Imidazole → 4-Trimethylsiloxy-4-vinyl-1-iodo-trans-1-octene

Reaktionsgleichung

[OH:1][C:2]([CH:11]=[CH2:12])([CH2:7][CH2:8][CH2:9][CH3:10])[CH2:3]/[CH:4]=[CH:5]/[I:6].N1C=CN=C1.Cl[Si:19]([CH3:22])([CH3:21])[CH3:20]>CN(C)C=O>[CH3:20][Si:19]([CH3:22])([CH3:21])[O:1][C:2]([CH:11]=[CH2:12])([CH2:7][CH2:8][CH2:9][CH3:10])[CH2:3]/[CH:4]=[CH:5]/[I:6]

Komponenten

Versuchsvorschrift

To a stirred solution of 456 mg of 4-hydroxy-4-vinyl-1-iodo-trans-1-octene and 320 mg of imidazole in 1.0 m of dimethylformamide is added 0.23 ml of chlorotrimethylsilane during 3 minutes. The mixture is stirred at room temperature for 22 hours and partitioned with a mixture of cold hexane and water. The hexane layer is washed repeatedly with water and then brine, dried over magnesium sulfate, and concentrated to give an oil, pmr spectrum (CDCl3): 0.13 (s, trimethylsiloxy group) and 2.32 (d, =CHCH2).