反应详情

温度

90 °C

2.5 g of 7-hydroxy-benzo[1,3]dioxole-5-carboxylic acid, 6.8 g of 1-(2-bromo-ethyl)-3-methyl-benzene and 7.6 g of potassium carbonate were stirred in 100 ml of anhydrous DMF for 10 h at 80° C. Then another 1.4 g of 1-(2-bromo-ethyl)-3-methyl-benzene and 1.5 g of potassium carbonate were added and the mixture was stirred for 5 h at 90° C. The solvent was removed in vacuo and the residue dissolved in 200 ml of water and 200 ml of EA. The organic layer was separated, washed with 100 ml of a saturated aqueous sodium carbonate solution, dried with magnesium sulfate and evaporated to yield 4.5 g of the title compound.

1. customThe solvent was removed in vacuo
2. dissolutionthe residue dissolved in 200 ml of water
3. customThe organic layer was separated
4. washwashed with 100 ml of a saturated aqueous sodium carbonate solution
5. dry with materialdried with magnesium sulfate
6. customevaporated