Method for producing semicarbazide compound
US11192854B2 · kind B2 · utility
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Key dates
| Filing date | Jun 11, 2019 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Jun 11, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C281/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Provided is a method for producing a high-purity, high-quality semicarbazide compound at a high yield by a simple method. The semicarbazide compound is recrystallized by a solvent containing a halogenated hydrocarbon. Dichloromethane is preferred as the halogenated hydrocarbon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.