HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrazine hydrate (1:1) → HCID 178422576, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | HCID 14368273 | HCID 14368273 | — |
| Solvent | Pyridine | HCID 1049 | — |
| Product | HCID 178422576 | HCID 178422576 | 81.2% |
Reaction Steps
The similar procedures in Example 1 by using 15.5 g of 4-(2-chloro-6-methylnicotinoyl)-2,6-di-tertiary butylphenol, 9.7 g of hydrazine hydrate and 85 ml of pyridine are carried out, and then the obtained crude crystals are recrystallized from ethanol to give 11.8 g of 3-(3,5-di-tertiary butyl-4-hydroxyphenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine as white crystals, melting at 239°-240° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04808620 |
| Source dataset | uspto-grants-1989_02 |
| ORD ID | ord-84a738affc7d420a9e01276a10189b69 |
| Source note | uspto-grants-1989_02 |