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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1422397Generated: October 30, 2026

Bromine → Ethyl 2-bromo-4-methyl-3-oxopentanoate

https://huagongshe.com/reaction/1422397

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantEthyl isobutyrylacetateHCID 81583—
ReactantSodium AcetateHCID 517045—
SolventAcetic AcidHCID 176—
ProductEthyl 2-bromo-4-methyl-3-oxopentanoateHCID 13015595—

Reaction Conditions

Temperature10 °C

Reaction Steps

To a suspension of sodium acetate (1.9 g) in glacial acetic acid (15 ml) was added 4-methyl-3-oxo-pentanoic acid ethyl ester (2 g) and the reaction mixture cooled to 10° C. Bromine (0.7 ml) was then added dropwise. The resulting solution was allowed to warm to room temperature and stirred for 1 h. The reaction was complete (by TLC) and was concentrated in vacuum affording 3.8 g crude ethyl product which was used directly in the next synthetic step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE045323E1
Source datasetuspto-grants-2015_01
ORD IDord-1b2887cd8a4e4cb6aaa467e11a900b57
Source noteuspto-grants-2015_01