9-chloro-9H-fluorene

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 9-chlorofluorene (8.4 g), triethylamine (0.85 mL) and piperazine (27 g) in THF (200 mL) was refluxed under argon for 6 hours. It was then filtered and the solvent was removed under vacuum. The crude product was washed with water, chromatographed on silica gel and eluted with 5% MeOH saturated with NH3 in CH2Cl2 to afford the title compound (8.5 g). It was then filtered the solvent was removed under vacuum The crude product was washed with water chromatographed on silica gel eluted with 5% MeOH saturated with NH3 in CH2Cl2

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a cold (0° C.) suspension of 9-hydroxyfluorene (49 g) in benzene (650 mL) was added thionylchloride (70 mL). This solution was allowed to stir while warming up to room temperature overnight. The benzene was distilled off and the product was recrystallized from isopropylether to give 41 g of the title compound as a white solid: m.p. 87°-89° C. The benzene was distilled off the product was recrystallized from isopropylether

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 9-chlorofluorene (8.4 g), triethylamine (0.85 mL) and piperazine (27 g) in THF (200 mL) was refluxed under argon for 6 hours. It was then filtered and the solvent was removed under vacuum. The crude product was washed with water, chromatographed on silica gel and eluted with 5% MeOH saturated with NH3 in CH2Cl2 to afford the title compound (8.5 g). It was then filtered the solvent was removed under vacuum The crude product was washed with water chromatographed on silica gel eluted with 5% MeOH saturated with NH3 in CH2Cl2

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a cold (0° C.) suspension of 9-hydroxyfluorene (49 g) in benzene (650 mL) was added thionylchloride (70 mL). This solution was allowed to stir while warming up to room temperature overnight. The benzene was distilled off and the product was recrystallized from isopropylether to give 41 g of the title compound as a white solid: m.p. 87°-89° C. The benzene was distilled off the product was recrystallized from isopropylether

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 9-chlorofluorene (8.4 g), triethylamine (0.85 mL) and piperazine (27 g) in THF (200 mL) was refluxed under argon for 6 hours. It was then filtered and the solvent was removed under vacuum. The crude product was washed with water, chromatographed on silica gel and eluted with 5% MeOH saturated with NH3 in CH2Cl2 to afford the title compound (8.5 g). It was then filtered the solvent was removed under vacuum The crude product was washed with water chromatographed on silica gel eluted with 5% MeOH saturated with NH3 in CH2Cl2

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a cold (0° C.) suspension of 9-hydroxyfluorene (49 g) in benzene (650 mL) was added thionylchloride (70 mL). This solution was allowed to stir while warming up to room temperature overnight. The benzene was distilled off and the product was recrystallized from isopropylether to give 41 g of the title compound as a white solid: m.p. 87°-89° C. The benzene was distilled off the product was recrystallized from isopropylether