1-oxido-4-(3-phenylpropyl)pyridin-1-ium

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

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 9 g (42.3 mmol) of 7-Bromo-5-fluoro-1H-indene (5a) in CH2Cl2 at 0° C. was added (S,S)-(+)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminomanganese(III)-chloride (Jacobsen catalyst; 1.2 g, 1.7 mmol) and 4-(3-phenylpropyl)pyridine N-oxide (1.8 g, 8.5 mmol). After stirring for 15 min at 0° C., the 0° C. cold buffered sodium hypochlorite solution was added and the mixture was stirred at 0° C. for 3 h. The resulting liquid layers were separated and the aqueous layer was extracted 3 times with CH2Cl2. The combined organic layers were washed with brine and dried over MgSO4. Solvents were evaporated and the crude product was purified by silica gel chromatography (eluting with 5 to 50% ethyl acetate in heptane). The product was recrystallized from heptane to give 3.2 g of (1aS,6aR)-5-Bromo-3-fluoro-6,6a-dihydro-1aH-1-oxa-cyclopropa[a]indene (6a) as white needles. the 0° C. was added the mixture was stirred at 0° C. for 3 h The resulting liquid layers were separated the aqueous layer was extracted 3 times with CH2Cl2 The combined organic layers were washed with brine dried over MgSO4 Solvents were evaporated the crude product was purified by silica gel chromatography (eluting with 5 to 50% ethyl acetate in heptane) The product was recrystallized from heptane

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 9 g (42.3 mmol) of 7-Bromo-5-fluoro-1H-indene (5a) in CH2Cl2 at 0° C. was added (S,S)-(+)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediaminomanganese(III)-chloride (Jacobsen catalyst; 1.2 g, 1.7 mmol) and 4-(3-phenylpropyl)pyridine N-oxide (1.8 g, 8.5 mmol). After stirring for 15 min at 0° C., the 0° C. cold buffered sodium hypochlorite solution was added and the mixture was stirred at 0° C. for 3 h. The resulting liquid layers were separated and the aqueous layer was extracted 3 times with CH2Cl2. The combined organic layers were washed with brine and dried over MgSO4. Solvents were evaporated and the crude product was purified by silica gel chromatography (eluting with 5 to 50% ethyl acetate in heptane). The product was recrystallized from heptane to give 3.2 g of (1aS,6aR)-5-Bromo-3-fluoro-6,6a-dihydro-1aH-1-oxa-cyclopropa[a]indene (6a) as white needles. the 0° C. was added the mixture was stirred at 0° C. for 3 h The resulting liquid layers were separated the aqueous layer was extracted 3 times with CH2Cl2 The combined organic layers were washed with brine dried over MgSO4 Solvents were evaporated the crude product was purified by silica gel chromatography (eluting with 5 to 50% ethyl acetate in heptane) The product was recrystallized from heptane

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

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of 4-phenylpropylpyridine-N-oxide (278 mg, 1.31 mmol) in methylene chloride (20 mL) was added (R,R)-Jacobsen catalyst (237.0 mg, 0.3732 mmol) and a solution of sodium hypochlorite (2.0 M in water; 16 mL, 32 mmol) at 0° C. The resulting brown suspension was stirred at 0° C. for 15 minutes then a solution of 6-chloro-1H-indene (1) (2.81 g, 18.6 mmol) in methylene chloride (20 mL) was added via syringe with simultaneous addition of additional sodium hypochlorite (2.0M in water; 16 mL, 32 mmol). The reaction was stirred at 0° C. for one hour then the ice bath was removed and the reaction was stirred at room temperature for 1 hr. An aliquot was taken and TLC on silica (hexanes) showed all starting material consumed. The reaction was poured into brine and extracted with methylene chloride. The combined extracts were washed with saline, then dried over sodium sulfate, filtered, and evaporated under reduced pressure to leave crude product which solidified when placed under hi-vacuum. Yield ˜3.7 g of a brown solid. 1H NMR (400 MHz, DMSO) δ 7.55 (d, J=7.6 Hz, 1H), 7.32 (s, 1H), 7.23 (d, J=7.3 Hz, 1H), 4.36 (s, 1H), 4.16 (s, 1H), 3.03 (dd, J=45.8, 18.2 Hz, 2H). at 0° C The reaction was stirred at 0° C. for one hour the ice bath was removed the reaction was stirred at room temperature for 1 hr consumed The reaction was poured into brine extracted with methylene chloride The combined extracts were washed with saline dried over sodium sulfate filtered evaporated under reduced pressure to leave crude product which

