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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1952091Generated: October 31, 2026

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

https://huagongshe.com/reaction/1952091

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 numberUS08404700B2
Source datasetuspto-grants-2013_03
ORD IDord-3cd0c85d15d9455c8b78f4f436a77bfb
Source noteuspto-grants-2013_03