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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 929486Generated: October 29, 2026

Oxalyl chloride → HCID 71556273, compound

https://huagongshe.com/reaction/929486

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant3-hydroxy-1,4-diphenyl-1H-pyrrole-2,5-dioneHCID 54684020—
SolventDimethylformamideHCID 6228—
ProductHCID 71556273HCID 71556273—

Reaction Steps

After dissolving compound 6a (2.00 g, 7.54 mmol) in MC (10 ml) and anhydrous DMF (10 ml), oxalyl chloride (1.90 g, 15.0 mmoL) was added thereto and the agitation for 30 minutes was carried out. After the identification of the reaction progress with TLC, the reaction was terminated. Then, three times extractions were carried out with EA and three times washings were carried out with brine. Water was removed by using Na2SO4, solvents were removed and then, the column chromatography was carried out with EA/HX ( 1/9). As the result, Compound 7a was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09296690B2
Source datasetuspto-grants-2016_03
ORD IDord-b842b4e7ae044cd4b8d59770d6bcedb5
Source noteuspto-grants-2016_03