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of 4-phenylpropylpyridine-N-oxide (278 mg, 1.31 mmol) in methylene chloride (20 mL) was added (R,R)-Jacobsen catalyst (237.0 mg, 0.3732 mmol) and a solution of sodium hypochlorite (2.0 M in water; 16 mL, 32 mmol) at 0° C. The resulting brown suspension was stirred at 0° C. for 15 minutes then a solution of 6-chloro-1H-indene (1) (2.81 g, 18.6 mmol) in methylene chloride (20 mL) was added via syringe with simultaneous addition of additional sodium hypochlorite (2.0M in water; 16 mL, 32 mmol). The reaction was stirred at 0° C. for one hour then the ice bath was removed and the reaction was stirred at room temperature for 1 hr. An aliquot was taken and TLC on silica (hexanes) showed all starting material consumed. The reaction was poured into brine and extracted with methylene chloride. The combined extracts were washed with saline, then dried over sodium sulfate, filtered, and evaporated under reduced pressure to leave crude product which solidified when placed under hi-vacuum. Yield ˜3.7 g of a brown solid. 1H NMR (400 MHz, DMSO) δ 7.55 (d, J=7.6 Hz, 1H), 7.32 (s, 1H), 7.23 (d, J=7.3 Hz, 1H), 4.36 (s, 1H), 4.16 (s, 1H), 3.03 (dd, J=45.8, 18.2 Hz, 2H). at 0° C The reaction was stirred at 0° C. for one hour the ice bath was removed the reaction was stirred at room temperature for 1 hr consumed The reaction was poured into brine extracted with methylene chloride The combined extracts were washed with saline dried over sodium sulfate filtered evaporated under reduced pressure to leave crude product which

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of 4-phenylpropylpyridine-N-oxide (278 mg, 1.31 mmol) in methylene chloride (20 mL) was added (R,R)-Jacobsen catalyst (237.0 mg, 0.3732 mmol) and a solution of sodium hypochlorite (2.0 M in water; 16 mL, 32 mmol) at 0° C. The resulting brown suspension was stirred at 0° C. for 15 minutes then a solution of 6-chloro-1H-indene (1) (2.81 g, 18.6 mmol) in methylene chloride (20 mL) was added via syringe with simultaneous addition of additional sodium hypochlorite (2.0M in water; 16 mL, 32 mmol). The reaction was stirred at 0° C. for one hour then the ice bath was removed and the reaction was stirred at room temperature for 1 hr. An aliquot was taken and TLC on silica (hexanes) showed all starting material consumed. The reaction was poured into brine and extracted with methylene chloride. The combined extracts were washed with saline, then dried over sodium sulfate, filtered, and evaporated under reduced pressure to leave crude product which solidified when placed under hi-vacuum. Yield ˜3.7 g of a brown solid. 1H NMR (400 MHz, DMSO) δ 7.55 (d, J=7.6 Hz, 1H), 7.32 (s, 1H), 7.23 (d, J=7.3 Hz, 1H), 4.36 (s, 1H), 4.16 (s, 1H), 3.03 (dd, J=45.8, 18.2 Hz, 2H). at 0° C The reaction was stirred at 0° C. for one hour the ice bath was removed the reaction was stirred at room temperature for 1 hr consumed The reaction was poured into brine extracted with methylene chloride The combined extracts were washed with saline dried over sodium sulfate filtered evaporated under reduced pressure to leave crude product which

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 4-(3-phenylpropyl)pyridine N-oxide (68.88 mg, 0.323 mmol) in methylene chloride (6.00 mL) was added (S,S)-(+)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamino-manganese(III) chloride (58.62 mg, 0.09.23 mmol) and 2.0 M of sodium hypochlorite in water (4.00 mL) at 0° C. The resulting brown suspension was stirred at 0° C. for 15 min. To the cooled suspension was added a solution of 6-bromo-1H-indene (900 mg, 4.6141 mmol) in methylene chloride (6.00 mL) at 0° C. with simultaneous addition of 2.0 M of sodium hypochlorite in water (4.00 mL) at 0° C. The reaction was kept at 0° C. for 1 h. The reaction was allowed to warm up to room temperature and then stirred at room temperature overnight. The reaction mixture was poured into brine and then extracted with methylene chloride (4×40 mL). The combined extracts were dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure. The crude product was used directly for the next reaction. The ratio of the two diastereomers was 8/1. The reaction was kept at 0° C. for 1 h to warm up to room temperature stirred at room temperature overnight extracted with methylene chloride (4×40 mL) The combined extracts were dried over anhydrous Na2SO4 filtered evaporated under reduced pressure The crude product was used directly for the next reaction

