Method for producing halohydantoin compound and halohydantoin compound
US9834517B2 · kind B2 · utility
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6Claims
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Key dates
| Filing date | Nov 15, 2013 |
| Grant date | Dec 5, 2017 |
| Priority date | — |
| Expiry date | Nov 15, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/72
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for producing a halohydantoin compound according to the present invention includes the steps of: (a) providing, in a dryer, a composition containing (i) at least one component selected from the group consisting of water, an organic solvent, and elemental halogen and (ii) a halohydantoin compound; and (b) drying the composition under reduced pressure in the dryer, the reduced pressure being reduced to a pressure lower than atmospheric pressure while introducing an inert gas from an outside source into the dryer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.