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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 748579Generated: October 31, 2026

Sodium Hydroxide → 2H-Azepin-2-one, 3-aminohexahydro-

https://huagongshe.com/reaction/748579

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantL-Lysine monohydrochlorideHCID 69568—
Solvent1-PentanolHCID 6276—
Product2H-Azepin-2-one, 3-aminohexahydro-HCID 102463—

Reaction Conditions

Temperature137 °C

Reaction Steps

30 mmols of L-lysine hydrochloride 1 is neutralized with 30 mmols of NaOH and then 120 ml of 1-pentanol is added. This mixture is heated to 137° C. and is refluxed for 60 hours. The yield of α-amino-ε-caprolactam 2 produced by this reaction is about 93%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07399855B2
Source datasetuspto-grants-2008_07
ORD IDord-055adfd225ae4e80a82c7f98214c1d78
Source noteuspto-grants-2008_07