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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1907685Generated: October 31, 2026

Diethyl Malonate → HCID 57950226, compound

https://huagongshe.com/reaction/1907685

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl MalonateHCID 7761—
ReactantCesium carbonateHCID 10796—
Reactant5-Chloro-2,3-difluoropyridineHCID 2783248—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 57950226HCID 5795022678.2%

Reaction Conditions

Temperature110 °C

Reaction Steps

A mixture of 3.85 g of 5-chloro-2,3-difluoropyridine, 8.80 g of diethyl malonate, 25 ml of dimethyl sulfoxide and 17.9 g of cesium carbonate was stirred for 4.5 hours at 110° C. under a nitrogen atmosphere. The reaction mixture was allowed to cool to room temperature, then, to this was added ice water, and extracted with ethyl acetate. The organic layer was washed with saturated brine twice, and dried over anhydrous magnesium sulfate, then, concentrated under reduced pressure, to obtain 5.83 g of diethyl (5-chloro-3-fluoro-2-pyridyl)malonate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598176B2
Source datasetuspto-grants-2013_12
ORD IDord-81092fb0e1364776bd408396a6e6f513
Source noteuspto-grants-2013_12