3-methyl-5-phenylpentan-1-ol

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Phenoxanol in the amount of 35.80 g (0.201 mol) and diethyl p-phthalate in the amount of 13.00 g (0.067 mol) were combined in a 250 ml flask fitted with a heating mantel, take-off condenser, internal thermometer, and argon inlet. Sodium methoxide in the amount of 380 mg (6.70 mmol) was added to the contents of the flask. The mixture was heated to 100° C. for 5 h during which time it became very thick. The mixture was filtered with dichloromethane, concentrated by rotary evaporation, and stripped by Kugelrohr distillation to yield an oil. The oil was purified by column chromatography on silica gel eluting with a 2% solution of ethyl acetate in hexanes to yield a colorless oil that crystallized on standing. Purity of the product was determined by thin layer chromatography and the structure confirmed by 1H and 13C NMR. fitted with a heating mantel, take-off condenser The mixture was filtered with dichloromethane concentrated by rotary evaporation stripped by Kugelrohr distillation to yield an oil The oil was purified by column chromatography on silica gel eluting with a 2% solution of ethyl acetate in hexanes to yield a colorless oil that crystallized

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

Procedure: A 127.05 g (1.125 mol) of chloroacetyl chloride and 200 ml of dichloromethane were put into a flask and, while stirring under ice-cooling, a mixture consisting of 199.6 g (1.12 mol) of 3-methyl-5-phenylpentanol and 88.59 g (1.12 mol) of pyridine was added dropwise thereto spending 2 hours (reaction temperature 5 to 15° C.). After completion of the dropwise addition, this was further stirred at room temperature for 3 hours, and white crystals of the thus precipitated pyridine hydrochloride were removed by filtration. The reaction mixture was washed with water (3×300 ml), the organic phase was dehydrated with anhydrous magnesium sulfate and then the solvent was evaporated under a reduced pressure. By distilling the remained yellow oil under a reduced pressure, the title compound was obtained as a light yellow transparent oil. Yield 242.25 g (0.849 mol; yield 84.9%, boiling point 148-151° C./0.2 kPa). cooling was added dropwise (reaction temperature 5 to 15° C.) After completion of the dropwise addition this was further stirred at room temperature for 3 hours white crystals of the thus precipitated pyridine hydrochloride were removed by filtration The reaction mixture was washed with water (3×300 ml) the solvent was evaporated under a reduced pressure By distilling the remained yellow oil under a reduced pressure

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

Procedure: A 127.05 g (1.125 mol) of chloroacetyl chloride and 200 ml of dichloromethane were put into a flask and, while stirring under ice-cooling, a mixture consisting of 199.6 g (1.12 mol) of 3-methyl-5-phenylpentanol and 88.59 g (1.12 mol) of pyridine was added dropwise thereto spending 2 hours (reaction temperature 5 to 15° C.). After completion of the dropwise addition, this was further stirred at room temperature for 3 hours, and white crystals of the thus precipitated pyridine hydrochloride were removed by filtration. The reaction mixture was washed with water (3×300 ml), the organic phase was dehydrated with anhydrous magnesium sulfate and then the solvent was evaporated under a reduced pressure. By distilling the remained yellow oil under a reduced pressure, the title compound was obtained as a light yellow transparent oil. Yield 242.25 g (0.849 mol; yield 84.9%, boiling point 148-151° C./0.2 kPa). cooling was added dropwise (reaction temperature 5 to 15° C.) After completion of the dropwise addition this was further stirred at room temperature for 3 hours white crystals of the thus precipitated pyridine hydrochloride were removed by filtration The reaction mixture was washed with water (3×300 ml) the solvent was evaporated under a reduced pressure By distilling the remained yellow oil under a reduced pressure

