N-甲基-2-苯基甲氧基苯胺

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred ice-cold solution of (27) (0.21 g., 1.0 mM) in dried methylene chloride (10 mL) containing anhydrous pyridine (0.3 mL) is added (7) (0.27 g., 1.03 mM), dissolved in 5 methylene chloride (5 mL), dropwise over 1 minute (some methylene chloride used as a rinse). After stirring cold for 30 minutes, the mixture is allowed to stir at ambient temperature for completion of the reaction. The reaction mixture is washed 1× with 1N HCL, dried (Na2SO4) and filtered. Flash chromatography (silica gel, 20% ethyl acetate/hexane as eluant) of the residue obtained gives the title compound (28) (0.33 g) as a colorless oil. a rinse) to stir at ambient temperature for completion of the reaction The reaction mixture is washed 1× with 1N HCL dried (Na2SO4) filtered Flash chromatography (silica gel, 20% ethyl acetate/hexane as eluant) of the residue obtained

反应条件: temp:59.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A well-stirred solution of (25) (0.295 g., 1.0 mM), methyl iodide (0.25 mL, 4.0 mM) and anhydrous acetone (5.0 ml) is set in an oil-bath previously heated to 59° C., and kept for 2 minutes. Powdered anhydrous potassium hydroxide (0.225 g., 4.0 mM) is added all at once, and the bath temperature allowed to rise to 65° C. Clumping-up of some of the KOH is observed. After 15 additional minutes, the reaction mixture is removed from the bath, allowed to cool, and the volatiles removed. Methanol (7 mL) is added with stirring to the residue of N-Methyl-N-trifluoroacetyl-2-benzyloxyaniline (26) obtained, followed by water (1 mL), and methanol (2 mL) (to wash down the sides). After stirring overnight at ambient temperatures, the methanol is removed in vacuo, the residue distributed between ether and water, separated, the organic layer washed with additional water, saturated sodium chloride solution, and dried over sodium sulfate. Concentration of the filtered ether solution gives the title compound (27) (0.212 g.) as an oil. NMR, MS, and TLC indicate little, if any, dimethyl compound. to rise to 65° C After 15 additional minutes, the reaction mixture is removed from the bath to cool the volatiles removed Methanol (7 mL) is added obtained to wash down the sides) After stirring overnight at ambient temperatures the methanol is removed in vacuo separated the organic layer washed with additional water, saturated sodium chloride solution dried over sodium sulfate

反应条件: temp:59.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A well-stirred solution of (25) (0.295 g., 1.0 mM), methyl iodide (0.25 mL, 4.0 mM) and anhydrous acetone (5.0 ml) is set in an oil-bath previously heated to 59° C., and kept for 2 minutes. Powdered anhydrous potassium hydroxide (0.225 g., 4.0 mM) is added all at once, and the bath temperature allowed to rise to 65° C. Clumping-up of some of the KOH is observed. After 15 additional minutes, the reaction mixture is removed from the bath, allowed to cool, and the volatiles removed. Methanol (7 mL) is added with stirring to the residue of N-Methyl-N-trifluoroacetyl-2-benzyloxyaniline (26) obtained, followed by water (1 mL), and methanol (2 mL) (to wash down the sides). After stirring overnight at ambient temperatures, the methanol is removed in vacuo, the residue distributed between ether and water, separated, the organic layer washed with additional water, saturated sodium chloride solution, and dried over sodium sulfate. Concentration of the filtered ether solution gives the title compound (27) (0.212 g.) as an oil. NMR, MS, and TLC indicate little, if any, dimethyl compound. to rise to 65° C After 15 additional minutes, the reaction mixture is removed from the bath to cool the volatiles removed Methanol (7 mL) is added obtained to wash down the sides) After stirring overnight at ambient temperatures the methanol is removed in vacuo separated the organic layer washed with additional water, saturated sodium chloride solution dried over sodium sulfate

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred ice-cold solution of (27) (0.21 g., 1.0 mM) in dried methylene chloride (10 mL) containing anhydrous pyridine (0.3 mL) is added (7) (0.27 g., 1.03 mM), dissolved in 5 methylene chloride (5 mL), dropwise over 1 minute (some methylene chloride used as a rinse). After stirring cold for 30 minutes, the mixture is allowed to stir at ambient temperature for completion of the reaction. The reaction mixture is washed 1× with , 1N HCL, dried (Na2SO4) and filtered. Flash chromatography (silica gel, 20% ethyl acetate/hexane as eluant) of the residue obtained gives the title compound (28) (0.33 g) as a colorless oil. a rinse) to stir at ambient temperature for completion of the reaction The reaction mixture is washed 1× with , 1N HCL dried (Na2SO4) filtered Flash chromatography (silica gel, 20% ethyl acetate/hexane as eluant) of the residue obtained

