反应详情

13.9 g. (0.1 mole) of N-methyl-N-[1-methyl-2-(2-furyl)-ethyl] amine are dissolved in 80 ml. of dioxane, whereupon 6 g. of paraformaldehyde and 1 g. of cuprous chloride are added and gaseous acetylene is introduced into the solution at 80° C. under stirring for 30 hours. The reaction mixture is filtered and the filtrate is evaporated. The residue is dissolved in benzene, the benzene solution is washed with water, dried over potassium carbonate and evaporated. The residue is distilled off in vacuo. Thus 6.8 g. of N-methyl-N-[1-methyl-2-(2-furyl)-ethyl]-propynyl amine are obtained. Bp.: 114°-116° C./20 Hgmm; nD20 =1.4910.

1. filtrationThe reaction mixture is filtered
2. customthe filtrate is evaporated
3. dissolutionThe residue is dissolved in benzene
4. washthe benzene solution is washed with water
5. dry with materialdried over potassium carbonate
6. customevaporated
7. distillationThe residue is distilled off in vacuo