Potassium Carbonate → Tert-butyl 4-(4-oxo-8-(4-oxo-4-phenylbutyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)benzoate

HRID 1751131Notes

Reaction equation

HRID 1751131 reaction equation
[O:1]=[C:2]1[C:6]2([CH2:11][CH2:10][NH:9][CH2:8][CH2:7]2)[N:5]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[CH2:4][N:3]1[C:18]1[CH:30]=[CH:29][C:21]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])=[CH:20][CH:19]=1.I[CH2:32][CH2:33][CH2:34][C:35]([C:37]1[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=1)=[O:36].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.C(OCC)(=O)C>[O:1]=[C:2]1[C:6]2([CH2:11][CH2:10][N:9]([CH2:32][CH2:33][CH2:34][C:35](=[O:36])[C:37]3[CH:42]=[CH:41][CH:40]=[CH:39][CH:38]=3)[CH2:8][CH2:7]2)[N:5]([C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)[CH2:4][N:3]1[C:18]1[CH:19]=[CH:20][C:21]([C:22]([O:24][C:25]([CH3:27])([CH3:26])[CH3:28])=[O:23])=[CH:29][CH:30]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 110869514-Iodo-1-phenylbutan-1-oneHCID 58046644Tert-butyl 4-(4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)benzoate

Product 1

HCID 58046650Tert-butyl 4-(4-oxo-8-(4-oxo-4-phenylbutyl)-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)benzoateYield 80.6%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Procedure

tert-Butyl 4-(4-oxo-1-phenyl-1,3,8-triazaspiro[4.5]decan-3-yl)benzoate (0.274 g, 0.672 mmol), 4-iodobutyrophenone (0.18 g, 0.672 mmol), and potassium carbonate (0.14 g, 1.01 mmol) in N,N-dimethylformamide (5 mL) were heated at 65° C. for 3 hours. The reaction was diluted with ethyl acetate, washed with water and brine, dried (MgSO4), and evaporated. The residue was purified by PTLC (5% methanol/dichloromethane) to give product as an oil (0.30 g, 80%); MS for C34H39N3O4 m/z 554 (M+H)+.

Workup

  1. washwashed with water and brine
  2. dry with materialdried (MgSO4)
  3. customevaporated
  4. customThe residue was purified by PTLC (5% methanol/dichloromethane)

Sources & evidence

ORD record
ord-311d46831a964036b57f0a9dda559b06
Source dataset
uspto-grants-2015_10
Patent number
US09156840B2

Reaction notes

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