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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 575565Generated: October 29, 2026

Water → 4-Bromo-2-methyl-6-(6-methylpyridin-3-yl)isoquinolin-1-one

https://huagongshe.com/reaction/575565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium HydroxideHCID 14798—
ReactantBromineHCID 24408—
Reactant2-Methyl-6-(6-methylpyridin-3-yl)isoquinolin-1-oneHCID 118022335—
SolventAcetic AcidHCID 176—
Product4-Bromo-2-methyl-6-(6-methylpyridin-3-yl)isoquinolin-1-oneHCID 11802160567.2%

Reaction Steps

Bromine (97 mg, 0.61 mmol) in acetic acid (0.61 mL) was added dropwise to 2-methyl-6-(6-methylpyridin-3-yl)isoquinolin-1-one (160 mg, 0.64 mmol) in acetic acid (6 mL) at 0° C. After stirring at room temperature for 17 min, water (22 mL) was added and the pH was adjusted to 7-8 with 1M NaOH. Extractive work up with ethyl acetate and purification by silica gel chromatography (PE:EA=2:1 to 3:2) gave the title compound (135 mg, 64.3%) as a yellow solid. LCMS: 329.0 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09034900B2
Source datasetuspto-grants-2015_05
ORD IDord-a9e7d44a21724bc3a76555f1455af226
Source noteuspto-grants-2015_05