for the synthesis of glufosinates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.