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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 528446Generated: October 25, 2026

2-Amino-4-methylpyrimidine → 5-Bromo-4-methylpyrimidin-2-amine

https://huagongshe.com/reaction/528446

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-4-methylpyrimidineHCID 7939—
ReactantN-bromobutanimideHCID 67184—
SolventChloroformHCID 6212—
SolventDichloromethaneHCID 6344—
Product5-Bromo-4-methylpyrimidin-2-amineHCID 1861619687.4%

Reaction Steps

To a solution of 4-methylpyrimidine-2-ylamine (8.0 g, 0.073 mol) in chloroform (320 mL) was added N-bromosuccinimide (13.7 g, 0.077 mol). The reaction mixture was stirred in the dark for 18 hrs. LC/MS indicated the reaction was completed. The mixture was diluted with DCM, then washed with 1N NaOH aq solution and brine, dried over MgSO4, filtered and concentrated to yield 5-bromo-4-methylpyrimidine-2-ylamin (12 g, Yield: 86%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09346817B2
Source datasetuspto-grants-2016_05
ORD IDord-b31e7c7d10ed4442bd5e5971b627eda1
Source noteuspto-grants-2016_05