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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 349733Generated: October 30, 2026

Citric Acid → HCID 609964, compound

https://huagongshe.com/reaction/349733

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCitric AcidHCID 311—
ReactantPyrrolidineHCID 31268—
ReactantN-(2-fluoro-5-nitrophenyl)acetamideHCID 2779405—
SolventDichloromethaneHCID 6344—
ProductHCID 609964HCID 609964—

Reaction Conditions

Temperature90 °C

Reaction Steps

0.5 g (2.5 mmol) of N-(2-fluoro-5-nitrophenyl)acetamide was admixed in a pressure reaction vessel with 1 ml (12.6 mmol) of pyrrolidine and stirred at 90° C. for 2.5 hours. After the mixture had been cooled, it was diluted with 20 ml of dichloromethane, adjusted to pH 4 using citric acid solution (10%) and washed four times with water. After the organic phase had been dried, the solvent was removed under reduced pressure. In the aqueous phase, a solid is precipitated out. It was filtered off with suction and washed with water, and combined with the residue from the organic phase (yield 0.58 g, 93%). The product was reacted in stage c without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07179941B2
Source datasetuspto-grants-2007_02
ORD IDord-a3e8ed503ed24238a144129b55c1b3fd
Source noteuspto-grants-2007_02