Reaction equation
C1CCN2C(=NCCC2)CC1.[C:12]([Si:16]([CH3:26])([CH3:25])[O:17][C:18]1[CH:19]=[C:20]([SH:24])[CH:21]=[CH:22][CH:23]=1)([CH3:15])([CH3:14])[CH3:13].CCOCC.OS([O-])(=O)=O.[K+].Br[CH2:39][Cl:40]>>[C:12]([Si:16]([O:17][C:18]1[CH:23]=[CH:22][CH:21]=[C:20]([S:24][CH2:39][Cl:40])[CH:19]=1)([CH3:26])[CH3:25])([CH3:15])([CH3:14])[CH3:13]Participants
6
Procedure
DBU (914 mg, 6.0 mmol) was added to a solution of 3-(tert-Butyl-dimethyl-silanyloxy)-benzenethiol (1.00 g, 4.16 mmol) in bromo-chloro methane (5 ml) at room temperature. Stirring was continued for 2 hours and Et2O (50 ml) and 2M KHSO4 (30 ml) were added. The organic layer was separated, washed with 2M KHSO4 (30 ml) and brine (30 ml), dried (Na2SO4) and concentrated under reduced pressure. The resulting oil was analysed by 1H-NMR spectroscopy and was used without further purification. Yield: 1.01 g (84%).
Workup
- customThe organic layer was separated
- washwashed with 2M KHSO4 (30 ml) and brine (30 ml)
- dry with materialdried (Na2SO4)
- concentrationconcentrated under reduced pressure
- customwas used without further purification
Sources & evidence
- ORD record
- ord-1507da1f180a4e8ea82054e9c26f141d
- Source dataset
- uspto-grants-2012_04
- Patent number
- US08148415B2
Linked notes
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