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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1761064Generated: October 30, 2026

Dimethyl Carbonate → HCID 22139127, compound

https://huagongshe.com/reaction/1761064

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl CarbonateHCID 12021—
ReactantSodium MethoxideHCID 10942334—
Reactant5-Bromo-3-[(methylamino)methyl]pyridin-2-amineHCID 22139077—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 22139127HCID 2213912767.1%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a solution of dimethyl carbonate (2.14 g, 23.7 mmole) and sodium methoxide (1.0 mL, 4.5 mmole, 25% wt in CH3OH) in CH3OH (25 mL) was added 2-amino-5-bromo-3-(methylaminomethyl)pyridine (I 0.0 g, 4.62 mmole). The reaction was heated at 50° C. overnight, diluted with H2O (1 mL) and concentrated. Toluene was added to the reaction residue and the contents were heated to reflux for 12 hr under a Dean-Stark apparatus. The reaction was cooled to RT, diluted with EtOAc, and washed with H2O. Purification on silica gel (9:1 CHCl3/CH3OH containing 5% NH4OH) gave the title compound (0.75 g, 67%) as an off-white solid: MS (ES) m/e 243 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06846819B1
Source datasetuspto-grants-2005_01
ORD IDord-07eaaf043a6144e1be10881c31df83eb
Source noteuspto-grants-2005_01