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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 593260Generated: October 30, 2026

Benzyl Bromide → HCID 86703335, compound

https://huagongshe.com/reaction/593260

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
ReactantCesium carbonateHCID 10796—
ReactantHCID 55297322HCID 55297322—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
ProductHCID 86703335HCID 8670333510.4%

Reaction Steps

As presented in the following reaction formula, a mixture of 5-amino-4-fluoro-2,3-dihydro-1H-inden-1-one (2.3 g, 14 mmol), cesium carbonate (Cs2CO3; 12 g, 28 mmol) and benzyl bromide (0.17 g, 72 mmol) in acetonitrile (CH3CN; 20 mL) was stirred under reflux for 48 hours. The mixture was concentrated to obtain the residue, which was dissolved in water (20 mL). The resulting solution was extracted three times with 20 mL of ethyl acetate. The combined organic phase was washed with saturated brine (50 mL), and dried and concentrated with anhydrous sodium sulfate to thereby give a crude product, which was purified by pre-TLC to give 5-(benzylamino)-4-fluoro-2,3-dihydro-1H-inden-1-one (370 mg, yield: 10%) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09242928B2
Source datasetuspto-grants-2016_01
ORD IDord-0bec00afdcb343b5b5471eeb9024b7c5
Source noteuspto-grants-2016_01