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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1367343Generated: October 25, 2026

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

https://huagongshe.com/reaction/1367343

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 numberUS07893075B2
Source datasetuspto-grants-2011_02
ORD IDord-75293c9f00d045ef9a0da422216d8600
Source noteuspto-grants-2011_02