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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1601905Generated: October 31, 2026

Hydrochloric Acid → 5-[2-(4-Benzylpiperid-1-yl)ethyl]-3-[3,5-bis(trifluoromethyl)benzyl]-5-(3,4-dichlorophenyl)tetrahydro-2H-1,3-oxazin-2-one hydrochloride

https://huagongshe.com/reaction/1601905

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium IodideHCID 4875—
Reactant4-BenzylpiperidineHCID 31738—
Reactant3-[3,5-Bis(trifluoromethyl)benzyl]-5-(3,4-dichlorophenyl)-5-[2-(methanesulfonyloxy)ethyl]tetrahydro-2H-1,3-oxazin-2-oneHCID 15886677—
SolventDiethyl EtherHCID 3283—
SolventDimethylformamideHCID 6228—
Product5-[2-(4-Benzylpiperid-1-yl)ethyl]-3-[3,5-bis(trifluoromethyl)benzyl]-5-(3,4-dichlorophenyl)tetrahydro-2H-1,3-oxazin-2-one hydrochlorideHCID 2120047827.2%

Reaction Steps

This compound is prepared by the procedure described in step D of EXAMPLE 4 from 0.3 g of 4-benzylpiperidine, 0.8 g of the compound obtained in step C of EXAMPLE 4, 0.24 g of potassium iodide and 5 ml of DMF. The residue is chromatographed on silica H using DCM and then a DCM/MeOH mixture (96/4; v/v) as the eluent. The product obtained is taken up with a saturated solution of gaseous HCl in ether and the precipitate formed is wrung to give 0.13 g of the expected product. M.p.=124° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05977359
Source datasetuspto-grants-1999_11
ORD IDord-e168cdd40623446aaeab7e30f629fb29
Source noteuspto-grants-1999_11