1-苯甲基-1-甲基脲

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 N-methyl-N-benzylurea (1.64 g, 0.01 mol) in chloroform (24 ml) and 50% aqueous sodium hydroxide solution (5.4 ml) was added triethylamine (0.1 g, 0.001 mol) and the mixture was vigorously stirred at room temperature for 3.5 h. After addition of water and chloroform, the mixture was stirred, then extracted with chloroform. The extracts were washed with water, dried with anhydrous sodium sulfate, and evaporated under reduced pressure to a residue, which was chromatographed to afford N-methyl-N-benzylcyanamide (1.2 g, 82% yield) as oily substance: NMR(CDCl3) δ 2.77(s, 3H), 4.14(s, 2H), 7.25-7.50(m, 5H); IR(neat) 2220, 1495, 1455, 1365, 730 cm-1. the mixture was stirred extracted with chloroform The extracts were washed with water dried with anhydrous sodium sulfate evaporated under reduced pressure to a residue, which was chromatographed

反应条件: temp:118.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To N-methylbenzylamine (12.1 g, 0.1 mol) was added urea (6.0 g, 0.1 mol). After stirred at 118° C. for 4 h, the mixture was cooled to room temperature. The solidified mixture was ground to a powder, washed with n-hexane and recrystallized with ethyl acetate to afford N-methyl-N-benzylurea (12.3 g, 75% yield): mp 125°-129° C. the mixture was cooled to room temperature washed with n-hexane recrystallized with ethyl acetate

反应条件: temp:118.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To N-methylbenzylamine (12.1 g, 0.1 mol) was added urea (6.0 g, 0.1 mol). After stirred at 118° C. for 4 h, the mixture was cooled to room temperature. The solidified mixture was ground to a powder, washed with n-hexane and recrystallized with ethyl acetate to afford N-methyl-N-benzylurea (12.3 g, 75% yield): mp 125°-129° C. the mixture was cooled to room temperature washed with n-hexane recrystallized with ethyl acetate

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 N-methyl-N-benzylurea (1.64 g, 0.01 mol) in chloroform (24 ml) and 50% aqueous sodium hydroxide solution (5.4 ml) was added triethylamine (0.1 g, 0.001 mol) and the mixture was vigorously stirred at room temperature for 3.5 h. After addition of water and chloroform, the mixture was stirred, then extracted with chloroform. The extracts were washed with water, dried with anhydrous sodium sulfate, and evaporated under reduced pressure to a residue, which was chromatographed to afford N-methyl-N-benzylcyanamide (1.2 g, 82% yield) as oily substance: NMR(CDCl3)δ 2.77(s, 3H), 4.14(s, 2H), 7.25-7.50(m, 5H); IR(neat) 2220, 1495, 1455, 1365, 730 cm-1. the mixture was stirred extracted with chloroform The extracts were washed with water dried with anhydrous sodium sulfate evaporated under reduced pressure to a residue, which was chromatographed

反应条件: temp:118.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To N-methylbenzylamine (12.1 g, 0.1 mol) was added urea (6.0 g, 0.1 mol). After stirred at 118° C. for 4 h, the mixture was cooled to room temperature. The solidified mixture was ground to a powder, washed with n-hexane and recrystallized with ethyl acetate to afford N-methyl-N-benzylurea (12.3 g, 75% yield): mp 125°-129° C. the mixture was cooled to room temperature washed with n-hexane recrystallized with ethyl acetate

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

实验步骤: To N-methyl-N-benzylurea (1.64 g, 0.01 mol) in chloroform (24 ml) and 50% aqueous sodium hydroxide solution (5.4 ml) was added triethylamine (0.1 g, 0.001 mol) and the mixture was vigorously stirred at room temperature for 3.5 h. After addition of water and chloroform, the mixture was stirred, then extracted with chloroform. The extracts were washed with water, dried with anhydrous sodium sulfate, and evaporated under reduced pressure to a residue, which was chromatographed to afford N-methyl-N-benzylcyanamide (1.2 g, 82% yield) as oily substance: NMR(CDCl3)δ2.77(s, 3H), 4.14(s, 2H), 7.25-7.50(m, 5H); IR(neat) 220, 1495, 1455, 1365, 730 cm-1. the mixture was stirred extracted with chloroform The extracts were washed with water dried with anhydrous sodium sulfate evaporated under reduced pressure to a residue, which was chromatographed

反应条件: temp:118.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To N-methylbenzylamine (12.1 g, 0.1 mol) was added urea (6.0 g, 0.1 mol). After stirred at 118° C. for 4 h, the mixture was cooled to room temperature. The solidified mixture was ground to a powder, washed with n-hexane and recrystallized with ethyl acetate to afford N-methyl-N-benzylurea (12.3 g, 75% yield): mp 125°-129° C. the mixture was cooled to room temperature washed with n-hexane recrystallized with ethyl acetate

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

实验步骤: To N-methyl-N-benzylurea (1.64 g, 0.01 mol) in chloroform (24 ml) and 50% aqueous sodium hydroxide solution (5.4 ml) was added triethylamine (0.1 g, 0.001 mol) and the mixture was vigorously stirred at room temperature for 3.5 h. After addition of water and chloroform, the mixture was stirred, then extracted with chloroform. The extracts were washed with water, dried with anhydrous sodium sulfate, and evaporated under reduced pressure to a residue, which was chromatographed to afford N-methyl-N-benzylcyanamide (1.2 g, 82% yield) as oily substance: NMR(CDCl3) δ 2.77(s, 3H), 4.14(s, 2H), 7.25-7.50(m, 5H); IR(neat) 2220, 1495, 1455, 1365, 730 cm-1. the mixture was stirred extracted with chloroform The extracts were washed with water dried with anhydrous sodium sulfate evaporated under reduced pressure to a residue, which was chromatographed