Process for preparation of monomethylhydrazine
US4855501A · kind A · utility
1Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1981 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Dec 3, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C241/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for the preparation of monomethylhydrazine which comprises reacting hydrazine monohydrochloride with methanol in the presence of hydrazine dihydrochloride or methyl chloride and recovering free monomethylhydrazine from the formed monomethylhydrazine hydrochloride. According to this process, monomethylhydrazine can be prepared at a high selectivity very easily while controlling formation of by-products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.