Water → HCID 19777235, compound

HRID 373923Notes

Reaction equation

HRID 373923 reaction equation
C([N:8]1[CH2:13][CH2:12][O:11][CH:10]([CH2:14][OH:15])[CH2:9]1)C1C=CC=CC=1.C(N(CC)CC)C.[C:23]([Cl:31])(=[O:30])[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1.O>C(Cl)(Cl)Cl>[ClH:31].[C:23]([O:15][CH2:14][CH:10]1[O:11][CH2:12][CH2:13][NH:8][CH2:9]1)(=[O:30])[C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1

Participants

6

Procedure

4-Benzyl-2-hydroxymethylmorpholine (prepared by the method disclosed in Synthetic Communication, Vol. 10, pages 59-73, 1980) (200 g) and triethylamine (122 g) are dissolved in chloroform (1.5 liter), and thereto is added dropwise benzoyl chloride (135 g) with stirring under ice cooling. The mixture is stirred at room temperature for 16 hours and thereafter to the mixture is added water. The chloroform layer is separated, washed with saturated aqueous sodium hydrogen carbonate solution and saturated aqueous saline solution in this order, dried over anhydrous magnesium sulfate and distilled under reduced pressure to remove the solvent. The residue is dissolved in ethyl acetate (150 ml) and thereto is added 4N hydrogen chloride/ethyl acetate (250 ml) with stirring under ice cooling, and the precipitated crystals are separated by filtration, washed with ethyl acetate and acetone in this order to give the title compound (240 g) as colorless crystals.

Workup

  1. stirringThe mixture is stirred at room temperature for 16 hours
  2. customThe chloroform layer is separated
  3. washwashed with saturated aqueous sodium hydrogen carbonate solution and saturated aqueous saline solution in this order
  4. dry with materialdried over anhydrous magnesium sulfate
  5. distillationdistilled under reduced pressure
  6. customto remove the solvent
  7. dissolutionThe residue is dissolved in ethyl acetate (150 ml)
  8. additionis added 4N hydrogen chloride/ethyl acetate (250 ml)
  9. stirringwith stirring under ice cooling
  10. customthe precipitated crystals are separated by filtration
  11. washwashed with ethyl acetate and acetone in this order

Sources & evidence

ORD record
ord-7de5a21e7f7049ddbe3b4cb3f05ab31f
Source dataset
uspto-grants-1992_11
Patent number
US05166203

Reaction notes

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