5-甲氨基-甲基-呋喃甲醇

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

实验步骤: To a stirred solution of N-[2-mercaptoethyl]-N'-methylurea (2.0 g) in concentrated hydrochloric acid at 0° was added dropwise a solution of 5-(methylamino)methyl-2-furanmethanol (2.0 g) in water (3 ml). After 24 hr, ethyl acetate (100 ml) and excess anhydrous sodium carbonate were added. The suspension was filtered, the filtrate evaporated to dryness and the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1). The relevant eluate was evaporated to dryness to give an oil identical to product of Example 4 (0.42 g). The suspension was filtered the filtrate evaporated to dryness the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1) The relevant eluate was evaporated to dryness

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

实验步骤: A mixture of 2-furanmethanol (49 g), methylamine hydrochloride (51.5 g) and 36% formaldehyde solution (50 ml) was stirred at 0°-3° for 3 hr and allowed to stand for 16 hr. Excess sodium carbonate was added and the slurry extracted with ethyl acetate. After removal of solvent the residue was distilled to give 5-(methylamino)methyl-2-furanmethanol (36.2 g) b.p. 111°-113° (0.2 mm). to stand for 16 hr the slurry extracted with ethyl acetate After removal of solvent the residue was distilled

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

实验步骤: To a stirred solution of N-[2-mercaptoethyl]-N'-methylurea (2.0 g) in concentrated hydrochloric acid at 0° was added dropwise a solution of 5-(methylamino)methyl-2-furanmethanol (2.0 g) in water (3 ml). After 24 hr, ethyl acetate (100 ml) and excess anhydrous sodium carbonate were added. The suspension was filtered, the filtrate evaporated to dryness and the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1). The relevant eluate was evaporated to dryness to give an oil identical to product of Example 4 (0.42 g). The suspension was filtered the filtrate evaporated to dryness the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1) The relevant eluate was evaporated to dryness

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

实验步骤: To a stirred solution of N-[2-mercaptoethyl]-N'-methylurea (2.0 g) in concentrated hydrochloric acid at 0° was added dropwise a solution of 5-(methylamino)methyl-2-furanmethanol (2.0 g) in water (3 ml). After 24 hr, ethyl acetate (100 ml) and excess anhydrous sodium carbonate were added. The suspension was filtered, the filtrate evaporated to dryness and the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1). The relevant eluate was evaporated to dryness to give an oil identical to product of Example 4 (0.42 g). The suspension was filtered the filtrate evaporated to dryness the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1) The relevant eluate was evaporated to dryness

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

实验步骤: A mixture of 2-furanmethanol (49 g), methylamine hydrochloride (51.5 g) and 36% formaldehyde solution (50 ml) was stirred at 0°-3° for 3 hr and allowed to stand for 16 hr. Excess sodium carbonate was added and the slurry extracted with ethyl acetate. After removal of solvent the residue was distilled to give 5-(methylamino)methyl-2-furanmethanol (36.2 g) b.p. 111°-113° (0.2 mm). to stand for 16 hr the slurry extracted with ethyl acetate After removal of solvent the residue was distilled

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

实验步骤: A mixture of 2-furanmethanol (49 g), methylamine hydrochloride (51.5 g) and 36% formaldehyde solution (50 ml) was stirred at 0°-3° for 3 hr and allowed to stand for 16 hr. Excess sodium carbonate was added and the slurry extracted with ethyl acetate. After removal of solvent the residue was distilled to give 5-(methylamino)methyl-2-furanmethanol (36.2 g) b.p. 111°-113° (0.2 mm). to stand for 16 hr the slurry extracted with ethyl acetate After removal of solvent the residue was distilled

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

实验步骤: To a stirred solution of N-[2-mercaptoethyl]-N'-methylurea (2.0 g) in concentrated hydrochloric acid at 0° was added dropwise a solution of 5-(methylamino)methyl-2-furanmethanol (2.0 g) in water (3 ml). After 24 hr, ethyl acetate (100 ml) and excess anhydrous sodium carbonate were added. The suspension was filtered, the filtrate evaporated to dryness and the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1). The relevant eluate was evaporated to dryness to give an oil identical to product of Example 4 (0.42 g). The suspension was filtered the filtrate evaporated to dryness the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1) The relevant eluate was evaporated to dryness

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

实验步骤: A mixture of 2-furanmethanol (49 g), methylamine hydrochloride (51.5 g) and 36% formaldehyde solution (50 ml) was stirred at 0°-3° for 3 hr and allowed to stand for 16 hr. Excess sodium carbonate was added and the slurry extracted with ethyl acetate. After removal of solvent the residue was distilled to give 5-(methylamino)methyl-2-furanmethanol (36.2 g) b.p. 111°-113° (0.2 mm). to stand for 16 hr the slurry extracted with ethyl acetate After removal of solvent the residue was distilled

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

实验步骤: To a stirred solution of N-[2-mercaptoethyl]-N'-methylurea (2.0 g) in concentrated hydrochloric acid at 0° was added dropwise a solution of 5-(methylamino)methyl-2-furanmethanol (2.0 g) in water (3 ml). After 24 hr, ethyl acetate (100 ml) and excess anhydrous sodium carbonate were added. The suspension was filtered, the filtrate evaporated to dryness and the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1). The relevant eluate was evaporated to dryness to give an oil identical to product of Example 4 (0.42 g). The suspension was filtered the filtrate evaporated to dryness the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1) The relevant eluate was evaporated to dryness

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

实验步骤: A mixture of 2-furanmethanol (49 g), methylamine hydrochloride (51.5 g) and 36% formaldehyde solution (50 ml) was stirred at 0°-3° for 3 hr and allowed to stand for 16 hr. Excess sodium carbonate was added and the slurry extracted with ethyl acetate. After removal of solvent the residue was distilled to give 5-(methylamino)methyl-2-furanmethanol (36.2 g) b.p. 111°-113° (0.2 mm). to stand for 16 hr the slurry extracted with ethyl acetate After removal of solvent the residue was distilled

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

实验步骤: To a stirred solution of N-[2-mercaptoethyl]-N'-methylurea (2.0 g) in concentrated hydrochloric acid at 0° was added dropwise a solution of 5-(methylamino)methyl-2-furanmethanol (2.0 g) in water (3 ml). After 24 hr, ethyl acetate (100 ml) and excess anhydrous sodium carbonate were added. The suspension was filtered, the filtrate evaporated to dryness and the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1). The relevant eluate was evaporated to dryness to give an oil identical to product of Example 4 (0.42 g). The suspension was filtered the filtrate evaporated to dryness the oily residue column chromatographed (silica/methanol:0.88 ammonia 79:1) The relevant eluate was evaporated to dryness

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

实验步骤: A mixture of 2-furanmethanol (49 g), methylamine hydrochloride (51.5 g) and 36% formaldehyde solution (50 ml) was stirred at 0°-3° for 3 hr and allowed to stand for 16 hr. Excess sodium carbonate was added and the slurry extracted with ethyl acetate. After removal of solvent the residue was distilled to give 5-(methylamino)methyl-2-furanmethanol (36.2 g) b.p. 111°-113° (0.2 mm). to stand for 16 hr the slurry extracted with ethyl acetate After removal of solvent the residue was distilled