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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1267684Generated: November 1, 2026

N-Acetyl-DL-methionine → L-Methionine

https://huagongshe.com/reaction/1267684

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-Acetyl-DL-methionineHCID 6180—
SolventWaterHCID 962—
ProductL-MethionineHCID 613799.7%

Reaction Conditions

Temperature180 °C

Reaction Steps

A mixture of 19.1 grams (g) of N-acetyl-D,L-methionine and 150 milliliters (ml) of water was heated for 1 hour at 180° C. in a laboratory autoclave. After cooling to room temperature, 6.1 g of crystalline methionine (content, determined by HPLC: 99.7%) were obtained. A further 5.9 g of methionine and 3.4 g of acetyl-methionine were contained in the filtrate. The conversion of the acetyl compound was 82.2%, the selectivity of the reaction was 97.8%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06552222B2
Source datasetuspto-grants-2003_04
ORD IDord-256686a159f44c9f8233b77b2292c0d0
Source noteuspto-grants-2003_04