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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1792790Generated: November 4, 2026

Oxalyl chloride → HCID 22024981, compound

https://huagongshe.com/reaction/1792790

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant2-Methyl-1-(quinolin-2-yl)-1H-pyrrole-3-carboxylic acidHCID 22024977—
SolventDichloromethaneHCID 6344—
ProductHCID 22024981HCID 22024981104.2%

Reaction Conditions

Temperature20 °C

Reaction Steps

10 mL (114.2 mmol) of oxalyl chloride are added at 20° C. under an argon atmosphere to 1.8 g (6.25 mmol) of 3-carboxy-2-methyl-1-(quinol-2-yl)-1H-pyrrole dissolved in 120 mL of dichloromethane. After stirring at 20° C. for 16 hours, the reaction mixture is concentrated to dryness under reduced pressure (2.7 kPa) to give 2 g of 3-chlorocarbonyl-2-methyl-1-(quinol-2-yl)-1H-pyrrole hydrochloride in the form of a beige-coloured solid which is used directly in the following step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07078414B2
Source datasetuspto-grants-2006_07
ORD IDord-52db778ef2ac4a7ab922a2d06b8de288
Source noteuspto-grants-2006_07