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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1690850Generated: October 31, 2026

Hydrochloric Acid → HCID 359722, compound

https://huagongshe.com/reaction/1690850

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 numberUS08153688B2
Source datasetuspto-grants-2012_04
ORD IDord-e2e22ebb436042e783128f70d5e1920a
Source noteuspto-grants-2012_04