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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2179941Generated: October 30, 2026

Ammonium Chloride → HCID 86759690, compound

https://huagongshe.com/reaction/2179941

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant2-(Tributylstannyl)pyrimidineHCID 2763251—
Reactanttert-butyl N-methyl-N-(3-oxopropyl)carbamateHCID 10442454—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86759690HCID 8675969043%

Reaction Conditions

Temperature-78 °C

Reaction Steps

To 2-(tributylstannyl)pyrimidine (690 mg, 1.87 mmol) dissolved in dry tetrahydrofuran (10 ml) cooled to −78° C. was added 2.4M n-butyl lithium in hexanes (0.8 ml, 1.87 mmol) under nitrogen. After stirring for a further 0.5 h, methyl(3-oxopropyl)carbamic acid, 1,1-dimethylethyl ester in dry tetrahydrofuran (10 ml) was added rapidly at −78° C. The reaction mixture was allowed to warm to ambient, treated with aqueous saturated ammonium chloride solution and extracted with ethyl acetate which was washed with brine and dried over anhydrous magnesium sulphate. The solvent was evaporated and the residue eluted down a flash chromatography column using initially 10% ethyl acetate/dichloromethane, then 10% methanol/dichloromethane to give 260 mg (43%) of the subtitle compound as a viscous yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06887871B2
Source datasetuspto-grants-2005_05
ORD IDord-8ac22a428f5e431b8b517ce2cef8fb31
Source noteuspto-grants-2005_05