Piperidinium acetate → HCID 178456889, compound

HRID 1620644Notes

Reaction equation

HRID 1620644 reaction equation
[F:1][C:2]([F:23])([F:22])[C:3]1[CH:17]=[C:16]([C:18]([F:21])([F:20])[F:19])[CH:15]=[CH:14][C:4]=1[CH2:5][N:6]1[CH2:11][CH2:10][CH:9]([CH:12]=O)[CH2:8][CH2:7]1.[CH2:24]([NH:27][C:28]1[CH2:32][O:31][C:30](=[O:33])[N:29]=1)[C:25]#[CH:26].C([O-])(=O)C.[NH2+]1CCCCC1>CC(O)C>[F:23][C:2]([F:1])([F:22])[C:3]1[CH:17]=[C:16]([C:18]([F:21])([F:20])[F:19])[CH:15]=[CH:14][C:4]=1[CH2:5][N:6]1[CH2:11][CH2:10][CH:9](/[CH:12]=[C:32]2/[C:28]([NH:27][CH2:24][C:25]#[CH:26])=[N:29][C:30](=[O:33])[O:31]/2)[CH2:8][CH2:7]1

Participants

5

Reactant 3

HCID 3014295Piperidinium acetateHCID 866786631-[2,4-Bis(trifluoromethyl)benzyl]piperidine-4-carbaldehydeHCID 178456888HCID 178456888, compound

Product 1

HCID 178456889HCID 178456889, compoundYield 1%

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Conditions

Temperature
90 °C

Procedure

To a solution of 1-[2,4-bis(trifluoromethyl)benzyl]piperidine-4-carbaldehyde (339 mg) and 4-(prop-2-yn-1-ylamino)-1,3-oxazol-2(5H)-one (152 mg) in 2-propanol (3 mL) was added piperidinium acetate (160 mg) at room temperature. The reaction mixture was stirred at 90° C. for 2 hr. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane) and recrystallized from ethyl acetate/hexane to give the title compound (4.40 mg)

Workup

  1. concentrationThe reaction mixture was concentrated under reduced pressure
  2. customthe residue was purified by silica gel column chromatography (NH, ethyl acetate/hexane)
  3. customrecrystallized from ethyl acetate/hexane

Sources & evidence

ORD record
ord-8d2c85b61ff74bd290751e30d69cba9d
Source dataset
uspto-grants-2014_07
Patent number
US08772277B2

Reaction notes

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