反应详情

A mixture of N-(4-chloro-2-butynyl)-2-cyclohexyl-2-hydroxy-2-phenylacetamide (0.5 g), sodium iodide (0.1 g), and 50% aqueous dimethylamine (1.5 ml) in 1,4-dioxane (5 ml) was stirred at room temperature overnight. After removal of the solvent, saturated sodium bicarbonate aqueous solution and ethyl acetate were added to the residue. The organic layer was separated, washed with sodium chloride aqueous solution, dried over magnesium sulfate, and evaporated in vacuo. The residue was purified by column chromatography on silica gel with a mixture of chloroform =nd methanol (20:1) as an eluent to give N-(4-dimethylamino-2-butynyl)-2-cyclohexyl -2-hydroxy-2-phenylacetamide (0.49 g) as oil.

1. customAfter removal of the solvent, saturated sodium bicarbonate aqueous solution and ethyl acetate
2. additionwere added to the residue
3. customThe organic layer was separated
4. washwashed with sodium chloride aqueous solution
5. dry with materialdried over magnesium sulfate
6. customevaporated in vacuo
7. customThe residue was purified by column chromatography on silica gel with a mixture of chloroform =nd methanol (20:1) as an eluent