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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 241059Generated: October 26, 2026

Dimethylamine → 2-Amino-5-bromo-N,N-dimethylnicotinamide

https://huagongshe.com/reaction/241059

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylamineHCID 674—
ReactantTriethylamineHCID 8471—
Reactant2-Amino-5-bromonicotinic acidHCID 737445—
ReactantDiethylphosphorylcyanideHCID 13586794—
SolventTetrahydrofuranHCID 8028—
Product2-Amino-5-bromo-N,N-dimethylnicotinamideHCID 57537547—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a suspension of 2-amino-5-bromonicotinic acid (0.35 g, 1.61 mmol) in tetrahydrofuran (5 mL) was added dimethylamine (0.8 mL of a 2M solution in tetrahydrofuran, 1.60 mmol), diethylphosphoryl cyanide (0.29 g, 1.77 mmol), and triethylamine (0.34 g, 3.38 mmol) at 0° C. The mixture was stirred at 0° C. for 30 min and then at room temperature for 4 h. Concentration and purification by column chromatography on silica (5-10% methanol in dichloromethane) gave the title Compound as a white solid. MS (EI) for C8H10BrN3O: 244 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08648066B2
Source datasetuspto-grants-2014_02
ORD IDord-7eb2afd095d64758978e9225e02497c7
Source noteuspto-grants-2014_02