Conditions: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Phenoxanol (30.00 g, 0.168 mol) and pyridine (130 mL) are combined in a flask fitted with a condenser, internal thermometer, mechanical stirrer and argon inlet. The solution is cooled to -10° C. and to it is added p-toluenesulfonyl chloride (39.28 g, 0.202 mol) in portions via Gooch tubing so as to maintain the reaction temperature between -10°-0° C. After 3 h, water (20 mL) is added in portions so as to keep the temperature of the reaction below 5° C. The reaction mixture is warmed to room temperature and then poured into a separatory funnel containing 275 mL of ether. The layers are separated and the organic layer is washed with 5M H2SO4 (75 mL), saturated CuSO4 solution (75 mL), water (2×75 mL) and saturated NaHCO3 solution (75 mL). After drying over MgSO4, the organic layer is filtered and concentrated to leave a light yellow liquid as phenoxanyl p-toluenesulfonate. Purity of the product is determined by thin layer chromatography and the structure confirmed by 1H and 13C NMR. fitted with a condenser to maintain the reaction temperature between -10°-0° C the temperature of the reaction below 5° C The reaction mixture is warmed to room temperature poured into a separatory funnel The layers are separated the organic layer is washed with 5M H2SO4 (75 mL), saturated CuSO4 solution (75 mL), water (2×75 mL) and saturated NaHCO3 solution (75 mL) After drying over MgSO4 the organic layer is filtered concentrated

Conditions: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Phenoxanol (30.00 g, 0.168 mol) and pyridine (130 mL) are combined in a flask fitted with a condenser, internal thermometer, mechanical stirrer and argon inlet. The solution is cooled to -10° C. and to it is added p-toluenesulfonyl chloride (39.28 g, 0.202 mol) in portions via Gooch tubing so as to maintain the reaction temperature between -10°-0° C. After 3 h, water (20 mL) is added in portions so as to keep the temperature of the reaction below 5° C. The reaction mixture is warmed to room temperature and then poured into a separatory funnel containing 275 mL of ether. The layers are separated and the organic layer is washed with 5M H2SO4 (75 mL), saturated CuSO4 solution (75 mL), water (2×75 mL) and saturated NaHCO3 solution (75 mL). After drying over MgSO4, the organic layer is filtered and concentrated to leave a light yellow liquid as phenoxanyl p-toluenesulfonate. Purity of the product is determined by thin layer chromatography and the structure confirmed by 1H and 13C NMR. fitted with a condenser to maintain the reaction temperature between -10°-0° C the temperature of the reaction below 5° C The reaction mixture is warmed to room temperature poured into a separatory funnel The layers are separated the organic layer is washed with 5M H2SO4 (75 mL), saturated CuSO4 solution (75 mL), water (2×75 mL) and saturated NaHCO3 solution (75 mL) After drying over MgSO4 the organic layer is filtered concentrated

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

Procedure: 5 g (28 mmol) Phenoxanol (3-Methyl-5-phenyl-pentan-1-ol) is dissolved in 200 ml dichloromethane under nitrogen and stirring. Triphenylphosphine (8.8 g, 34 mmol) and 4.2 g (53 mmol) pyridine are added at 25° C. After cooling to 0° C. iodine (8.5 g, 34 mmol) is added. After 2 h stirring at 0° C. the reaction mixture is poured on ice-cooled 1 N HCl and extracted with dichloromethane. The combined organic phases are washed with 10% Na2S2O3, sat. NaHCO3 and sat. NaCl. Drying over MgSO4 and evaporation gives 17 g of a residue which is triturated with hexane and filtered over a 5 cm Silicagel pad. The filtrate is evaporated under reduced pressure and dried under high vacuum giving 7.1 g of 7c as a colorless oil. is added After 2 h stirring at 0° C. the reaction mixture is poured on ice- extracted with dichloromethane The combined organic phases are washed with 10% Na2S2O3, sat. NaHCO3 and sat. NaCl Drying over MgSO4 and evaporation

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

Procedure: 5 g (28 mmol) Phenoxanol (3-Methyl-5-phenyl-pentan-1-ol) is dissolved in 200 ml dichloromethane under nitrogen and stirring. Triphenylphosphine (8.8 g, 34 mmol) and 4.2 g (53 mmol) pyridine are added at 25° C. After cooling to 0° C. iodine (8.5 g, 34 mmol) is added. After 2 h stirring at 0° C. the reaction mixture is poured on ice-cooled 1 N HCl and extracted with dichloromethane. The combined organic phases are washed with 10% Na2S2O3, sat. NaHCO3 and sat. NaCl. Drying over MgSO4 and evaporation gives 17 g of a residue which is triturated with hexane and filtered over a 5 cm Silicagel pad. The filtrate is evaporated under reduced pressure and dried under high vacuum giving 7.1 g of 7c as a colorless oil. is added After 2 h stirring at 0° C. the reaction mixture is poured on ice- extracted with dichloromethane The combined organic phases are washed with 10% Na2S2O3, sat. NaHCO3 and sat. NaCl Drying over MgSO4 and evaporation

