4-(4-Bromophenyl)-4-fluoro-1-methylpiperidine → 4-Fluoro-1-methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidine

HRID 2383596Notes

Reaction equation

HRID 2383596 reaction equation
C(OC1CCN([C:11]2[CH:16]=[CH:15][C:14]([B:17]3[O:21][C:20]([CH3:23])([CH3:22])[C:19]([CH3:25])([CH3:24])[O:18]3)=[CH:13][CH:12]=2)CC1)(=O)C.BrC1C=CC([C:33]2([F:40])[CH2:38][CH2:37][N:36]([CH3:39])[CH2:35][CH2:34]2)=CC=1>CCOC(C)=O.O>[F:40][C:33]1([C:11]2[CH:12]=[CH:13][C:14]([B:17]3[O:18][C:19]([CH3:24])([CH3:25])[C:20]([CH3:22])([CH3:23])[O:21]3)=[CH:15][CH:16]=2)[CH2:38][CH2:37][N:36]([CH3:39])[CH2:35][CH2:34]1

Participants

5

Reactant 2

HCID 582665264-(4-Bromophenyl)-4-fluoro-1-methylpiperidineHCID 667303481-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidin-4-yl acetate

Product 1

HCID 584862834-Fluoro-1-methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidine

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Procedure

The title compound was synthesized according to the method described for the synthesis of 1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperidin-4-yl acetate, except substituting 4-(4-bromophenyl)-4-fluoro-1-methylpiperidine (133 mg, 0.49 mmol). The reaction was then allowed to cool to room temperature and was diluted with EtOAc and water was added. The resulting mixture was extracted with EtOAc and the combined organic extracts were washed with brine, dried over MgSO4 and concentrated to give the title compound as a brown solid (281 mg, used without further purification). 1H NMR (400 MHz, MeOD) δ 7.76 (d, J=7.7 Hz, 2H), 7.41 (d, J=7.8 Hz, 2H), 2.94-2.91 (m, 2H), 2.59 (t, J=12.0 Hz, 2H), 2.45 (s, 3H), 2.30-2.22 (m, 1H), 2.20-2.12 (m, 1H), 2.01-1.95 (m, 2H); 19F NMR (400 MHz, MeOD) δ −162.38; MS ESI 320.1 [M+H]+, calcd for [C18H27BFNO2+H]+ 320.21.

Workup

  1. customThe title compound was synthesized
  2. additionwas added
  3. extractionThe resulting mixture was extracted with EtOAc
  4. washthe combined organic extracts were washed with brine
  5. dry with materialdried over MgSO4
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-d83ca29806b04bfb8a3c6d1b2e0922b2
Source dataset
uspto-grants-2012_09
Patent number
US08263596B2

Reaction notes

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