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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2232016Generated: October 27, 2026

Potassium Carbonate → HCID 21284141, compound

https://huagongshe.com/reaction/2232016

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant2-Chloro-4-(trifluoromethyl)phenolHCID 2736603—
ReactantMethyl 4,6-dichloropyridine-2-carboxylateHCID 18922464—
SolventDimethylformamideHCID 6228—
ProductHCID 21284141HCID 21284141—

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture consisting of 2.06 gm (0.01 mol) of methyl 4,6-dichloro-picolinate, 2.15 gm (0.011 mol) of 2-chloro-4-trifluoromethyl-phenol, 1.5 gm of pulverized potassium carbonate and 5 ml of dimethylformamide was heated at 120° C. for one hour, while stirring. The mixture solidified. The solid mass was stirred and decanted several times with ice water, then acidified with acetic acid, and finally extracted with ethyl acetate. The organic phase was separated, washed with water and dried with sodium sulfate. The solvent was distilled off, and the residual oil was purified by chromatography on 40 gm of silicagel (eluant: Diisopropyl ether). 1.4 gm (38% of theory) of the title compound were obtained as a virtually colorless oil. Rf -value: 0.48 (prepared thin-layer chromatography plates manufactured by E. Merck, Darmstadt, Germany, with silicagel 60-F-254. Eluant: Acetone/diisopropyl ether 1:2; the spots are visible in ultraviolet light at 254 μm).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04786317
Source datasetuspto-grants-1988_11
ORD IDord-73dc9a4619274bc190c2e4f61a6b4fd5
Source noteuspto-grants-1988_11