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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1754710Generated: October 25, 2026

Trifluoroacetic acid → (6-Bromo-pyridazin-3-yl)-(4-chloro-benzyl)-amine

https://huagongshe.com/reaction/1754710

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant4-ChlorobenzaldehydeHCID 7726—
ReactantTriethylsilaneHCID 12052—
Reactant6-Bromopyridazin-3-amineHCID 2794779—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
Product(6-Bromo-pyridazin-3-yl)-(4-chloro-benzyl)-amineHCID 57619288—

Reaction Steps

To 6-bromo-pyridazin-3-ylamine (521, 0.85 g, 0.0049 mol) in acetonitrile (30.0 mL) were added 4-chlorobenzaldehyde (40, 0.82 g, 0.0058 mol), triethylsilane (4.0 mL, 0.025 mol) and trifluoroacetic acid (2.0 mL, 0.026 mol). The reaction was heated to reflux for 4 hours, then poured into water, and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was concentrated and washed with ethyl acetate to give a white solid (522, 1.0 g). MS (ESI) [M+H+]+=298.3, 300.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09169250B2
Source datasetuspto-grants-2015_10
ORD IDord-58b818027b27447ab74acdd446f76410
Source noteuspto-grants-2015_10