Chlorotrimethylsilane → [(1-Ethyl-1-propen-1-yl)oxy]trimethylsilane
Reaction equation
[CH3:1][Si:2]([CH3:5])([CH3:4])Cl.[CH2:6]([C:8]([CH2:10][CH3:11])=[O:9])[CH3:7]>>[CH3:1][Si:2]([CH3:5])([CH3:4])[O:9][C:8]([CH2:10][CH3:11])=[CH:6][CH3:7]Participants
3
Procedure
From reaction between diethylketone and trimethylchiorosilane to form 3-trimethylsilyloxy-2-pentene (1.2.4.17). This product was reacted with 1-fluoropyridinium triflate (1.2.4.5) to obtain 2-fluoro-3-pentanone (1.2.4.9). After bromination with pyridinium bromide followed by reduction using diborane 2-fluoro-4-bromopentane-3-ol (1.2.4.18) was obtained. Reaction of this product with sodium methylate yielded the title compound (1.2.4.16). This compound was made also by reacting 2-(1-bromoethyl)-3-methyl oxirane (1.2.4.13) with HF/Py (70%) followed by treatment of the resulting 2-bromo-4-fluoropentan-3-ol (1.2.4.18) with K2CO3 /MeOH.
Sources & evidence
- ORD record
- ord-6a5dfa8be4dd42a8acf92a036054b2f3
- Source dataset
- uspto-grants-2000_12
- Patent number
- US06165996
Reaction notes
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