Conditions: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Phenoxanol (30.00 g, 0.168 mol) and pyridine (130 mL) are combined in a flask fitted with a condenser, internal thermometer, mechanical stirrer and argon inlet. The solution is cooled to -10° C. and to it is added p-toluenesulfonyl chloride (39.28 g, 0.202 mol) in portions via Gooch tubing so as to maintain the reaction temperature between -10°-0° C. After 3 h, water (20 mL) is added in portions so as to keep the temperature of the reaction below 5° C. The reaction mixture is warmed to room temperature and then poured into a separatory funnel containing 275 mL of ether. The layers are separated and the organic layer is washed with 5M H2SO4 (75 mL), saturated CuSO4 solution (75 mL), water (2×75 mL) and saturated NaHCO3 solution (75 mL). After drying over MgSO4, the organic layer is filtered and concentrated to leave a light yellow liquid as phenoxanyl p-toluenesulfonate. Purity of the product is determined by thin layer chromatography and the structure confirmed by 1H and 13C NMR. fitted with a condenser to maintain the reaction temperature between -10°-0° C the temperature of the reaction below 5° C The reaction mixture is warmed to room temperature poured into a separatory funnel The layers are separated the organic layer is washed with 5M H2SO4 (75 mL), saturated CuSO4 solution (75 mL), water (2×75 mL) and saturated NaHCO3 solution (75 mL) After drying over MgSO4 the organic layer is filtered concentrated

Conditions: temp:-10.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: Phenoxanol (30.00 g, 0.168 mol) and pyridine (130 mL) are combined in a flask fitted with a condenser, internal thermometer, mechanical stirrer and argon inlet. The solution is cooled to -10° C. and to it is added p-toluenesulfonyl chloride (39.28 g, 0.202 mol) in portions via Gooch tubing so as to maintain the reaction temperature between -10°-0° C. After 3 h, water (20 mL) is added in portions so as to keep the temperature of the reaction below 5° C. The reaction mixture is warmed to room temperature and then poured into a separatory funnel containing 275 mL of ether. The layers are separated and the organic layer is washed with 5M H2SO4 (75 mL), saturated CuSO4 solution (75 mL), water (2×75 mL) and saturated NaHCO3 solution (75 mL). After drying over MgSO4, the organic layer is filtered and concentrated to leave a light yellow liquid as phenoxanyl p-toluenesulfonate. Purity of the product is determined by thin layer chromatography and the structure confirmed by 1H and 13C NMR. fitted with a condenser to maintain the reaction temperature between -10°-0° C the temperature of the reaction below 5° C The reaction mixture is warmed to room temperature poured into a separatory funnel The layers are separated the organic layer is washed with 5M H2SO4 (75 mL), saturated CuSO4 solution (75 mL), water (2×75 mL) and saturated NaHCO3 solution (75 mL) After drying over MgSO4 the organic layer is filtered concentrated

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

Procedure: According to the same procedure, 3-(4-diethylamino-2-hydroxy-phenyl)-but-2-enoic acid 3-methyl-5-phenyl-pentyl ester was prepared from 3-(4-diethylamino-2-hydroxy-phenyl)-but-2-enoic acid ethyl ester, 3-methyl-5-phenyl-pentanol and tetraisopropyl-o-titanate.

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

Procedure: According to the same procedure, 3-(4-diethylamino-2-hydroxy-phenyl)-but-2-enoic acid 3-methyl-5-phenyl-pentyl ester was prepared from 3-(4-diethylamino-2-hydroxy-phenyl)-but-2-enoic acid ethyl ester, 3-methyl-5-phenyl-pentanol and tetraisopropyl-o-titanate.

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

Procedure: According to the same procedure, 3-(2-hydroxy-5-methyl-phenyl)-acrylic acid 3-methyl-5-phenyl-pentyl ester was prepared from 3-(2-hydroxy-.5-methyl-phenyl)-acrylic acid ethyl ester, 3-methyl-5-phenyl-pentanol and tetraisopropyl-o-titanate.