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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 638527Generated: October 25, 2026

Sodium Hydroxide → L-Leucine

https://huagongshe.com/reaction/638527

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantN-Acetyl-L-leucineHCID 70912—
ReactantN-AcetylisoleucineHCID 7036275—
SolventWaterHCID 962—
ProductL-LeucineHCID 6106—

Reaction Conditions

Temperature36 °C

Reaction Steps

86.6 grams of this mixture of equal parts of N-acetyl-leucine and N-acetyl-isoleucine were suspended in 400 ml of water and adjusted to pH 7.0 with 50% aqueous sodium hydroxide. There were added 50 mg of CoCl2X6H2O and 50 mg of commerical pig kidney acylase (1200 U/mg) and the mixture was filled up to 500 ml with water. The clear solution was stirred at 36° C. for 6 hours. By filtering with suction, washing and drying there were obtained 17.9 grams of pure L-leucine having a rotary value of [α]D25 =+15.9°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04562153
Source datasetuspto-grants-1985_12
ORD IDord-1d3a85980dba4ee1a0ce9052fe130086
Source noteuspto-grants-1985_12