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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1399889Generated: October 30, 2026

Sodium hydride → HCID 86729285, compound

https://huagongshe.com/reaction/1399889

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
Reactant2-Chloromethyl 2-(trimethylsilyl)ethyl etherHCID 2724271—
Reactant4-Bromo-1H-benzimidazoleHCID 11252584—
SolventTetrahydrofuranHCID 8028—
ProductHCID 86729285HCID 8672928590%

Reaction Conditions

Temperature0 °C

Reaction Steps

To a solution of 4-bromo-1H-benzo[d]imidazole (1.1 g, 5.6 mmol) in THF was added NaH (448 mg, 11.2 mmol) at 0° C. After stirring at for 30 minutes at room temperature 0° C., SEM-Cl (1.4 g, 8.4 mmol) was added to the mixture at 0° C. The mixture was then stirred at room temperature for 16 h, at which time TLC showed the completion of the reaction. The reaction was quenched by addition of aq. NH4Cl and the mixture extracted with ethyl acetate with the combined organic layers were dried over anhydrous Na2SO4 and concentrated in vacuum to give the desired product and used in the next step without further purification (1.65 g, Yield 90%). LCMS (m/z): 229.0 (M+1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08906900B2
Source datasetuspto-grants-2014_12
ORD IDord-eaa7fc6237234e7ca808f07c5c4e1d34
Source noteuspto-grants-2014_12