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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 890185Generated: October 29, 2026

Barium hydroxide, octahydrate → HCID 178424685, compound

https://huagongshe.com/reaction/890185

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 numberUS06995163B2
Source datasetuspto-grants-2006_02
ORD IDord-522bea66e77c4c6fb59c2bdab168f2d8
Source noteuspto-grants-2006_02