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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1161878Generated: October 27, 2026

Ammonium Chloride → HCID 59518945, compound

https://huagongshe.com/reaction/1161878

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantLithium diisopropylamideHCID 2724682—
Reactant4-Fluoro-3-methoxybenzonitrileHCID 2737365—
Reactant5-chloro-2,N-dimethylbenzamideHCID 23156877—
SolventTetrahydrofuranHCID 8028—
ProductHCID 59518945HCID 5951894545.2%

Reaction Conditions

Temperature-78 °C

Reaction Steps

A solution of 5-chloro-2,N-dimethylbenzamide (5.0 g, 27.2 mmol) in THF (28 mL) was cooled to −78° C. and a solution of 2M lithium diisopropylamide in THF (40.8 mL, 82 mmol) diluted with THF (68 mL) added. 4-Fluoro-3-methoxybenzonitrile (4.12 g, 27.2 mmol) in THF (28 mL) was added and the mixture stirred at −78° C. for 2.5 h. Sat. NH4Cl (aq.) was added and the mixture extracted with EtOAc (2×50 mL). A precipitate formed in the aqueous which was collected by filtration to afford 7-chloro-3-(4-fluoro-3-methoxyphenyl)-2H-isoquinolin-1-one (3.74 g, 12.3 mmol, 45%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07820649B2
Source datasetuspto-grants-2010_10
ORD IDord-5d993a13dae84d9d9aafb0d25eccdb54
Source noteuspto-grants-2010_10