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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1437618Generated: November 2, 2026

Hydrochloric Acid → HCID 359722, compound

https://huagongshe.com/reaction/1437618

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl OxalateHCID 7268—
Reactant1,8-Diazabicyclo(5.4.0)undec-7-eneHCID 81184—
Reactant4-Chlorobenzyl cyanideHCID 241582—
SolventAcetonitrileHCID 6342—
SolventEthyl AcetateHCID 8857—
ProductHCID 359722HCID 35972254%

Reaction Steps

A 542 μL (3.63 mmol) sample of DBU was added to a solution of 500 mg (3.30 mmol) of 4-chlorophenylacetonitrile and 493 μL (3.63 mmol) of diethyloxalate in 1.6 mL of acetonitrile. After ca. 10 min, the mixture was diluted with ethyl acetate and acidified with dilute HCl. The organic phase was washed with three portions of water, dried and stripped to an oily solid. Trituration with hexane/butyl chloride yielded 414 mg, m.p. 135-136° C. A second crop of 35 mg gave a total yield of 54% of ethyl 3-(4-chlorophenyl)-3-cyano-2-oxopropanoate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07622504B2
Source datasetuspto-grants-2009_11
ORD IDord-5a38b5a4f423454b9305764ef0b4d93d
Source noteuspto-grants-2009_11