(S)-1,1,1-Trifluoro-3-(7-nitro-1,2,4,5-tetrahydro-benzo[d]azepin-3-yl)-propan-2-ol → (S)-3-(7-amino-1,2,4,5-tetrahydro-benzo[d]azepin-3-yl)-1,1,1-trifluoro-propan-2-ol

HRID 1687135Notes

Reaction equation

HRID 1687135 reaction equation
[F:1][C:2]([F:21])([F:20])[C@@H:3]([OH:19])[CH2:4][N:5]1[CH2:11][CH2:10][C:9]2[CH:12]=[C:13]([N+:16]([O-])=O)[CH:14]=[CH:15][C:8]=2[CH2:7][CH2:6]1>CO.[Pd]>[NH2:16][C:13]1[CH:14]=[CH:15][C:8]2[CH2:7][CH2:6][N:5]([CH2:4][C@H:3]([OH:19])[C:2]([F:21])([F:1])[F:20])[CH2:11][CH2:10][C:9]=2[CH:12]=1

Participants

4

Reactant 1

HCID 67263600(S)-1,1,1-Trifluoro-3-(7-nitro-1,2,4,5-tetrahydro-benzo[d]azepin-3-yl)-propan-2-ol

Product 1

HCID 67264395(S)-3-(7-amino-1,2,4,5-tetrahydro-benzo[d]azepin-3-yl)-1,1,1-trifluoro-propan-2-ol

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 887MethanolSolvent

Procedure

(S)-1,1,1-Trifluoro-3-(7-nitro-1,2,4,5-tetrahydro-benzo[d]azepin-3-yl)-propan-2-ol (582 mg, 1.91 mmol, 1.0 eq) was placed in methanol (20 mL) and 10% palladium on carbon (58 mg) was added. The reaction was hydrogenated at 25 psi for 30 minutes. The mixture was then filtered through celite and concentrated under reduced pressure to obtain (S)-3-(7-amino-1,2,4,5-tetrahydro-benzo[d]azepin-3-yl)-1,1,1-trifluoro-propan-2-ol as a green amorphous solid (525 mg, 100%). 1H-NMR (CDCl3, 400 MHz) δ 6.90 (d, 1H, J=8.2 Hz), 6.53-6.39 (m, 2H), 4.49-4.35 (m, 1H), 4.12-3.93 (m, 1H), 3.63-3.47 (m, 2H), 2.96-2.75 (m, 6H), 2.75-2.60 (m, 4H).

Workup

  1. filtrationThe mixture was then filtered through celite and
  2. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-9fd80499be0a4d13921189c49419c4d3
Source dataset
uspto-grants-2012_04
Patent number
US08148391B2

Reaction notes

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