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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1066188Generated: November 2, 2026

Hydrochloric Acid → HCID 21198552, compound

https://huagongshe.com/reaction/1066188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 15818985HCID 15818985—
SolventDichloromethaneHCID 6344—
ProductHCID 21198552HCID 21198552—

Reaction Steps

To 1.46 g of 4-(2-carboxyethyl)-1-[(ethoxycarbonyl)methyl]-piperidine in 10 ml of methylene chloride is added 1 ml of saturated ethereal hydrochloric acid. 1.2 g of thionyl chloride are added and the mixture is stirred for 3 hours at ambient temperature. The reaction mixture is concentrated by evaporation and the residue is mixed twice with toluene and again concentrated by evaporation. The crude product is reacted further in Example 1 without purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06242466B1
Source datasetuspto-grants-2001_06
ORD IDord-e9573fe2625d400dbaa13305e8498c87
Source noteuspto-grants-2001_06