HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrochloric Acid → 2-Methylpyrazolo[1,5-a]pyrimidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Tetramethoxypropane | HCID 66019 | — |
| Reactant | 1H-Pyrazol-3-amine, 5-methyl- | HCID 93146 | — |
| Product | 2-Methylpyrazolo[1,5-a]pyrimidine | HCID 12773559 | — |
Reaction Steps
3-Amino-5-methylpyrazole is reacted with 1,1,3,3-tetramethoxypropane under an acidic condition of hydrochloric acid and treated in a similar way to Reference Example 22 to give the title compound as a crystal. mp. 54°-57° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05017212 |
| Source dataset | uspto-grants-1991_05 |
| ORD ID | ord-ff69ca68fa9141ce992684b025a678e4 |
| Source note | uspto-grants-1991_05 |