Toluene → Ethyldimethyl(((1SR,4RS)-3-methylbicyclo[2.2.1]hept-2-en-2-yl)methyl)silane

HRID 1749118

Reaktionsgleichung

Reaktionsgleichung von HRID 1749118
C([Al]([CH2:6][CH3:7])CC)C.[CH3:8][SiH:9]([CH3:12])[CH2:10][CH3:11].[Cl-].[NH4+].[C:15]1([CH3:21])[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1>C/C(/[O-])=C/C(C)=O.C/C(/[O-])=C/C(C)=O.[Ni+2]>[CH2:10]([Si:9]([CH3:12])([CH3:8])[CH2:19][C:20]1[CH:7]2[CH2:6][CH:16]([C:15]=1[CH3:21])[CH2:17][CH2:18]2)[CH3:11]

Komponenten

6

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

Triethyl aluminium (1.0 M in hexanes, 4.2 mL, 4.2 mmol) was added slowly dropwise to a suspension of Ni(acac)2 (dried in vacuo 120° C. 3 hrs, 107 mg, 0.4 mmol, 5 mol %), santadiene (1.0 g, 8.3 mmol) in freshly degassed toluene (85 mL) cooled to 0° C. After 15 minutes, dimethyl ethyl silane (1.1 mL, 8.3 mmol) was added slowly dropwise and the solution was then allowed to slowly warm to ambient temperature and stirred for a further 2 hours. The reaction mixture was poured into saturated ammonium chloride solution and extracted with ether, then the combined organic phase was washed with brine and dried over Na2SO4, then filtered and the solvents removed in vacuo to yield the crude allyl silane 0.9 g, which was further purified by bulb to bulb distillation 30° C. at 0.08 mbar and gave the desired ally silane 0.65 g, 37%.

Aufarbeitung

  1. temperatureto slowly warm to ambient temperature
  2. extractionextracted with ether
  3. washthe combined organic phase was washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. customthe solvents removed in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-720e2de814034ac3aa3add3b95b456e6
Quelldatensatz
uspto-grants-2015_10
Patentnummer
US09156770B2

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