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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1775745Generated: October 31, 2026

Methanol → L-Methionine, methyl ester, hydrochloride

https://huagongshe.com/reaction/1775745

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantL-MethionineHCID 6137—
ReactantThionyl ChlorideHCID 24386—
ProductL-Methionine, methyl ester, hydrochlorideHCID 1143557998%

Reaction Steps

L-Methionine (0.5 g, 1 equivalent) was suspended in methanol (30 ml C=0.1M) in a 100 ml flask equipped with a magnetic stirrer and placed under nitrogen. Thionyl chloride (0.5 ml, 2 equivalents) was added to the solution dropwise at 0° C. then heated under reflux for 16 hours. The reaction mixture was then evaporated to yield a pale yellow solid. The solid was triturated with hot diethyl ether and the solution discarded to leave the title compound 2′ a white solid which was further dried under vacuum. (0.65561 g, 98% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09260460B2
Source datasetuspto-grants-2016_02
ORD IDord-d9b156954b6d4345b048cb2c749d6a70
Source noteuspto-grants-2016_02