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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1741486Generated: November 2, 2026

Hydrochloric Acid → (4R)-4-Hydroxy-L-proline methyl ester

https://huagongshe.com/reaction/1741486

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantL-HydroxyprolineHCID 5810—
Product(4R)-4-Hydroxy-L-proline methyl esterHCID 7015125—

Reaction Steps

A suspension of 4(R)-hydroxyproline (35.12 g, 267.8 mmol) in methanol (500 ml) was saturated with gasseous hydrochloric acid. The resulting solution was allowed to stand for 16 hrs and the solvent evaporated in vacuo to afford the title compound as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05972984
Source datasetuspto-grants-1999_10
ORD IDord-2bd27c9a5d2e4399b748009c2accb232
Source noteuspto-grants-1999_10