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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2171913Generated: October 29, 2026

Triethylamine → HCID 86714772, compound

https://huagongshe.com/reaction/2171913

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactanttert-Butylhydrazine monohydrochlorideHCID 81889—
Reactant2,4-Dichloro-5-fluoropyrimidineHCID 250705—
SolventEthanolHCID 702—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86714772HCID 8671477277.7%

Reaction Steps

To a solution of 2,4-dichloro-5-fluoro-pyrimidine (1.84 g, 11.00 mmol) and tert-butylhydrazine hydrochloride (1.25 g, 10.00 mmol) in THF (50 mL) and EtOH (5 mL) was added triethylamine (4.18 mL, 30.00 mmol). The reaction mixture was stirred at room temperature overnight. The reaction mixture was filtered to remove triethylamine HCl salt and the filtrate concentrated in vacuo. The resulting residue was purified by silica gel chromatography (EtOAc/Hexanes) to afford 1.7 g of the desired product: 1H NMR (400 MHz, CDCl3) δ 7.82 (d, J=2.8 Hz, 1H), 6.47 (s, 1H), 4.60 (d, J=5.8 Hz, 1H), 1.09 (s, 9H). LCMS Gradient 10-90%, 0.1% formic acid, 5 minutes, C18/ACN, Retention Time=2.19 minutes (M+H) 218.81.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09051319B2
Source datasetuspto-grants-2015_06
ORD IDord-b658397ed4ae4c1c9a92d8ea7cc2865c
Source noteuspto-grants-2015_06