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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 890433Generated: October 29, 2026

Hydrochloric Acid → HCID 21935704, compound

https://huagongshe.com/reaction/890433

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantFormaldehydeHCID 712—
ReactantDimethylamine, hydrochlorideHCID 10473—
Reactant1-(4-(Trifluoromethyl)phenyl)ethan-1-oneHCID 69731—
SolventEthanolHCID 702—
ProductHCID 21935704HCID 21935704—

Reaction Steps

4-(Trifluoromethyl) acetophenone (4.97 g, 26.4 mmol), paraformaldehyde (1.586 g, 2 eq.), dimethylamine hydrochloride (3.23 g, 1.5 eq.) were mixed together in 7 ml of EtOH, treated with 0.08 ml of 37% HCl, and heated to reflux for 5 h. Cooling down to ambient temperature, filtration and washing with tiny amounts of cold EtOH delivered 4.59 g of the title compound as white crystals, mp. 128–142° C. (dec.).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06995263B2
Source datasetuspto-grants-2006_02
ORD IDord-59f839cc33c845198423be89eef3b917
Source noteuspto-grants-2006_02