2-氨基-6-甲基苄醇

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: To a solution of (2-amino-6-methyl-phenyl)-methanol (2.74 g, 20 mmol) and triethylamine (4.04 g, 40 mmol) in THF (150 mL), phosgene (12.5% solution in toluene, 17.42 g, 22 nmol) was added dropwise at 0° C. Reaction mixture was allowed to warm to room temperature and stirred for 16 hours. Water (150 mL) was added under stirring, followed by EtOAc (2×100 mL). EtOAc extracts were washed with water and brine and dried over MgSO4. The product (buff solid) was crystallized from EtOAc:pet. ether mixture. Reaction mixture under stirring EtOAc extracts were washed with water and brine dried over MgSO4 The product (buff solid) was crystallized from EtOAc

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

实验步骤: To a solution of (2-amino-6-methyl-phenyl)-methanol (2.74 g, 20 mmol) and triethylamine (4.04 g, 40 mmol) in THF (150 mL), phosgene (12.5% solution in toluene, 17.42 g, 22 mrnol) was added dropwise at 0° C. Reaction mixture was allowed to warm to room temperature and stirred for 16 hours. Water (150 mL) was added under stirring, followed by EtOAc (2×100 mL). EtOAc extracts were washed with water and brine and dried over MgSO4. The product (buff solid) was crystallized from EtOAc:pet. ether mixture. (Yield: 2.37=73%); mp 222-226° C.; MS (CI): M+1=163. Reaction mixture under stirring EtOAc extracts were washed with water and brine dried over MgSO4 The product (buff solid) was crystallized from EtOAc

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

实验步骤: To a solution of (2-amino-6-methyl-phenyl)-methanol (2.74 g, 20 mmol) and triethylamine (4.04 g, 40 mmol) in THF (150 mL), phosgene (12.5% solution in toluene, 17.42 g, 22 mrnol) was added dropwise at 0° C. Reaction mixture was allowed to warm to room temperature and stirred for 16 hours. Water (150 mL) was added under stirring, followed by EtOAc (2×100 mL). EtOAc extracts were washed with water and brine and dried over MgSO4. The product (buff solid) was crystallized from EtOAc:pet. ether mixture. (Yield: 2.37=73%); mp 222-226° C.; MS (CI): M+1=163. Reaction mixture under stirring EtOAc extracts were washed with water and brine dried over MgSO4 The product (buff solid) was crystallized from EtOAc

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

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

实验步骤: A solution of potassium cyanate (1.62 g) in water (5 ml) was added dropwise to a mixture of 2-amino-6-methylbenzyl alcohol (1.37 g), water (5 ml), and acetic acid (6 ml) at room temperature. After being stirred for 2.5 hours, the resulting precipitates were collected by filtration, washed with water, and dried to give 2-methyl-6-ureidobenzyl alcohol (1.33 g). the resulting precipitates were collected by filtration washed with water dried

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

实验步骤: To a suspension of 2-amino-6-methylbenzyl alcohol (30 g) in methylene chloride (300 ml) was added dropwise acetic anhydride (22.3 g) at 5° to 10° C. After being stirred for 3 hours, the mixture was neutralized with sodium bicarbonate aqueous solution to give precipitates. To said mixture was added chloroform to dissolve said precipitates and then the organic layer was washed with water and sodium chloride aqueous solution, dried over magnesium sulfate and evaporated in vacuo. The resultant residue was suspended in diethyl ether and the precipitates were collected by filtration to give 2-methyl-6-acetamidobenzyl alcohol (25.30 g). to give precipitates was added chloroform to dissolve said precipitates the organic layer was washed with water and sodium chloride aqueous solution dried over magnesium sulfate evaporated in vacuo the precipitates were collected by filtration

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

实验步骤: A solution of methyl chloroformate (0.416 g) in methylene chloride (1 ml) was added dropwise to a solution of 2-amino-6-methylbenzyl alcohol (0.549 g) and pyridine (0.364 g) in methylene chloride (10 ml) with ice cooling. After being stirred for 1 hour, the mixture was poured into 1N hydrochloric acid and extracted with methylene chloride. The extract was washed with water, dried over magnesium sulfate, and evaporated in vacuo. The crystalline residue was washed with n-hexane and dried to give 2-methyl-6-methoxycarbonylaminobenzyl alcohol (0.64 g). extracted with methylene chloride The extract was washed with water dried over magnesium sulfate evaporated in vacuo The crystalline residue was washed with n-hexane dried