Hydrochloric Acid → (S)-3-(4-bromo-2-fluoro-5-methylphenoxy)-1-(piperidin-4-yl)pyrrolidin-2-one hydrochloride

HRID 407985Notes

Reaction equation

HRID 407985 reaction equation
[Br:1][C:2]1[C:27]([CH3:28])=[CH:26][C:5]([O:6][C@H:7]2[CH2:11][CH2:10][N:9]([CH:12]3[CH2:17][CH2:16][N:15](C(OC(C)(C)C)=O)[CH2:14][CH2:13]3)[C:8]2=[O:25])=[C:4]([F:29])[CH:3]=1.[ClH:30]>C(Cl)Cl.CO.O1CCOCC1>[ClH:30].[Br:1][C:2]1[C:27]([CH3:28])=[CH:26][C:5]([O:6][C@H:7]2[CH2:11][CH2:10][N:9]([CH:12]3[CH2:17][CH2:16][NH:15][CH2:14][CH2:13]3)[C:8]2=[O:25])=[C:4]([F:29])[CH:3]=1

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 86688115(S)-tert-butyl 4-(3-(4-bromo-2-fluoro-5-methylphenoxy)-2-oxopyrrolidin-1-yl)piperidine-1-carboxylate

Product 1

HCID 67469732(S)-3-(4-bromo-2-fluoro-5-methylphenoxy)-1-(piperidin-4-yl)pyrrolidin-2-one hydrochlorideYield 101%

Reagents, catalysts & solvents 2

HCID 312751,4-DioxaneSolventHCID 21226129Dichloromethane methanolSolvent

Procedure

(S)-tert-butyl 4-(3-(4-bromo-2-fluoro-5-methylphenoxy)-2-oxopyrrolidin-1-yl)piperidine-1-carboxylate (2.3 g, 4.9 mmol) was dissolved in CH2Cl2:MeOH (9:1, 50 mL). 4N HCl in dioxane (10 mL) was added and the reaction stirred at ambient temperature overnight. The reaction was concentrated to afford crude (S)-3-(4-bromo-2-fluoro-5-methylphenoxy)-1-(piperidin-4-yl)pyrrolidin-2-one hydrochloride (2.0 g, 4.9 mmol, 101% yield) which was used without further purification.

Workup

  1. concentrationThe reaction was concentrated

Sources & evidence

ORD record
ord-be615116b6e4465782f76a455804ff84
Source dataset
uspto-grants-2014_06
Patent number
US08754226B2

Reaction notes

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