Acetone → 2,3-Dihydro-1H-indene-1,2-diol

HRID 1276031Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1276031
[CH2:1]1C2[C:4](=[CH:5][CH:6]=CC=2)[CH:3]=[CH:2]1.[CH3:10][C:11]([CH3:13])=[O:12].C[N+]1([O-])CC[O:18]CC1.S(S([O-])=O)([O-])(=O)=O.[Na+].[Na+]>O.C(Cl)(Cl)(Cl)Cl.[Os](=O)(=O)(=O)=O.C(O)(C)(C)C>[OH:12][CH:11]1[C:13]2[C:2](=[CH:3][CH:4]=[CH:5][CH:6]=2)[CH2:1][CH:10]1[OH:18]

Komponenten

9

Edukt 4

HCID 180AcetoneHCID 7219IndeneHCID 82029Methyl morpholine oxideHCID 656671Sodium Pyrosulfite

Produkt 1

HCID 5211972,3-Dihydro-1H-indene-1,2-diolAusbeute 97 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 30318Osmium TetroxideKatalysatorHCID 962WaterLösungsmittel2×HCID 5943Carbon TetrachlorideLösungsmittelHCID 6386tert-ButanolLösungsmittel

Versuchsvorschrift

To a stirred solution of indene (0.5 g, 4.3 m mol), in a mixture of water (2.5 cm3 acetone (5 cm3) and tert-butanol (1.5 cm3), was added 4-methylmorpholine-N-oxide (0.6 g, 5.9 mmol) and a solution of osmium tetroxide in carbon tetrachloride (0.005 g/0.5 cm3). After stirring the reaction mixture for three days, at ambient temperature, a saturated aqueous solution of sodium metabisulphite (0.5 cm3) was added and the stirring was continued for another hour. The reaction mixture was diluted with water (50 cm3), extracted with ethyl acetate (2×50 cm3) and dried (Na2SO4). Distillation of the solvent, from the organic extract, under reduced pressure, gave crude racemic (1R:2S/1S:2R) 1,2-dihydroxy-1,2-dihydroindene as off-white fluffy crystals (0.63 g, 97%) m.pt. 98°-100° C.

Aufarbeitung

  1. waitthe stirring was continued for another hour
  2. extractionextracted with ethyl acetate (2×50 cm3)
  3. dry with materialdried (Na2SO4)
  4. distillationDistillation of the solvent

Quellen und Nachweise

ORD-Eintrag
ord-160223f060b543579cabd5571eadc4ed
Quelldatensatz
uspto-grants-2000_12
Patentnummer
US06165777

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