2-(Tert-butoxy)ethan-1-ol → 1-(3-Chlorophenyl)-2-(2-tertbutoxyethoxy)ethanol

HRID 2257535Notes

Reaction equation

CC(C)([O-])C.[K+].[C:7]([O:11][CH2:12][CH2:13][OH:14])([CH3:10])([CH3:9])[CH3:8].[Cl:15][C:16]1[CH:17]=[C:18]([CH:22]2[CH2:24][O:23]2)[CH:19]=[CH:20][CH:21]=1>C(OCC)(=O)C>[Cl:15][C:16]1[CH:17]=[C:18]([CH:22]([OH:23])[CH2:24][O:14][CH2:13][CH2:12][O:11][C:7]([CH3:10])([CH3:9])[CH3:8])[CH:19]=[CH:20][CH:21]=1

Participants

Conditions

Temperature: 80 °C

Procedure

5.1 g of potassium tert-butoxide was added to 105 ml of ethylene glycol mono-tert-butyl ether. The mixture was heated to 80° C. Thereto was dropwise added 35.0 g of 2-(3-chlorophenyl)oxirane over 1 hour. The mixture was stirred for 2 hours at the same temperature. The reaction mixture was added to a mixture of 100 ml of ice water and 100 ml of ethyl acetate. The organic layer was separated, washed with a saturated aqueous sodium chloride solution, and dried over anhydrous magnesium sulfate. The solvent was removed by distillation under reduced pressure. The residue thus obtained was subjected to further distillation under reduced pressure to obtain 37.7 g of colorless oily 1-(3-chlorophenyl)-2-(2-tert-butoxyethoxy)ethanol having a boiling point of 140°-146° C./0.9 mmHg.

Workup

customover 1 hour
customThe organic layer was separated
washwashed with a saturated aqueous sodium chloride solution
dry with materialdried over anhydrous magnesium sulfate
customThe solvent was removed by distillation under reduced pressure
customThe residue thus obtained
distillationwas subjected to further distillation under reduced pressure

Sources & evidence

ORD record: ord-e65925a6ae9d46bc830b7fc52b511d95
Source dataset: uspto-grants-1997_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US05658904

Reaction notes

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