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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2051028Generated: October 31, 2026

Cysteamine → HCID 17882709, compound

https://huagongshe.com/reaction/2051028

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCysteamineHCID 6058—
Reactantepsilon-CAPROLACTONEHCID 10401—
CatalystZincHCID 23994—
SolventWaterHCID 962—
ProductHCID 17882709HCID 17882709—

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture, under an inert atmosphere, of 5 g of cysteamine and 7.2 cm3 of ε-caprolactone is stirred for 6 hours at ambient temperature. It is then left to stand overnight, after which the mixture is heated for 4 hours at a temperature of about 60° C. At the end of this time all the ε-caprolactone is transformed. The mixture is then poured into 100 cm3 of water to which 10 g of acid resin, "Dowex 50" are added and then 3 g of powdered zinc. The whole is stirred for 4 hours at ambient temperature. The water is then removed under reduced pressure and there are obtained 10 g of 6-hydroxy N-(2-mercaptoethyl) caproamide in the form of a viscous liquid at ambient temperature whose NMR'H spectrum and thiol dosages and residual amine correspond to the expected structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05015767
Source datasetuspto-grants-1991_05
ORD IDord-e27e7742a72c44318a2711b9898e154d
Source noteuspto-grants-1991_05