Acetic Acid → N-(3-{1-[4-(4-chlorophenoxy)benzyl]-4-piperidinyl}phenyl)-2-methylpropanamide

HRID 2087229Notes

Reaction equation

HRID 2087229 reaction equation
[Cl:1][C:2]1[CH:16]=[CH:15][C:5]([O:6][C:7]2[CH:14]=[CH:13][C:10]([CH:11]=O)=[CH:9][CH:8]=2)=[CH:4][CH:3]=1.[CH3:17][CH:18]([CH3:34])[C:19]([NH:21][C:22]1[CH:27]=[CH:26][CH:25]=[C:24]([CH:28]2[CH2:33][CH2:32][NH:31][CH2:30][CH2:29]2)[CH:23]=1)=[O:20].C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+].CC(O)=O.C([O-])(O)=O.[Na+]>ClCCCl>[Cl:1][C:2]1[CH:16]=[CH:15][C:5]([O:6][C:7]2[CH:14]=[CH:13][C:10]([CH2:11][N:31]3[CH2:32][CH2:33][CH:28]([C:24]4[CH:23]=[C:22]([NH:21][C:19](=[O:20])[CH:18]([CH3:17])[CH3:34])[CH:27]=[CH:26][CH:25]=4)[CH2:29][CH2:30]3)=[CH:9][CH:8]=2)=[CH:4][CH:3]=1

Participants

7

Reactant 5

HCID 176Acetic AcidHCID 516892Sodium BicarbonateHCID 38517644-(4-Chlorophenoxy)benzaldehydeHCID 5049666Sodium triacetoxyborohydrideHCID 167572552-methyl-N-[3-(4-piperidyl)phenyl]propanamide

Product 1

HCID 16756642N-(3-{1-[4-(4-chlorophenoxy)benzyl]-4-piperidinyl}phenyl)-2-methylpropanamideYield 23%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

4-(4-chlorophenoxy)benzaldehyde (0.119 g, 0.510 mmol) and 2-methyl-N-[3-(4-piperidinyl)phenyl]propanamide (0.126 g, 0.510 mmol) were mixed in 1,2-dichloroethane (5 mL) and then treated with sodium triacetoxyborohydride (0.424 g, 2.00 mmol) and HOAc (0.03 mL, 0.5 mmol). The mixture was stirred overnight at room temperature. The reaction mixture was neutralized with saturated NaHCO3 aqueous solution and the aqueous layer was extracted with CH2Cl2 (3×10 mL). The combined organic layers were washed with brine, dried over MgSO4, concentrated in vacuo, and purified by preparative TLC using 5% of NH3 (2.0 M in methanol) in CH2Cl2 to give the desired product (53 mg, 23%). 1H NMR (400 MHz, CDCl3) δ 7.50 (s, 1H), 7.34-7.19 (m, 7H), 6.98-6.87 (m, 5H), 3.50 (s, 2H), 2.98 (d, 2H, J=11.8 Hz), 2.58-2.44 (m, 2H), 2.10-1.98 (m, 2H), 1.83-1.76 (m, 4H), 1.24 (d, 6H, J=6.8 Hz); ESMS m/e: 463.2 (M+H)+.

Workup

  1. extractionthe aqueous layer was extracted with CH2Cl2 (3×10 mL)
  2. washThe combined organic layers were washed with brine
  3. dry with materialdried over MgSO4
  4. concentrationconcentrated in vacuo
  5. custompurified by preparative TLC

Sources & evidence

ORD record
ord-711f551d15bf41b3b31fd6a9f5a88d5e
Source dataset
uspto-grants-2004_04
Patent number
US06727264B1

Reaction notes

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