Water → trans-(-)-4-(4-Fluorophenyl)-3-hydroxymethylpiperidine monohydrate

HRID 617440

Reaktionsgleichung

Reaktionsgleichung von HRID 617440
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]2[CH2:13][CH2:12][NH:11][CH2:10][C@H:9]2[CH2:14][OH:15])=[CH:4][CH:3]=1.O>C1(C)C=CC=CC=1>[OH2:15].[F:1][C:2]1[CH:7]=[CH:6][C:5]([C@@H:8]2[CH2:13][CH2:12][NH:11][CH2:10][C@H:9]2[CH2:14][OH:15])=[CH:4][CH:3]=1

Komponenten

4

Edukt 2

HCID 962WaterHCID 9855829(3S,4R)-4-(4-Fluorophenyl)-3-piperidinemethanol

Produkt 1

HCID 69039254trans-(-)-4-(4-Fluorophenyl)-3-hydroxymethylpiperidine monohydrateAusbeute 89,45 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140TolueneLösungsmittel

Versuchsvorschrift

A 200-ml four-necked glass flask equipped with a thermometer and a reflux condenser was charged with 63 ml of toluene and 10.54 g (50.37 mmol) of (-)-(3S,4R)-4-(4-fluorophenyl)-3-hydroxymethylpiperidine, and the mixture was warmed and dissolved. 1.13 g (62.71 mmol) of water was added to the above mixture at 50° C. to allow to crystallize. Thereafter, the mixture was kept for one hour at a temperature of from 20° to 30° C., and then the crystals were collected by filtration. The obtained crystals were thoroughly washed with 20 ml of toluene, to give white crystals of (-)-(3S,4R)-4-(4-fluorophenyl)-3-hydroxymethylpiperidine monohydrate. Thereafter, the crystals were dried under a reduced pressure at a temperature of 30° C. or lower, and weighed 10.24 g. The yield was 89.45% based on (-)-(3S,4R)-4-(4-fluorophenyl)-3-hydroxymethylpiperidine.

Aufarbeitung

  1. customA 200-ml four-necked glass flask equipped with a thermometer and a reflux condenser
  2. temperaturethe mixture was warmed
  3. dissolutiondissolved
  4. customto crystallize
  5. filtrationthe crystals were collected by filtration
  6. washThe obtained crystals were thoroughly washed with 20 ml of toluene

Quellen und Nachweise

ORD-Eintrag
ord-653cfc05fa4f4689ad6b4d9b9a492ded
Quelldatensatz
uspto-grants-1999_09
Patentnummer
US05948914

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