Preparation of 5,5-dimethyl-2-hydrazino-1,4,5,6-tetrahydro-pyrimidine hydrohalide
US4262122A · kind A · utility
8Cited by
1References
6Claims
0Family size
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Key dates
| Filing date | Feb 19, 1980 |
| Grant date | Apr 14, 1981 |
| Priority date | — |
| Expiry date | Feb 19, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
There is provided a novel process for preparing 5,5-dimethyl-2-hydrazino-1,4,5,6-tetrahydropyrimidine hydrohalide by causing neopentyldiamine to react with a guanidine hydrohalide and followed by treating the so-formed reaction product with hydrazine to yield the desired tetrahydropyrimidine hydrohalide. Alternatively, neopentyldiamine, guanidine hydrohalide and hydrazine can be admixed and reacted to yield the desired tetrahydropyrimidine hydrohalide.
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