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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 709303Generated: October 30, 2026

Potassium Carbonate → HCID 67347178, compound

https://huagongshe.com/reaction/709303

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-MethylpiperazineHCID 53167—
ReactantHCID 18690998HCID 18690998—
ReactantHCID 87356468HCID 87356468—
SolventAcetonitrileHCID 6342—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67347178HCID 6734717863.4%

Reaction Steps

To a solution of ethyl 5-amino-2-methylbenzoate (500 mg, 2.79 mmol) and TEA (0.78 mL, 5.58 mmol) in dried THF (9 mL) was added 4-(chloromethyl)-3-(trifluoromethyl)benzoyl chloride (714 mg, 2.79 mmol). The reaction mixture was stirred for 5 hours at room temperature after which, it was concentrated under reduced pressure. To a solution of the reaction mixture in acetonitrile (10 mL) were added methyl piperazine (558 mg, 5.58 mmol) and K2CO3 (1.1 g, 8.38 mmol). The reaction mixture was stirred for 8 hours at room temperature. The reaction mixture was partitioned between ethyl acetate and water. The organic layer was separated and the aqueous layer was extracted with ethyl acetate. The combined organic extracts were washed with brine, dried over MgSO4, celite filtered and concentrated under reduced pressure. The crude product was purified by flash chromatography using (3% to 7% Methanol/CH2Cl2) as a solvent to afford title compound (820 mg, 63% yield). MS m/z: 464 [M+1].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09180127B2
Source datasetuspto-grants-2015_11
ORD IDord-60f6154566764cdc8402ba0e7afbc58c
Source noteuspto-grants-2015_11