Potassium Carbonate → HCID 21186596, compound

HRID 1384326Notes

Reaction equation

HRID 1384326 reaction equation
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([S:8][CH:9]2[CH2:15][CH:14]3[N:16](C)[CH:11]([CH2:12][CH2:13]3)[CH2:10]2)=[CH:4][CH:3]=1.Cl[C:19]([O:21][CH2:22][C:23]([Cl:26])([Cl:25])[Cl:24])=[O:20].C(=O)([O-])[O-].[K+].[K+]>C1C=CC=CC=1>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([S:8][CH:9]2[CH2:15][CH:14]3[N:16]([C:19]([O:21][CH2:22][C:23]([Cl:26])([Cl:25])[Cl:24])=[O:20])[CH:11]([CH2:12][CH2:13]3)[CH2:10]2)=[CH:6][CH:7]=1

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 870632,2,2-Trichloroethyl chloroformateHCID 21186643HCID 21186643, compound

Product 1

HCID 21186596HCID 21186596, compound

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

A mixture of 3-(4-chlorophenylsulfanyl)-8-methyl-8-azabicyclo-(3.2.1)-octane (8.06 g, 30.12 mmol), 2,2,2-trichloroethyl chloroformate (4.56 mL, 33.13 mmol), and potassium carbonate (4.58 g, 33.13 mmol) in benzene (150 mL) was refluxed overnight. The solvent was removed at reduced pressure and the residue was taken up in ethyl acetate. The organic phase was washed with aqueous bicarbonate and brine, dried over calcium sulfate and concentrated. The residue was flash chromatographed on silica gel (3×4 inches) with elution proceeding as follows: hexane (350 mL), nil; 10% ethyl acetate/hexane (500 mL), discarded forerun; 10% ethyl acetate/hexane (500 mL), 20% ethyl acetate/hexane (500 mL), and 30% ethyl acetate/hexane (250 mL), 9.26 g (72%) of 3-(4-chlorophenylsulfanyl)-(2,2,2-trichloroethoxycarbonyl)-8-azabicyclo-(3.2.1)-octane as a yellow solid which had: mp 70-71.5° C.; NMR δ7.33 (long range coupled d, J=8.5 Hz, 2 H), 7.26 (long range coupled δ, J=8.5 Hz, 2 H), 4.73 (ABq, Δv1-3=58 Hz, J=12 Hz, 2 H), 4.43-4.30 (m, 2 H), 3.40 (septet, J=6 Hz, 1 H), 2.10-1.56 (m, 8 H).

Workup

  1. temperaturewas refluxed overnight
  2. customThe solvent was removed at reduced pressure
  3. washThe organic phase was washed with aqueous bicarbonate and brine
  4. dry with materialdried over calcium sulfate
  5. concentrationconcentrated
  6. customchromatographed on silica gel (3×4 inches) with elution proceeding

Sources & evidence

ORD record
ord-1a42b6c8cc8d42e39eccbaa4c70f4d31
Source dataset
uspto-grants-2001_07
Patent number
US06258827B1

Reaction notes

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