Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 847554Generated: November 2, 2026

Phenacyl bromide → HCID 19753816, compound

https://huagongshe.com/reaction/847554

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenacyl bromideHCID 6259—
ReactantTriethylamineHCID 8471—
Reactant3-(Methylamino)propanoic acid, N-BOC protectedHCID 2760952—
SolventEthyl AcetateHCID 8857—
ProductHCID 19753816HCID 1975381688.6%

Reaction Steps

To a mixture of N-t-butoxycarbonyl-N-methyl-β-alanine (6.097 g) and triethylamine (4.18 ml) in ethyl acetate (60 ml) was added 2-bromoacetophenone (5.972 g) portionwise at 0°-5° C. After being stirred over night at ambient temperature, the solvent was evaporated and the resulting residue was dissolved in ethyl acetate (200 ml). The solution was washed with 0.5 N hydrochloric acid (200 ml), water (200 ml) aqueous sodium bicarbonate (200 ml), water (200 ml) and brine (200 ml) successively, and dried over magnesium sulfate. Evaporation of the solvent gave N-t-butoxycarbonyl-N-methyl-β-alanine phenacyl ester (8.54 g) as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05142048
Source datasetuspto-grants-1992_08
ORD IDord-60486e339cb340efab775e4b3ea51a07
Source noteuspto-grants-1992_08