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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2249579Generated: October 30, 2026

Ethanol → Ethyl 4-nitro-3-phenyl-L-alaninate monohydrochloride

https://huagongshe.com/reaction/2249579

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant4-Nitro-3-phenyl-L-alanineHCID 13706—
ReactantThionyl ChlorideHCID 24386—
ProductEthyl 4-nitro-3-phenyl-L-alaninate monohydrochlorideHCID 6453710—

Reaction Steps

4-nitrophenylalanine (5 g, 1 eq, mmol) was added in portions to a solution of dry ethanol (50 mL) and thionylchloride (5 mL) at −5° C. It was stirred at that temperature for another one hour, followed by stirring at RT for 16 h. The reaction mixture was condensed on rotavapour, azeotroped with toluene, and then dried over high vaccum pump to obtain 4-nitrophenylalanine ethyl ester hydrochloride as white solid (quantitative yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07314889B2
Source datasetuspto-grants-2008_01
ORD IDord-d899ea73723646ffa3614f7d692e309a
Source noteuspto-grants-2008_01