2,3-dihydro-1H-inden-2-yl methanesulfonate

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:55.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of methanesulfonic acid indan-2-yl ester (18.65 g, 87.9 mmol) and tetraethylammonium cyanide (15.10 g) in acetonitrile (180 mL) was heated to 55° C. for 5 hours, cooled and concentrated. The residue was partitioned between ethyl acetate and water, and the organic phase separated. This was dried over MgSO4 and the filtered solution was concentrated and then separated by column chromatography (dichloromethane:ethyl acetate, 6:1-1:1) to give the product as a red solid (6.51 g, 52%). cooled concentrated The residue was partitioned between ethyl acetate and water the organic phase separated This was dried over MgSO4 the filtered solution was concentrated separated by column chromatography (dichloromethane:ethyl acetate, 6:1-1:1)

Conditions: temp:55.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of methanesulfonic acid indan-2-yl ester (18.65 g, 87.9 mmol) and tetraethylammonium cyanide (15.10 g) in acetonitrile (180 mL) was heated to 55° C. for 5 hours, cooled and concentrated. The residue was partitioned between ethyl acetate and water, and the organic phase separated. This was dried over MgSO4 and the filtered solution was concentrated and then separated by column chromatography (dichloromethane:ethyl acetate, 6:1-1:1) to give the product as a red solid (6.51 g, 52%). cooled concentrated The residue was partitioned between ethyl acetate and water the organic phase separated This was dried over MgSO4 the filtered solution was concentrated separated by column chromatography (dichloromethane:ethyl acetate, 6:1-1:1)

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

Procedure: 2-Indanol (20.00 g, 149.5 mmol) and diisopropylethylamine (21.2 g, 164 mmol) was stirred in dichloromethane (300 mL) at 0° C. Methanesulfonyl chloride (18.78 g, 164 mmol) and dimethylaminopyridine (1.80 g) were added simultaneously and stirring continued at room temperature for 18 h. Solution was evaporated, partitioned between ethyl acetate and water, and the organic phase separated. This was washed with NaHCO3 (sat) and with citric acid solution (5%) and dried over MgSO4. The filtered solution was concentrated and the resultant solid recrystallized from isopropanol-EtOH (3:1) to give off-white crystals (24.6 g, 78%). Solution was evaporated partitioned between ethyl acetate and water the organic phase separated This was washed with NaHCO3 (sat) and with citric acid solution (5%) dried over MgSO4 The filtered solution was concentrated the resultant solid recrystallized from isopropanol-EtOH (3:1)

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: To a suspension of 4-piperazin-1-yl-benzoic acid ethyl ester dihydrochloride (1 g) and potassium bicarbonate (1.57 g) in acetonitrile (10 ml) was added methanesulfonic acid indane-2-yl ester (0.69 g) and the mixture was stirred under refluxing for 8 hours. The reaction mixture was pulverized with water. The precipitate was collected by filtration and dried over under reduced pressure. The powder was purified by column chromatography on silica gel using methanol/dichloromethane (50:1) as the eluent to give 4-(4-indan-2-yl-piperazin-1-yl)benzoic acid ethyl ester (0.38 g). under refluxing for 8 hours The precipitate was collected by filtration dried over under reduced pressure The powder was purified by column chromatography on silica gel

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

Procedure: To a solution of 2-indanol (4 g) and triethylamine (5.8 ml) in dichloromethane (40 ml) was added dropwise with stirring methanesulfonylchloride (2.8 ml) in an ice-bath. The mixture was then stirred for 1.5 hours. The reaction mixture was added to a mixture of water and dichloromethane. The organic layer was taken and dried over magnesium sulfate. The magnesium sulfate was filtered off, and the filtrate was concentrated under reduced pressure to give methanesulfonic acid indan-2-yl ester (6.29 g). dried over magnesium sulfate The magnesium sulfate was filtered off the filtrate was concentrated under reduced pressure