(R)-N-((S)-1-(2-fluoro-4-(prop-1-en-2-yl)phenyl)ethyl)-2-methylpropane-2-sulfinamide → HCID 86730186, compound

HRID 1850156Notes

Reaction equation

HRID 1850156 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([C:8]([CH3:10])=[CH2:9])[CH:5]=[CH:4][C:3]=1[C@@H:11]([NH:13][S@@:14]([C:16]([CH3:19])([CH3:18])[CH3:17])=[O:15])[CH3:12].[H][H]>[Pd].CO>[F:1][C:2]1[CH:7]=[C:6]([CH:8]([CH3:9])[CH3:10])[CH:5]=[CH:4][C:3]=1[C@@H:11]([NH:13][S@@:14]([C:16]([CH3:19])([CH3:18])[CH3:17])=[O:15])[CH3:12]

Participants

5

Reactant 2

HCID 86730187(R)-N-((S)-1-(2-fluoro-4-(prop-1-en-2-yl)phenyl)ethyl)-2-methylpropane-2-sulfinamideHCID 178418361HCID 178418361, compound2×

Product 1

HCID 86730186HCID 86730186, compoundYield 73%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalyst2×HCID 887MethanolSolvent3×

Procedure

To a round bottom flask containing (R)—N—((S)-1-(2-fluoro-4-(prop-1-en-2-yl)phenyl)ethyl)-2-methylpropane-2-sulfinamide (204 mg, 0.72 mmol) and a stir bar was added MeOH (7.2 mL). To this solution was added palladium on carbon (77 mg, 10%, 0.07 mmol) in MeOH (1 mL). A hydrogen atmosphere was inserted and the resulting reaction mixture stirred at room temperature for 18 hours, at which time more palladium on carbon was added (300 mg) in MeOH (5 mL). A hydrogen atmosphere was inserted again and the reaction mixture allowed to stir an additional 18 hours at room temperature. The reaction mixture was filtered through a syringe filter and concentrated to afford a light brown viscous oil of (R)—N—((S)-1-(2-fluoro-4-isopropylphenyl)ethyl)-2-methylpropane-2-sulfinamide (149 mg, 0.52 mmol, 73% yield) which crystallizes upon standing. 1H NMR (400 MHz, CDCl3) δ 1.20 (s, 9H) 1.24 (d, J=5.87 Hz, 6H) 1.58 (d, J=6.70 Hz, 3H) 2.89 (dt, J=13.79, 6.90 Hz, 1H) 3.35 (d, J=5.04 Hz, 1H) 4.76-4.85 (m, 1H) 6.90 (dd, J=12.03, 1.52 Hz, 1H) 6.98 (dd, J=7.90, 1.54 Hz, 1H) 7.24 (t, J=7.97 Hz, 1H). LCMS m/z 286.3 (M+H)+, Rt 1.01 min.

Workup

  1. customthe resulting reaction mixture
  2. filtrationThe reaction mixture was filtered through a syringe
  3. filtrationfilter
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-c5156477fa394dd2a9d64078229feec5
Source dataset
uspto-grants-2015_02
Patent number
US08957068B2

Reaction notes

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