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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1370025Generated: October 26, 2026

Water → Citalopram

https://huagongshe.com/reaction/1370025

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAmmonium ChlorideHCID 25517—
Reactant3-Chloromethyl-4-(4-fluoro-benzoyl)-benzonitrileHCID 9943434—
ReactantHCID 178483494HCID 178483494—
SolventTolueneHCID 1140—
SolventTetrahydrofuranHCID 8028—
ProductCitalopramHCID 277195%

Reaction Steps

A solution of 3-dimethylaminopropylmagnesium chloride (1.2 M in THF, 84 ml) was added to a cooled solution of 3-chloromethyl-4-(4-fluoro-benzoyl)-benzonitrile (25.0 g) in a mixture of toluene (175 ml) and THF (50 ml) so that the temperature did not raise above −5° C. The mixture was stirred for 2 hours at 0° C. before water (100 ml) and saturated NH4Cl solution were added to adjust the pH to 9. The phases were separated and the aqueous phase was extracted twice with toluene (200 ml). The combined organic phases were washed with water (200 ml) and concentrated in vacuo to give a viscous oil (28,0 g, 95%). Spectral and analytical data were in accordance with the literature.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06579993B2
Source datasetuspto-grants-2003_06
ORD IDord-49f37bd1cc7f49338dc80c9d350111a0
Source noteuspto-grants-2003_06