Water → Dibenzyl ether

HRID 439901

Reaktionsgleichung

Reaktionsgleichung von HRID 439901
C([O:8][CH2:9][C@@H:10]1[C@@H:13]([CH2:14][O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[CH2:12][C:11]1=[O:23])C1C=CC=CC=1.P(O)(O)O.O.[CH:29](O)(C)C>[Ir](Cl)(Cl)(Cl)Cl>[OH:23][CH:11]1[CH2:12][CH:13]([CH2:14][OH:15])[CH:10]1[CH2:9][OH:8].[CH2:16]([O:15][CH2:14][C:13]1[CH:10]=[CH:9][CH:29]=[CH:11][CH:12]=1)[C:17]1[CH:18]=[CH:19][CH:20]=[CH:21][CH:22]=1

Komponenten

7

Edukt 4

HCID 962WaterHCID 3776IsopropanolHCID 107909Phosphorous acidHCID 14863583(2S-trans)-2,3-bis[(benzyloxy)methyl]cyclobutanone

Produkt 2

HCID 7657Dibenzyl etherHCID 540835352,3-Bis(hydroxymethyl)cyclobutanol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 24815Iridium tetrachlorideKatalysator

Versuchsvorschrift

A mixture of (2S-trans) -2,3-bis [(benzyloxy)-methyl]cyclobutanone (0.25 g., 0.806 mmole), iridium tetrachloride (0. 016 g., 0. 0483 mmole), phosphorous acid (0.397 g., 4.84 mmole) and water (0.3 ml.) in isopropanol (3 ml.) was refluxed overnight. The solvent was evaporated on a rotary evaporator. The residue was taken up in ethyl acetate and washed successively with 10% hydrochloric acid, brine, and 5% sodium bicarbonate. The organic layer was dried (magnesium sulfate) and the solvent was evaporated to give [1α, 2β, 3β)]-3-hydroxy-1,2-cyclobutane-dimethanol, dibenzyl ether; TLC (40% ethyl acetate/hexane) Rf = 0.51.

Aufarbeitung

  1. temperaturewas refluxed overnight
  2. customThe solvent was evaporated on a rotary evaporator
  3. washwashed successively with 10% hydrochloric acid, brine, and 5% sodium bicarbonate
  4. dry with materialThe organic layer was dried (magnesium sulfate)
  5. customthe solvent was evaporated

Quellen und Nachweise

ORD-Eintrag
ord-2198379b9c094fa9b4d9279dd5c0e475
Quelldatensatz
uspto-grants-1996_05
Patentnummer
US05516903

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