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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1828076Generated: October 30, 2026

Benzyl Bromide → HCID 178478223, compound

https://huagongshe.com/reaction/1828076

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzyl BromideHCID 7498—
ReactantPotassium CarbonateHCID 11430—
Reactant4-Chloro-2-(1H-pyrazol-3-yl)phenolHCID 178516062—
SolventAcetoneHCID 180—
ProductHCID 178478223HCID 178478223—

Reaction Steps

To a stirred solution of 4-chloro-2-(1H-pyrazol-3-yl)-phenol (1 g, CAS 18704-67-1) at r.t. in acetone (20 ml) under an argon atmosphere were added K2CO3 (746 mg) and benzylbromid (0.61 ml). The reaction mixture was stirred at r.t. for 21 h. The solids were filtered off and washed with acetone. The filtrate was concentrated to leave a light orange oil. The crude product was purified by chromatography (silica gel, cyclohexane/ethyl acetate 2:1) to give 3-(2-benzyloxy-5-chloro-phenyl)-1H-pyrazole as off-white solid. MS 284.8 ([M+H]+)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07056932B2
Source datasetuspto-grants-2006_06
ORD IDord-74ee45f55a204c1eb34118994f0c0df5
Source noteuspto-grants-2006_06