反应详情

4-Propyl-cyclohexanecarboxylic acid 3-bromo-2,2-dimethyl-propyl ester (4.3 g, 13.3 mmol), methacrylic acid (3.4 g, 39.9 mmol) and potassium carbonate (6.9 g, 50.0 mmol) are stirred at 100° C. in dimethyl sulphoxide (100 ml) for 3d. A solid precipitate is removed by filtration and washed with diethyl ether. The filtrate is washed with water, removed, dried and evaporated to dryness. Purification is achieved by flash column chromatography using petrol as eluant to give 22 as a liquid.

1. customA solid precipitate is removed by filtration
2. washwashed with diethyl ether
3. washThe filtrate is washed with water
4. customremoved
5. customdried
6. customevaporated to dryness
7. customPurification