反应条件: temp:59.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A well-stirred solution of (25) (0.295 g., 1.0 mM), methyl iodide (0.25 mL, 4.0 mM) and anhydrous acetone (5.0 ml) is set in an oil-bath previously heated to 59° C., and kept for 2 minutes. Powdered anhydrous potassium hydroxide (0.225 g., 4.0 mM) is added all at once, and the bath temperature allowed to rise to 65° C. Clumping-up of some of the KOH is observed. After 15 additional minutes, the reaction mixture is removed from the bath, allowed to cool, and the volatiles removed. Methanol (7 mL) is added with stirring to the residue of N-Methyl-N-trifluoroacetyl-2-benzyloxyaniline (26) obtained, followed by water (1 mL), and methanol (2 mL) (to wash down the sides). After stirring overnight at ambient temperatures, the methanol is removed in vacuo, the residue distributed between ether and water, separated, the organic layer washed with additional water, saturated sodium chloride solution, and dried over sodium sulfate. Concentration of the filtered ether solution gives the title compound (27) (0.212 g.) as an oil. NMR, MS, and TLC indicate little, if any, dimethyl compound. to rise to 65° C After 15 additional minutes, the reaction mixture is removed from the bath to cool the volatiles removed Methanol (7 mL) is added obtained to wash down the sides) After stirring overnight at ambient temperatures the methanol is removed in vacuo separated the organic layer washed with additional water, saturated sodium chloride solution dried over sodium sulfate

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred ice-cold solution of (27) (0.21 g., 1.0 mM) in dried methylene chloride (10 mL) containing anhydrous pyridine (0.3 mL) is added (7) (0.27 g., 1.03 mM), dissolved in 5 methylene chloride (5 mL), dropwise over 1 minute (some methylene chloride used as a rinse). After stirring cold for 30 minutes, the mixture is allowed to stir at ambient temperature for completion of the reaction. The reaction mixture is washed 1× with 1N HCL, dried (Na2SO4) and filtered. Flash chromatography (silica gel, 20% ethyl acetate/hexane as eluant) of the residue obtained gives the title compound (28) (0.33 g) as a colorless oil. a rinse) to stir at ambient temperature for completion of the reaction The reaction mixture is washed 1× with 1N HCL dried (Na2SO4) filtered Flash chromatography (silica gel, 20% ethyl acetate/hexane as eluant) of the residue obtained

反应条件: temp:59.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A well-stirred solution of (25) (0.295 g., 1.0 mM), methyl iodide (0.25 mL, 4.0 mM) and anhydrous acetone (5.0 ml) is set in an oil-bath previously heated to 59° C., and kept for 2 minutes. Powdered anhydrous potassium hydroxide (0.225 g., 4.0 mM) is added all at once, and the bath temperature allowed to rise to 65° C. Clumping-up of some of the KOH is observed. After 15 additional minutes, the reaction mixture is removed from the bath, allowed to cool, and the volatiles removed. Methanol (7 mL) is added with stirring to the residue of N-Methyl-N-trifluoroacetyl-2-benzyloxyaniline (26) obtained, followed by water (1 mL), and methanol (2 mL) (to wash down the sides). After stirring overnight at ambient temperatures, the methanol is removed in vacuo, the residue distributed between ether and water, separated, the organic layer washed with additional water, saturated sodium chloride solution, and dried over sodium sulfate. Concentration of the filtered ether solution gives the title compound (27) (0.212 g.) as an oil. NMR, MS, and TLC indicate little, if any, dimethyl compound. to rise to 65° C After 15 additional minutes, the reaction mixture is removed from the bath to cool the volatiles removed Methanol (7 mL) is added obtained to wash down the sides) After stirring overnight at ambient temperatures the methanol is removed in vacuo separated the organic layer washed with additional water, saturated sodium chloride solution dried over sodium sulfate

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a stirred ice-cold solution of (27) (0.21 g., 1.0 mM) in dried methylene chloride (10 mL) containing anhydrous pyridine (0.3 mL) is added (7) (0.27 g., 1.03 mM), dissolved in 5 methylene chloride (5 mL), dropwise over 1 minute (some methylene chloride used as a rinse). After stirring cold for 30 minutes, the mixture is allowed to stir at ambient temperature for completion of the reaction. The reaction mixture is washed 1× with 1N HCL, dried (Na2SO4) and filtered. Flash chromatography (silica gel, 20% ethyl acetate/hexane as eluant) of the residue obtained gives the title compound (28) (0.33 g) as a colorless oil. a rinse) to stir at ambient temperature for completion of the reaction The reaction mixture is washed 1× with 1N HCL dried (Na2SO4) filtered Flash chromatography (silica gel, 20% ethyl acetate/hexane as eluant) of the residue obtained

反应条件: temp:59.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A well-stirred solution of (25) (0.295 g., 1.0 mM), methyl iodide (0.25 mL, 4.0 mM) and anhydrous acetone (5.0 ml) is set in an oil-bath previously heated to 59° C., and kept for 2 minutes. Powdered anhydrous potassium hydroxide (0.225 g., 4.0 mM) is added all at once, and the bath temperature allowed to rise to 65° C. Clumping-up of some of the KOH is observed. After 15 additional minutes, the reaction mixture is removed from the bath, allowed to cool, and the volatiles removed. Methanol (7 mL) is added with stirring to the residue of N-Methyl-N-trifluoroacetyl-2-benzyloxyaniline (26) obtained, followed by water (1 mL), and methanol (2 mL) (to wash down the sides). After stirring overnight at ambient temperatures, the methanol is removed in vacuo, the residue distributed between ether and water, separated, the organic layer washed with additional water, saturated sodium chloride solution, and dried over sodium sulfate. Concentration of the filtered ether solution gives the title compound (27) (0.212 g.) as an oil. NMR, MS, and TLC indicate little, if any, dimethyl compound. to rise to 65° C After 15 additional minutes, the reaction mixture is removed from the bath to cool the volatiles removed Methanol (7 mL) is added obtained to wash down the sides) After stirring overnight at ambient temperatures the methanol is removed in vacuo separated the organic layer washed with additional water, saturated sodium chloride solution dried over sodium sulfate