Imidazole → Tert-butyl-(cyclohept-4-enyloxy)-diphenyl-silane

HRID 2115624

Reaction equation

HRID 2115624 reaction equation
[CH:1]1([OH:8])[CH2:7][CH2:6][CH:5]=[CH:4][CH2:3][CH2:2]1.N1C=CN=C1.[C:14]([Si:18](Cl)([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1)([CH3:17])([CH3:16])[CH3:15]>CN(C)C=O>[C:14]([Si:18]([O:8][CH:1]1[CH2:7][CH2:6][CH:5]=[CH:4][CH2:3][CH2:2]1)([C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1)[C:19]1[CH:20]=[CH:21][CH:22]=[CH:23][CH:24]=1)([CH3:17])([CH3:15])[CH3:16]

Participants

5

Reactant 3

HCID 795ImidazoleHCID 94078tert-ButyldiphenylchlorosilaneHCID 556485Cyclohept-4-enol

Product 1

HCID 67512396Tert-butyl-(cyclohept-4-enyloxy)-diphenyl-silane

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A solution of the product of Example 8B (1.57 g, 14.05 mmoles), imidazole (1.43 g, 21.08 mmoles), and Tert-butyl-chlorodiphenylsilane (4.76 gm, 17.4 mmoles) in N,N-dimethylformamide (10 mL) was stirred for five hours at 23° C. The reaction was partitioned between ethyl acetate and water. The organic layer was washed with brine (25 mL), dried with MgSO4, filtered, and solvent evaporated in vacuo. The crude product was purified by flash column chromatography (hexanes:ethyl acetate 100:0 to 90:10) to provide the title compound as an oil.

Workup

  1. customThe reaction was partitioned between ethyl acetate and water
  2. washThe organic layer was washed with brine (25 mL)
  3. dry with materialdried with MgSO4
  4. filtrationfiltered
  5. customsolvent evaporated in vacuo
  6. customThe crude product was purified by flash column chromatography (hexanes:ethyl acetate 100:0 to 90:10)

Sources & evidence

ORD record
ord-75a02a70946c42bd9446f04f81d13c17
Source dataset
uspto-grants-2008_10
Patent number
US07435833B2

Linked notes

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