Piperidine → 1-(4-Iodobenzoyl)piperidine

HRID 1726881

Reaktionsgleichung

Reaktionsgleichung von HRID 1726881
[I:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=O)=[CH:4][CH:3]=1.C(N(C(C)C)CC)(C)C.CN(C(ON1N=[N:35][C:30]2C=[CH:32][CH:33]=[CH:34][C:29]1=2)=[N+](C)C)C.[B-](F)(F)(F)F.N1CCCCC1>C(Cl)Cl>[I:1][C:2]1[CH:3]=[CH:4][C:5]([C:6]([N:35]2[CH2:32][CH2:33][CH2:34][CH2:29][CH2:30]2)=[O:8])=[CH:9][CH:10]=1

Komponenten

6

Edukt 4

HCID 8082PiperidineHCID 120854-Iodobenzoic acidHCID 81531DiisopropylethylamineHCID 2733207O-(Benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate

Produkt 1

HCID 51492041-(4-Iodobenzoyl)piperidine

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a suspension of 4.0 g of 4-iodobenzoic acid (16.13 mmol) in 40 ml of CH2Cl2 there are added 3.65 ml of diisopropylethylamine (20.97 mmol) and then, after 10 minutes, 5.18 g of TBTU (16.13 mmol). After stirring for 10 minutes more, 1.60 ml of piperidine (16.13 mmol) are added and the reaction mixture is stirred overnight at ambient temperature. The reaction mixture is washed 3 times with water and then once with saturated NaCl. After drying (MgSO4) and evaporation under reduced pressure, the residue is chromatographed on silica (CH2Cl2/acetone 9/1) to yield the title product.

Aufarbeitung

  1. stirringthe reaction mixture is stirred overnight at ambient temperature
  2. washThe reaction mixture is washed 3 times with water
  3. customAfter drying
  4. custom(MgSO4) and evaporation under reduced pressure
  5. customthe residue is chromatographed on silica (CH2Cl2/acetone 9/1)

Quellen und Nachweise

ORD-Eintrag
ord-d608cb7ddaa847de967183dd61927261
Quelldatensatz
uspto-grants-2009_02
Patentnummer
US07494994B2

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