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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2425988Generated: November 1, 2026

Hydrochloric Acid → 1-(2-(1-(3,5-Dichlorophenyl)ethylamino)-4-(piperazin-1-yl)phenyl)-2,2,2-trifluoroethanone hydrochloride

https://huagongshe.com/reaction/2425988

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactantt-Butyl 4-(3-(1-(3,5-dichlorophenyl)ethylamino)-4-(2,2,2-trifluoroacetyl)phenyl)piperazine-1-carboxylateHCID 58707254—
SolventDiethyl EtherHCID 3283—
SolventDichloromethaneHCID 6344—
Product1-(2-(1-(3,5-Dichlorophenyl)ethylamino)-4-(piperazin-1-yl)phenyl)-2,2,2-trifluoroethanone hydrochlorideHCID 86607657193.3%

Reaction Steps

To a solution of t-butyl 4-(3-(1-(3,5-dichlorophenyl)ethylamino)-4-(2,2,2-trifluoroacetyl)phenyl)piperazine-1-carboxylate (50.1 mg, 0.09 mmol) in dichloromethane (2.0 mL) was added a saturated solution of HCl in diethyl ether (15 mL). The reaction mixture was stirred for 2 hours. The solvent was removed by rotary evaporation to afford the title compound (42.0 mg, 95% yield). 1H NMR (400 MHz, CD3OD): δ 7.67 (d, 1H), 7.37 (s, 2H), 7.35 (s, 1H), 6.41 (d, 1H), 5.84 (s, 1H), 4.79 (m, 1H), 3.57 (m, 4H), 3.25 (m, 4H), 1.61 (d, 3H); MS (ESI) m/z: Calculated for C20H21Cl2F3N3O: 446.1; Observed: 446.5 (M++1) [corresponding to the free base].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07968538B2
Source datasetuspto-grants-2011_06
ORD IDord-b9c35b011e154f08ae834c5edc87c76e
Source noteuspto-grants-2011_06