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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1353146Generated: November 1, 2026

Hydrochloric Acid → HCID 17860739, compound

https://huagongshe.com/reaction/1353146

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridinium chlorideHCID 10176127—
ReactantHCID 17860756HCID 17860756—
SolventWaterHCID 962—
ProductHCID 17860739HCID 17860739—

Reaction Conditions

Temperature180 °C

Reaction Steps

To pyridine hydrochloride (200 g), 3-(5-methoxy-3,4-dihydronaphthalen-1-yl)propanoic acid (25.1 g; known compound (see J. Chem. Soc. Perkin Trans. I., 1739–1742(1987)) was added, followed by stirring at 180° C. for 3 hours. The reaction mixture was cooled to room temperature, and diluted with water. The aqueous layer was acidified with a concentrated hydrochloric acid. The aqueous layer was extracted with an ethyl acetate. The extract was extracted with a saturated aqueous sodium hydrogen carbonate solution. The combined aqueous layer was acidified with a concentrated hydrochloric acid, followed by extracting with an ethyl acetate. The combined organic layer was washed with a saturated saline, dried with anhydrous sodium sulfate, and concentrated under reduced pressure to thereby obtain the title compound (11.8 g) having the following physical data.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07220864B2
Source datasetuspto-grants-2007_05
ORD IDord-bbc8a4b374e34ad2a2c7227fe4e6c813
Source noteuspto-grants-2007_05