Water → 2-(3-Hydroxypropyl)-2-phenyl-1,3-dioxolane

HRID 1070078Notes

Reaction equation

HRID 1070078 reaction equation
C[O:2][C:3]([CH2:5][CH2:6][C:7]1([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[O:11][CH2:10][CH2:9][O:8]1)=O.[H-].[Al+3].[Li+].[H-].[H-].[H-].O.C(OCC)(=O)C.CCCCCC>C(OCC)C>[OH:2][CH2:3][CH2:5][CH2:6][C:7]1([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[O:8][CH2:9][CH2:10][O:11]1

Participants

6

Reactant 4

HCID 962WaterHCID 100371022-[2-(Methoxycarbonyl)ethyl]-2-phenyl-1,3-dioxolaneHCID 21226206Ethyl acetate hexaneHCID 21226445Aluminium lithium hydride

Product 1

HCID 223445572-(3-Hydroxypropyl)-2-phenyl-1,3-dioxolaneYield 87%

Reagents, catalysts & solvents 1

HCID 3283Diethyl EtherSolvent2×

Procedure

A solution of 2-[2-(methoxycarbonyl)ethyl]-2-phenyl-1,3-dioxolane (5.00 g) in diethyl ether (15 ml) was added dropwise to a mixture of lithium aluminium hydride (949 mg) and diethyl ether (30 ml) at 0° C. After stirring for 30 minutes, water was added to the reaction mixture carefully and the precipitates were removed by filtration. The filtrate was extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was subjected to silica gel chromatography to obtain 2-(3-hydroxypropyl)-2-phenyl-1,3-dioxolane (3.81 g, yield 87%) as a colorless oil from an ethyl acetate-hexane (2:3, v/v)-eluted fraction.

Workup

  1. customthe precipitates were removed by filtration
  2. extractionThe filtrate was extracted with ethyl acetate
  3. washThe ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride
  4. dry with materialdried (MgSO4)
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-883c6a6022c243278f7b4e978027e54c
Source dataset
uspto-grants-2001_06
Patent number
US06251926B1

Reaction notes

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