HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethyl orthoformate → 1,2,4-Triazolo(3,4-a)phthalazine, 6-phenyl-
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethyl orthoformate | HCID 31214 | — |
| Reactant | 1-hydrazinyl-4-phenylphthalazine | HCID 113169 | — |
| Product | 1,2,4-Triazolo(3,4-a)phthalazine, 6-phenyl- | HCID 97338 | — |
Reaction Steps
A mixture of 4-phenyl-1-hydrazinophthalazine (30 g) and triethylorthoformate (200 ml) is refluxed for 3 hours, then the excess of the orthoformate is evaporated off and the residue is crystallized from ethanol yielding 26 g of the compound of the title. M.p. 198°-99° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04788186 |
| Source dataset | uspto-grants-1988_11 |
| ORD ID | ord-59953c45a91f4f99a02b5780bdfaef91 |
| Source note | uspto-grants-1988_11 |