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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1278957Generated: November 4, 2026

Hydrochloric Acid → HCID 12052987, compound

https://huagongshe.com/reaction/1278957

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 12974058HCID 12974058—
SolventDiethyl EtherHCID 3283—
ProductHCID 12052987HCID 12052987—

Reaction Conditions

Temperature92.5 °C

Reaction Steps

A mixture of ethyl 2-methyl-3-[1-phenylpyrrol-2-yl]propanoate (0.164 mol, 42.1 g) and Claisen's reagent (78 ml) were heated at 90-95° C. for 1 h. After cooling to room temperature, the solution was diluted with 75 g of crushed ice and acidified to pH 1-2 with 6 N HCl. The brown oily precipitate was dissolved in ether, washed with brine solution, dried over MgSO4, and evaporated to an orange oil (21.65 g). The title compound was analysed by 1H-NMR spectroscopy.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06444833B1
Source datasetuspto-grants-2002_09
ORD IDord-f1da112343894530bb30c71555bc4e26
Source noteuspto-grants-2002_09