反应详情

To a stirred solution of epoxide 30 (37 g, 0.120 mol) in a mixture of dimethylformamide (140 ml) and acetonitrile (200 ml) was added methyl-2-mercaptobenzoate (20.0 g, 0.145 mol), followed by addition of anhydrous potassium carbonate (19.8 g, 0.145 mol). The reaction mixture was stirred overnight, filtered and concentrated. The resulting mixture was poured into water (2.0 L), stirred and extracted with ethylacetate (1.0 L). The organic layer was washed with water (500 ml) and brine (500 ml), dried over anhydrous sodium sulphate, evaporated and subjected to FC (EtOAc/hexanes) to afford product as a pale yellow solid 46 (18.0 g, 31% yield).

1. filtrationfiltered
2. concentrationconcentrated
3. additionThe resulting mixture was poured into water (2.0 L)
4. stirringstirred
5. extractionextracted with ethylacetate (1.0 L)
6. washThe organic layer was washed with water (500 ml) and brine (500 ml)
7. dry with materialdried over anhydrous sodium sulphate
8. customevaporated