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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1770086Generated: October 26, 2026

Ethanol → Ethylenediaminium N,N'-diacetyl-L-cystinate

https://huagongshe.com/reaction/1770086

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantEthylenediamineHCID 3301—
ReactantN,N'-Diacetyl-L-cystineHCID 6995101—
SolventWaterHCID 962—
ProductEthylenediaminium N,N'-diacetyl-L-cystinateHCID 13171883852.2%

Reaction Conditions

Temperature10 °C

Reaction Steps

To N,N'-diacetyl-L-cystine (30.9 mmol, 10 g) dissolved in 20 mL of water was added ethylenediamine (61.8 mmol, 3.73 g) and ethanol (30 mL). The solution was concentrated to a thick paste which was redissolved in 80 mL of ethanol. Crystallisation occurred after 2 hours stirring at 10° C. Filtration and drying gave 6.2 g (45%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05385904
Source datasetuspto-grants-1995_01
ORD IDord-996d62defbc54e938224987d1de1a9fe
Source noteuspto-grants-1995_01