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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 571876Generated: October 30, 2026

Dimethylcarbamoyl Chloride → HCID 86674695, compound

https://huagongshe.com/reaction/571876

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylcarbamoyl ChlorideHCID 6598—
ReactantTriethylamineHCID 8471—
ReactantTrimethylsilyl cyanideHCID 82115—
Reactant4-Pyridinecarboxylic acid, 2-ethyl-, methyl ester, 1-oxideHCID 86674696—
SolventAcetonitrileHCID 6342—
ProductHCID 86674695HCID 86674695—

Reaction Conditions

Temperature90 °C

Reaction Steps

Under N2, 2-ethyl-4-(methoxycarbonyl)pyridine 1-oxide (0.165 g, 911 μmol, Eq: 1.00) was dissolved in Acetonitrile (4 ml). Dimethylcarbamylchlorid (108 mg, 92.1 μl, 1.00 mmol, Eq: 1.1), triethylamine (175 mg, 239 μl, 1.73 mmol, Eq: 1.9) and Trimethylsilylcyanid (280 mg, 355 μl, 2.82 mmol, Eq: 3.10) were added and the RM was stirred at 90° C. overnight. The RM became an orange solution. Control with TLC: the reaction was finished. At RT, the RM was partitioned between water and EtOAc. The organic phase was dried over MgSO4; filtered; concentrated in vacuo: 350 mg; NMR: T205185. The crude material was purified by flash chromatography (silica gel, 20 g, 5% to 50% EtOAc in heptane). Light yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09029370B2
Source datasetuspto-grants-2015_05
ORD IDord-c4ec67bd28cc4c87a363c3394ab96407
Source noteuspto-grants-2015_05