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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 58037Generated: October 30, 2026

1,2-Dichloroethane → 5-Bromo-N-methylpyrimidine-4-carboxamide

https://huagongshe.com/reaction/58037

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DichloroethaneHCID 11—
Reactant1-HydroxybenzotriazoleHCID 75771—
ReactantDiisopropylethylamineHCID 81531—
ReactantMethylamine hydrochlorideHCID 6364545—
Reactant5-Bromopyrimidine-4-carboxylic acidHCID 21329200—
SolventDimethylformamideHCID 6228—
Product5-Bromo-N-methylpyrimidine-4-carboxamideHCID 8381474335%

Reaction Steps

To a mixture of 5-bromopyrimidine-4-carboxylic acid (0.3 g, 1.478 mmol) in DMF (3 mL) were added HOBt (0.260 g, 1.921 mmol), EDC (0.397 g, 2.069 mmol), methanamine HCl (0.200 g, 2.96 mmol), followed by N-ethyl-N-isopropylpropan-2-amine (0.772 mL, 4.43 mmol). The reaction mixture was stirred for 18 hours at room temperature. The crude residue was purified by preparative HPLC (Waters SunFire C18, 5 μm, 30 mm ID×75 mm column) eluting with 5% ACN (containing 0.035% TFA) in water (containing 0.05% TFA) to give the title compound as a light brown solid (0.11 g, 35%). ESI-MS m/z [M+H]+ calc'd for C6H7BrN3O, 216.0. found 216.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434743B2
Source datasetuspto-grants-2016_09
ORD IDord-055340dfd0d44bdf8f11f2c55eb6e549
Source noteuspto-grants-2016_09