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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1502597Generated: October 30, 2026

Sulfuric Acid → Caproyl proline

https://huagongshe.com/reaction/1502597

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantSodium HydroxideHCID 14798—
ReactantDecanoyl chlorideHCID 66982—
ReactantL-ProlineHCID 145742—
SolventWaterHCID 962—
ProductCaproyl prolineHCID 1863263392.7%

Reaction Steps

Proline (manufactured by Ajinomoto Co., Inc., 34.54 g) was dissolved in water (100 g), and decanoyl chloride (manufactured by Tokyo Chemical Industry Co., Ltd., 52.01 g) and 25% aqueous sodium hydroxide solution were added while adjusting to pH 12. The mixture was neutralized with 75% sulfuric acid, and the aqueous layer was removed. Water and ethyl acetate were further added, and the aqueous layer was removed. Ethyl acetate was evaporated under reduced pressure to give decanoyl proline (68.12 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09211245B2
Source datasetuspto-grants-2015_12
ORD IDord-c675f5da2bb54573ab36f57188f775b5
Source noteuspto-grants-2015_12