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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2201541Generated: October 28, 2026

Methanol → HCID 178522990, compound

https://huagongshe.com/reaction/2201541

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantBoron tribromideHCID 25134—
Reactant5-Bromo-N-(4-fluorobenzyl)-2-methoxynicotinamideHCID 117771597—
SolventDichloromethaneHCID 6344—
ProductHCID 178522990HCID 17852299095%

Reaction Steps

BBr3 (20 mL) was added dropwise to a mixture of compound 5-bromo-N-(4-fluorobenzyl)-2-methoxynicotinamide (2.0 g, 5.9 mmol) in DCM (10 mL) at −78° C. The mixture was stirred at RT for 10 h, and then MeOH (20 mL) was added to quench the reaction. The mixture was concentrated in vacuum to give the product of 5-bromo-N-(4-fluorobenzyl)-2-hydroxynicotinamide (1.8 g, yield: 95%). 1H-NMR (DMSO-d6, 400 MHz) δ 12.9 (s, 1H), 10.0 (t, J=4.8 Hz, 1H), 8.30 (d, J=2.8 Hz, 1H), 8.02 (s, 1H), 7.34 (dd, J=6.0, 8.8 Hz, 2H), 7.15 (d, J=8.8 Hz, 2H), 4.50 (s, 2H). MS (M+H)+: 325/327

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09364482B2
Source datasetuspto-grants-2016_06
ORD IDord-785262c535e0470c91b6d65725754dfe
Source noteuspto-grants-2016_06