HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl orthoformate → 6-Phenyl-1,2,4-triazolo[4,3-a]pyrimidine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl orthoformate | HCID 31214 | — |
| Reactant | 2-Hydrazino-5-phenylpyrimidine | HCID 14169936 | — |
| Product | 6-Phenyl-1,2,4-triazolo[4,3-a]pyrimidine | HCID 20333341 | — |
Reaction Steps
A mixture of 2.5 g. of 2-hydrazino-5-phenylpyrimidine and 25 ml. of triethyl orthoformate is heated for 16 hours under reflux. The material that separates is collected and crystallized from ethanol to give 1.5 g. of the product of the Example, m.p. 231° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04209621 |
| Source dataset | uspto-grants-1980_06 |
| ORD ID | ord-9a4192171b444a14a381a1fef4bfd061 |
| Source note | uspto-grants-1980_06 |