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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 353605Generated: October 25, 2026

Water → Citalopram

https://huagongshe.com/reaction/353605

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 (1.2M 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 numberUS06753433B2
Source datasetuspto-grants-2004_06
ORD IDord-8fe10d7afa064bd0b37a5530ba77ebcb
Source noteuspto-grants-2004_06