Fluorene → HCID 178506660, compound

HRID 1756236Notes

Reaction equation

HRID 1756236 reaction equation
[CH:1]1[C:13]2[CH2:12][C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1.C[Li:15]>O1CCCC1>[C:1]1([Li:15])[C:13]2[CH2:12][C:11]3[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=3)[C:5]=2[CH:4]=[CH:3][CH:2]=1

Participants

4

Reactant 2

HCID 6853FluoreneHCID 178418348HCID 178418348, compound

Product 1

HCID 178506660HCID 178506660, compound

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent2×

Procedure

In a 300-cm3 four-necked flask in which the atmosphere was replaced with nitrogen, 7.4 g of fluorene were dissolved in 100 cm3 of tetrahydrofuran, followed by treating the solution with methyllithium, thereby obtaining a tetrahydrofuran solution of fluorenyllithium. Next, 50 cm3 of a tetrahydrofuran solution containing 5.2 g of previously synthesized 3,7-biscyclopentadienylidenebicyclo[3,3,0]octane were added dropwise to the tetrahydrofuran solution at -10° C. over 30 minutes. After completion of the addition, the reaction temperature was elevated up to room temperature, followed by stirring for 15 hours. Then, 100 cm3 of a 3.6% hydrochloric acid solution were poured thereinto to bring the reaction to an end. The resultant solid was collected by filtration, washed with ether, and then dried to obtain 7.6 g of white powdery 3,7-dicyclopentadienyl-3,7-difluorenylbicyclo[3,3,0]octane.

Sources & evidence

ORD record
ord-1868acfc430a4615b5a68d6cdcad6450
Source dataset
uspto-grants-1995_08
Patent number
US05439994

Reaction notes

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