Triethylamine → (RS)-tert-Butyl-dimethyl-(4-oxiranylmethyl-phenoxy)-silane

HRID 1419930Notes

Reaction equation

HRID 1419930 reaction equation
[O:1]1[CH2:3][CH:2]1[CH2:4][C:5]1[CH:10]=[CH:9][C:8]([OH:11])=[CH:7][CH:6]=1.[Si:12](Cl)([C:15]([CH3:18])([CH3:17])[CH3:16])([CH3:14])[CH3:13].C(N(CC)CC)C>C(Cl)Cl>[C:15]([Si:12]([CH3:14])([CH3:13])[O:11][C:8]1[CH:9]=[CH:10][C:5]([CH2:4][CH:2]2[CH2:3][O:1]2)=[CH:6][CH:7]=1)([CH3:18])([CH3:17])[CH3:16]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 28928tert-Butyldimethylsilyl chlorideHCID 53757927(RS)-4-Oxiranylmethyl-phenol

Product 1

HCID 54376003(RS)-tert-Butyl-dimethyl-(4-oxiranylmethyl-phenoxy)-silaneYield 82%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

(RS)-4-Oxiranylmethyl-phenol (1 g, 6.66 mmol) was dissolved in CH2Cl2 (50 ml) and stirred at room temperature in the presence of tert-butyldimethylsilyl chloride (1.3 g, 8.66 mmol), 4-dimethyl-aminopyridine (0.018 g, 0.15 mmol) and triethylamine (1.2 ml, 8.66 mmol). After 22 hours at room temperature, the reaction mixture was washed with H2O (2×100 ml) and the resulting aqueous phases were extracted with CH2Cl2 (100 ml). The combined organic phases were dried over Na2SO4 and concentrated. The residue was chromatographed over silica gel (hexane-ethylacetate 9:1) to provide (RS)-tert-Butyl-dimethyl-(4-oxiranylmethyl-phenoxy)-silane (1.44 g, 82%) as yellow oil, MS: m/e=264 (M+).

Workup

  1. washthe reaction mixture was washed with H2O (2×100 ml)
  2. extractionthe resulting aqueous phases were extracted with CH2Cl2 (100 ml)
  3. dry with materialThe combined organic phases were dried over Na2SO4
  4. concentrationconcentrated
  5. customThe residue was chromatographed over silica gel (hexane-ethylacetate 9:1)

Sources & evidence

ORD record
ord-ba2cfacf52194902ac123bcf09f7faab
Source dataset
uspto-grants-1999_03
Patent number
US05889026

Reaction notes

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