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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 491230Generated: October 25, 2026

Cesium carbonate → (2-Chloro-5-methyl-pyrimidin-4-yl)-(4-chloro-3-trifluoromethyl-phenyl)-amine

https://huagongshe.com/reaction/491230

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCesium carbonateHCID 10796—
Reactant4-Bromo-2-chloro-alpha,alpha,alpha-trifluorotolueneHCID 67959—
Reactant2-Chloro-5-methylpyrimidin-4-amineHCID 4302175—
Catalyst1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
CatalystBis(dibenzylideneacetone)palladiumHCID 9811564—
Solvent1,4-DioxaneHCID 31275—
Product(2-Chloro-5-methyl-pyrimidin-4-yl)-(4-chloro-3-trifluoromethyl-phenyl)-amineHCID 5751650662.1%

Reaction Steps

A mixture of 4-bromo-1-chloro-2-(trifluoromethyl)benzene (259 mg, 1.0 mmol), 4-amino-2-chloro-5-methylpyrimidine (143 mg, 1.0 mmol), Pd2(dba)3 (9 mg, 0.01 mmol), xantphos (14 mg, 0.02 mmol) and cesium carbonate (650 mg, 2.0 mmol) in dioxane (15 mL) was heated under refluxed for 10 h under argon. The solvent was removed and the residue was purified by HPLC to give an intermediate 2-chloro-N-(4-chloro-3-(trifluoromethyl)phenyl)-5-methylpyrimidin-4-amine as brown solid (200 mg, 62%). A mixture of this intermediate (161 mg, 0.5 mmol) and 4-(2-(pyrrolidin-1-yl)ethoxy)benzenamine (103 mg, 0.5 mmol) in glacial acetic acid (5 mL) was heated under refluxed for 3 h under argon. The crude reaction mixture on purification using HPLC gave the title compound as brown solid (75 mg, 31%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07528143B2
Source datasetuspto-grants-2009_05
ORD IDord-4b1c936e05794d15a800e31f39b0a2de
Source noteuspto-grants-2009_05