Piperidinium acetate → HCID 178472677, compound

HRID 1620627Notes

Reaction equation

HRID 1620627 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.[O:24]=[C:25]1[N:29]=[C:28]([NH:30][CH2:31][C:32]([O:34][CH2:35][CH3:36])=[O:33])[CH2:27][S:26]1.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:27]2/[C:28]([NH:30][CH2:31][C:32]([O:34][CH2:35][CH3:36])=[O:33])=[N:29][C:25](=[O:24])[S:26]/2)[CH2:8][CH2:7]1

Participants

5

Reactant 3

HCID 3014295Piperidinium acetateHCID 866786631-[2,4-Bis(trifluoromethyl)benzyl]piperidine-4-carbaldehydeHCID 178472676HCID 178472676, compound

Product 1

HCID 178472677HCID 178472677, compoundYield 84.9%

Reagents, catalysts & solvents 1

HCID 3776IsopropanolSolvent

Conditions

Temperature
70 °C

Procedure

To a solution of 1-[2,4-bis(trifluoromethyl)benzyl]piperidine-4-carbaldehyde (2.0 g) and ethyl N-(2-oxo-2,5-dihydro-1,3-thiazol-4-yl)glycinate (1.55 g) in 2-propanol (20 mL) was added piperidinium acetate (0.86 g). The reaction mixture was stirred at 70° C. for 2 hr and concentrated. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) and recrystallized from ethyl acetate/heptane to give the title compound (2.62 g).

Workup

  1. concentrationconcentrated
  2. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)
  3. customrecrystallized from ethyl acetate/heptane

Sources & evidence

ORD record
ord-d26f29c59079479e9913647d91a8958d
Source dataset
uspto-grants-2014_07
Patent number
US08772277B2

Reaction notes

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