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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 612851Generated: November 2, 2026

Hydrochloric Acid → HCID 86754981, compound

https://huagongshe.com/reaction/612851

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantToluene-4-sulfonic acid (R)-1-benzyl-pyrrolidin-3-yl esterHCID 10471906—
ReactantHCID 178418361HCID 178418361—
CatalystHCID 178418390HCID 178418390—
SolventEthanolHCID 702—
ProductHCID 86754981HCID 86754981—

Reaction Steps

A mixed solution obtained by mixing 3.0 g of 100% pure (R)-1-benzyl-3-p-toluenesulfonyloxypyrrolidine with 3.0 ml of ethanol and adding dropwise 0.80 ml of 35% aqueous hydrochloric acid thereto with cooling on an ice-water bath was charged, together with 150 mg of moist 5% palladium-carbon (water content 52% by weight), into an autoclave, hydrogen was introduced thereinto and the autoclave was heated to raise the temperature to 60 and the pressure to 203 kPa, and the reaction was allowed to proceed for 4.5 hours. Hydrogen absorption came to an end in 2.5 hours after the start of hydrogen introduction. After completion of the reaction, the reaction mixture was treated in the same manner as in Example 4 to give 2.51 g (yield: 86 mole percent) of (R)-3-p-toluenesulfonyloxypyrrolidine hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06005119
Source datasetuspto-grants-1999_12
ORD IDord-af582adf6d6841b886138afea909c74d
Source noteuspto-grants-1999_12