(R)-(+)-4-tert. butoxy-3-methyl-1butanol p-toluenesulfonate → (R)-(+)-1-tert. Butoxy-2,6-dimethylheptane
Reaction equation
C1(C)C=CC(S(O[CH2:11][CH2:12][C@@H:13]([CH3:20])[CH2:14][O:15][C:16]([CH3:19])([CH3:18])[CH3:17])(=O)=O)=CC=1.[CH2:22]([Mg]Br)[CH:23]([CH3:25])[CH3:24]>>[C:16]([O:15][CH2:14][C@H:13]([CH3:20])[CH2:12][CH2:11][CH2:22][CH:23]([CH3:25])[CH3:24])([CH3:17])([CH3:18])[CH3:19]Participants
3
Procedure
Coupling of (R)-(+)-4-tert. butoxy-3-methyl-1-butanol p-toluenesulfonate with isobutylmagnesium bromide was carried out using the procedure of Example 47. (R)-(+)-1-tert. Butoxy-2,6-dimethylheptane was obtained in 76% yield as a colorless liquid.
Sources & evidence
- ORD record
- ord-15f2cc8ff1844ade861c4dc850713ad4
- Source dataset
- uspto-grants-1980_03
- Patent number
- US04191842
Reaction notes
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