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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2103927Generated: November 2, 2026

Hydrochloric Acid → HCID 67050115, compound

https://huagongshe.com/reaction/2103927

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantImidazoleHCID 795—
ReactantAmmonium ChlorideHCID 25517—
Reactanttert-Butyldimethylsilyl chlorideHCID 28928—
Reactant4-Hydroxymethyl-3-nitrobenzoic acidHCID 1501892—
SolventDimethylformamideHCID 6228—
ProductHCID 67050115HCID 6705011573%

Reaction Steps

To a solution of 4-hydroxymethyl-3-nitrobenzoic acid (1.50 g, 7.62 mmol) and imidazole (1.55 g, 22.8 mmol) in dimethylformamide (20 mL) was added tert-butyldimethyl-silyl chloride (2.23 g, 14.8 mmol), and then the reaction mixture was stirred at room temperature for 15 hours. To the reaction mixture, saturated ammonium chloride aqueous solution was added and acidified with 1 M hydrochloric acid. The aqueous layer was extracted with ethyl acetate three times. The combined organic layer was washed with saturated ammonium chloride aqueous solution, water and brine, dried with sodium sulfate, filtered, and concentrated under the reduced pressure. The residue was purified by silica gel column chromatography to give the desired product as a white solid (1.73 g, yield 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07576115B2
Source datasetuspto-grants-2009_08
ORD IDord-e0a6ddfee96e4652a26bbccf06a412f0
Source noteuspto-grants-2009_08