Sodium hydride → (5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-(cyclobutylmethyl)piperidin-2-one

HRID 1048233Notes

Reaction equation

HRID 1048233 reaction equation
[CH2:1]([C@@H:4]1[CH2:9][C@H:8]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([Cl:16])[CH:11]=2)[C@@H:7]([C:17]2[CH:22]=[CH:21][C:20]([Cl:23])=[CH:19][CH:18]=2)[NH:6][C:5]1=[O:24])[CH:2]=[CH2:3].[H-].[Na+].Br[CH2:28][CH:29]1[CH2:32][CH2:31][CH2:30]1>CN(C=O)C>[CH2:1]([CH:4]1[CH2:9][C@H:8]([C:10]2[CH:15]=[CH:14][CH:13]=[C:12]([Cl:16])[CH:11]=2)[C@@H:7]([C:17]2[CH:22]=[CH:21][C:20]([Cl:23])=[CH:19][CH:18]=2)[N:6]([CH2:28][CH:29]2[CH2:32][CH2:31][CH2:30]2)[C:5]1=[O:24])[CH:2]=[CH2:3]

Participants

5

Reactant 3

HCID 24758Sodium hydrideHCID 2734658(Bromomethyl)cyclobutaneHCID 58573283(3R,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)piperidin-2-one

Product 1

HCID 68000567(5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)-1-(cyclobutylmethyl)piperidin-2-one

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of (3R,5R,6S)-3-allyl-5-(3-chlorophenyl)-6-(4-chlorophenyl)piperidin-2-one (Example 42, Step A) (70 mg, 0.19 mmol) in 430 μL of DMF was added sodium hydride (60% suspension in mineral oil, 20 mg, 0.51 mmol) at 0° C. The reaction mixture was stirred at 0° C. for 15 min and after treatment with (bromomethyl)cyclobutane (66 μL, 0.58 mmol) the reaction mixture was heated to 70° C. for 15 h. The reaction mixture was cooled to room temperature, quenched with sat. aqueous NaHCO3 and extracted (2×EtOAc). The combined organic layers were washed with sat. aq. NaCl and NaHCO3-solutions, dried over Na2SO4, filtered and the filtrate was concentrated under reduced pressure. Purification of the residue by silica gel prep plate (25% EtOAc/hexanes) provided the title compound as a colorless solid.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. customquenched with sat. aqueous NaHCO3
  3. extractionextracted (2×EtOAc)
  4. washThe combined organic layers were washed with sat. aq. NaCl and NaHCO3-solutions
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationthe filtrate was concentrated under reduced pressure
  8. customPurification of the residue by silica gel prep plate (25% EtOAc/hexanes)

Sources & evidence

ORD record
ord-581cdfa5db264c97b8219a4fd67af22e
Source dataset
uspto-grants-2013_10
Patent number
US08569341B2

Reaction notes

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