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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2202638Generated: November 1, 2026

3,5-Difluoro-4-hydroxybenzaldehyde → HCID 178513723, compound

https://huagongshe.com/reaction/2202638

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,5-Difluoro-4-hydroxybenzaldehydeHCID 10192584—
Reactant5-amino-3-((3-chlorophenyl)amino)-1H-pyrazole-4-carboxamideHCID 86698956—
CatalystPiperidineHCID 8082—
SolventEthanolHCID 702—
ProductHCID 178513723HCID 178513723—

Reaction Steps

5-amino-3-((3-chlorophenyl)amino)-1H-pyrazole-4-carboxamide was then suspended in EtOH and 3,5-difluoro-4-hydroxybenzaldehyde (1 eq.) and piperidine (1 drop) were added. Stirred at reflux until intermediate was absent (HPLC). After reaction was complete (18 hrs) it was brought to room temperature and filtered to obtain product as a yellow powder. Powder was washed with EtOH. Product was allowed to dry under vacuum for 1 hr.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09365556B2
Source datasetuspto-grants-2016_06
ORD IDord-56a24256e399445d93089c4a2bd21ac9
Source noteuspto-grants-2016_06