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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 42218Generated: October 25, 2026

Ammonium Chloride → 1-Benzyl-4-bromoisoquinoline

https://huagongshe.com/reaction/42218

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant4-Bromo-1-chloroisoquinolineHCID 459766—
ReactantHCID 178419772HCID 178419772—
CatalystHCID 178418397HCID 178418397—
SolventTetrahydrofuranHCID 8028—
Product1-Benzyl-4-bromoisoquinolineHCID 2362841825%

Reaction Conditions

Temperature25 °C

Reaction Steps

In a 40 mL vial 490 mg (2.00 mmol) 1-chloro-4-bromo-isoquinoline and 40 mg (0.034 mmol) tetrakis(triphenylphosphine)palladium(0) is added to 4 mL THF. After all solids are dissolved, 8 mL of 0.5 M (4.0 mmol) benzyl zinc bromide in THF is slowly added by syringe and the resulting reaction mixture is stirred at 25° C. After 12 hrs, the mixture is poured into cold solution of saturated NH4Cl and extracted with EtOAc. The organic extracts are concentrated in vacuo and the resulting residue is purified by silica chromatography using a heptane/EtOAc gradient. Pure fractions are pooled and evaporated to give 150 mg (0.50 mmol) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536168B2
Source datasetuspto-grants-2013_09
ORD IDord-219230f852f44f51bfb10fb2f15a93bf
Source noteuspto-grants-2013_09