HuagongsheHuagongshe Chemistry Print Report · For research reference only
3-Chloro-4-fluorophenylhydrazine hydrochloride → 1-(3-Chloro-4-fluorophenyl)-5-(5-fluoropyridin-3-yl)-1H-pyrazole-3-carboxylic acid
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 3-Chloro-4-fluorophenylhydrazine hydrochloride | HCID 44181777 | — |
| Reactant | 5-(3-Chloro-5-fluorophenyl)-1-(pyridin-2-yl)-1H-pyrazole-3-carboxylic acid | HCID 89602575 | — |
| Reactant | Lithium 1-(5-fluoropyridin-3-yl)-4-ethoxy-3,4-dioxobut-1-en-1-olate | HCID 131735138 | — |
| Product | 1-(3-Chloro-4-fluorophenyl)-5-(5-fluoropyridin-3-yl)-1H-pyrazole-3-carboxylic acid | HCID 89609959 | — |
Reaction Steps
1.42 g (4.33 mmol) of the compound of Example 13A is reacted analogously to the synthesis of the compound of Example 20A with 1.28 g (6.50 mmol) of 3-chloro-4-fluorophenylhydrazine hydrochloride. After hydrolysis, 854 mg (59% of theory) of the title compound is obtained.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09296720B2 |
| Source dataset | uspto-grants-2016_03 |
| ORD ID | ord-ba29dbc9784b4133891784409a653f6b |
| Source note | uspto-grants-2016_03 |