Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1905993Generated: October 31, 2026

Water → HCID 178433534, compound

https://huagongshe.com/reaction/1905993

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantBromineHCID 24408—
ReactantHCID 178467558HCID 178467558—
SolventAcetic AcidHCID 176—
SolventDichloromethaneHCID 6344—
ProductHCID 178433534HCID 17843353449.8%

Reaction Steps

A solution of bromine (19.2 g) in methylene chloride (10 ml) was dropwise added to a solution of 5-acetyl-2-hydroxyl-4-methylthiazol (15.7 g) in a mixture of methylene chloride (300 ml) and acetic acid (50 ml) at 40° C. to 44° C. with stirring. After being stirred at the same temperature for 30 minutes, the reaction mixture was poured into water (300 ml). The separated organic layer was washed with brine, dried over magnesium sulfate, and evaporated in vacuo. The residue was triturated with diisopropyl ether to give 5-(2-bromoacetyl)-2-hydroxy-4-methylthiazole (11.75 g). mp 162° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04649146
Source datasetuspto-grants-1987_03
ORD IDord-499dceba70a24f48b00b3ca9eafd598e
Source noteuspto-grants-1987_03