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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2069081Generated: November 2, 2026

Sodium Sulfate → 8-Bromo-6-methoxyisoquinoline

https://huagongshe.com/reaction/2069081

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium SulfateHCID 24436—
Reactant8-Bromo-6-methoxy-1,2,3,4-tetrahydroisoquinolineHCID 67403974—
CatalystHCID 178418406HCID 178418406—
SolventTolueneHCID 1140—
Product8-Bromo-6-methoxyisoquinolineHCID 5953474735.7%

Reaction Conditions

Temperature140 °C

Reaction Steps

Sodium sulfate (2.8 g) and manganese dioxide (7.1 g; Ald) were added to a toluene (60 mL) solution of Intermediate 5 (1.99 g) and the resulting mixture was stirred at 140° C. for 24 hours. The reaction mixture was filtrated through celite followed by the addition of 2 N hydrochloric acid and the resulting mixture was washed with ether. The resulting mixture was neutralized with 5 N aqueous sodium hydroxide solution and then extracted with dichloromethane to give the title compound (698 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08299055B2
Source datasetuspto-grants-2012_10
ORD IDord-3e8e20bb7d444874a7b463aec3541926
Source noteuspto-grants-2012_10