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 4-(3-phenylpropyl)pyridine N-oxide (68.88 mg, 0.323 mmol) in methylene chloride (6.00 mL) was added (S,S)-(+)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamino-manganese(III) chloride (58.62 mg, 0.09.23 mmol) and 2.0 M of sodium hypochlorite in water (4.00 mL) at 0° C. The resulting brown suspension was stirred at 0° C. for 15 min. To the cooled suspension was added a solution of 6-bromo-1H-indene (900 mg, 4.6141 mmol) in methylene chloride (6.00 mL) at 0° C. with simultaneous addition of 2.0 M of sodium hypochlorite in water (4.00 mL) at 0° C. The reaction was kept at 0° C. for 1 h. The reaction was allowed to warm up to room temperature and then stirred at room temperature overnight. The reaction mixture was poured into brine and then extracted with methylen chloride (4×40 mL). The combined extracts were dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure. The crude product was used directly for the next reaction. The ratio of the two diastereomers was 8/1. The reaction was kept at 0° C. for 1 h to warm up to room temperature stirred at room temperature overnight extracted with methylen chloride (4×40 mL) The combined extracts were dried over anhydrous Na2SO4 filtered evaporated under reduced pressure The crude product was used directly for the next reaction

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 4-(3-phenylpropyl)pyridine N-oxide (68.88 mg, 0.323 mmol) in methylene chloride (6.00 mL) was added (S,S)-(+)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamino-manganese(III) chloride (58.62 mg, 0.09.23 mmol) and 2.0 M of sodium hypochlorite in water (4.00 mL) at 0° C. The resulting brown suspension was stirred at 0° C. for 15 min. To the cooled suspension was added a solution of 6-bromo-1H-indene (900 mg, 4.6141 mmol) in methylene chloride (6.00 mL) at 0° C. with simultaneous addition of 2.0 M of sodium hypochlorite in water (4.00 mL) at 0° C. The reaction was kept at 0° C. for 1 h. The reaction was allowed to warm up to room temperature and then stirred at room temperature overnight. The reaction mixture was poured into brine and then extracted with methylen chloride (4×40 mL). The combined extracts were dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure. The crude product was used directly for the next reaction. The ratio of the two diastereomers was 8/1. The reaction was kept at 0° C. for 1 h to warm up to room temperature stirred at room temperature overnight extracted with methylen chloride (4×40 mL) The combined extracts were dried over anhydrous Na2SO4 filtered evaporated under reduced pressure The crude product was used directly for the next reaction

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 4-(3-phenylpropyl)pyridine N-oxide (68.88 mg, 0.323 mmol) in methylene chloride (6.00 mL) was added (S,S)-(+)-N,N′-bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamino-manganese(III) chloride (58.62 mg, 0.09.23 mmol) and 2.0 M of sodium hypochlorite in water (4.00 mL) at 0° C. The resulting brown suspension was stirred at 0° C. for 15 min. To the cooled suspension was added a solution of 6-bromo-1H-indene (900 mg, 4.6141 mmol) in methylene chloride (6.00 mL) at 0° C. with simultaneous addition of 2.0 M of sodium hypochlorite in water (4.00 mL) at 0° C. The reaction was kept at 0° C. for 1 h. The reaction was allowed to warm up to room temperature and then stirred at room temperature overnight. The reaction mixture was poured into brine and then extracted with methylene chloride (4×40 mL). The combined extracts were dried over anhydrous Na2SO4, filtered and evaporated under reduced pressure. The crude product was used directly for the next reaction. The ratio of the two diastereomers was 8/1. The reaction was kept at 0° C. for 1 h to warm up to room temperature stirred at room temperature overnight extracted with methylene chloride (4×40 mL) The combined extracts were dried over anhydrous Na2SO4 filtered evaporated under reduced pressure The crude product was used directly for the next reaction

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

Procedure: To a solution (2 mL) of ethyl acetate containing 100 mg (0.53 mmol) of 6-ethyl-2,2-dimethyl-2H-1-benzopyran (synthesized according to the method described in Jananese Patent Application Laid-open No. Sho 62-273972), salen manganese complex (17 mg, 0.016 mmol), 4-(3-phenylpropyl)-pyridineoxide) (12 mg, 0.053 mmol) and aqueous sodium hypochlorite solution (0.96 g, 1.14 Kg/mol, 1.1 mmol) were added at room temperature, and stirred for two hours at room temperature. After Celite filtration upon addition of water, organic phase was separated, washed with aqueous saturated sodium chloride solution, and dried over anhydride sodium sulfate. After distilling off the solvent, the residue was purified by silica gel column chromatography (chloroform) to obtain 75 mg of the intended compound in brown oily substance (Yield 69%). were added at room temperature After Celite filtration upon addition of water, organic phase was separated washed with aqueous saturated sodium chloride solution dried over anhydride sodium sulfate After distilling off the solvent the residue was purified by silica gel column chromatography (chloroform)