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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 966007Generated: October 31, 2026

Barium hydroxide, octahydrate → HCID 178424685, compound

https://huagongshe.com/reaction/966007

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBarium hydroxide, octahydrateHCID 17749109—
ReactantMesitylboric acidHCID 22237855—
ReactantHCID 178433401HCID 178433401—
CatalystHCID 178418397HCID 178418397—
SolventWaterHCID 962—
Solvent1,1-DimethoxyethaneHCID 10795—
ProductHCID 178424685HCID 17842468570.8%

Reaction Steps

A solution of 5-bromo-2-methyl-4-nitroimidazole (5.0 g, 24 mmol), mesitylboric acid (3.96 g, 24 mmol), Pd(PPh3)4 (1.4 g, 1.2 mmol) and barium hydroxide octahydrate (19.1 g, 61 mmol) in 2,2-dimethoxyethane (150 mL) and water (25 mL) was heated at reflux for four hours. After filtered through Celite, the filtrate was diluted with ethyl acetate, washed with brine, dried over anhydrous magnesium sulfate and evaporated. The resulting crystals were washed with ethyl acetate, to give the title compound (4.17 g) as white crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06951865B2
Source datasetuspto-grants-2005_10
ORD IDord-75cdb05fc52c4f58907e73a86e26026b
Source noteuspto-grants-2005_10