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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1522839Generated: October 29, 2026

Water → HCID 135907980, compound

https://huagongshe.com/reaction/1522839

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
ReactantBoron tribromideHCID 25134—
ReactantHCID 67465008HCID 67465008—
SolventDichloromethaneHCID 6344—
ProductHCID 135907980HCID 13590798070.2%

Reaction Steps

6-Methoxy-1-(2-(piperidin-1-yl)ethoxy)isoquinoline (0.60 g, 2.10 mmol) was dissolved in 30 mL of dry CH2Cl2 at room temperature. BBr3 (10.50 mmol, 10.50 mL of 1.0 M CH2Cl2 solution) was added dropwise with stirring via a syringe at room temperature. The reaction solution was allowed to stir overnight at room temperature. The mixture was cooled to 0° C. in an ice bath and hydrolyzed by adding water. EtOAc was added to partition the solution. The organic layer was separated; the aqueous layer was extracted with EtOAc twice. The organic layers were combined, washed with brine and dried over anhydrous MgSO4. The solvent was removed under vacuum. The residue was purified by flash column chromatography using silica-gel with CH3OH/CH2Cl2 (1/9 v/v) to give a white solid product, 40 g, 70.2% yield. MS: 273.2 [M+H]+. 1H NMR (DMSO-d6, 300 MHz) δ 10.29 (s, 1H), 8.05 (d, 1H, J=8.7 Hz), 7.32 (d, 1H, J=7.2 Hz), 6.93 (d, 1H, J=8.4 Hz), 6.87 (s, 1H), 6.43 (d, 1H, J=7.2 Hz), 4.03 (s, br, 2H), 2.62 (s, br, 2H), 2.50 (s, br, 2H), 1.49-1.39 (m, 6H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09078888B2
Source datasetuspto-grants-2015_07
ORD IDord-82f5202037c640ad973f3287cb57b553
Source noteuspto-grants-2015_07