반응 #411013

반응 방정식

1-bromooctane

sodium cyclopentadienide

water

diethyl ether

→

n-octylcyclopentadiene

수율 79.0%

용매

tetrahydrofuran

THF

반응 조건

후처리

1. 1
   workup.ADDITIONwas added
2. 2
   기타The diethyl ether layer was separated
3. 3
   건조dried over anhydrous magnesium sulfate
4. 4
   기타After removing magnesium sulfate
5. 5
   workup.DISTILLATIONthe organic solvent was distilled off under a reduced pressure

실험 절차

Under a high purity nitrogen atmosphere, 5.8 ml(30mmol) of 1-bromooctane was introduced into a Schlenck flask and 50 ml of tetrahydrofuran (THF) was added thereto. To the resulting mixture, 18 ml of 2N sodium cyclopentadienide in THF was added at 0° C. The resultant was stirred for 5 hours at room temperature, 100 ml of water and 100 ml of diethyl ether were added thereto, followed by agitation. The diethyl ether layer was separated and dried over anhydrous magnesium sulfate. After removing magnesium sulfate, the organic solvent was distilled off under a reduced pressure and the residue was subjected to silica gel column chromatography (eluent: hexane) to obtain 4.21 g of n-octylcyclopentadiene (yield: 79%).

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