Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2307800Generated: November 3, 2026

Dichloromethane → Ethyl 3-bromo-2-(hydroxyimino)propanoate

https://huagongshe.com/reaction/2307800

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantEthyl bromopyruvateHCID 66144—
ReactantHydroxyamine hydrochlorideHCID 443297—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductEthyl 3-bromo-2-(hydroxyimino)propanoateHCID 53428735—

Reaction Steps

Ethyl bromopyruvate (5.0 mL, 39.8 mmol) was added to hydroxylamine hydrochloride (2.52 g, 36.2 mmol) in H2O (10 mL) and CHCl3 (10 mL). The reaction mixture was capped and stirred overnight at 23° C. at which time CH2Cl2 and H2O were added, the layers separated, the organics dried over Na2SO4, and the volatiles removed on a rotary evaporator to yield 7.58 g (100%) of as a white solid. 1H NMR (300 MHz, DMSO-D6) δ ppm 1.26 (t, J=7.12 Hz, 3 H) 4.20 (s, 2 H) 4.24 (m, 2 H) 13.19 (s, 1 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06831175B2
Source datasetuspto-grants-2004_12
ORD IDord-11f7e7cf57074f36a424d88f723a6e1d
Source noteuspto-grants-2004_12