反应详情

A solution of 2-ethoxycarbonylimino-3-(3-trifluoromethylphenyl)-5-bromomethylthiazolidine (0.7 g) and potassium t-butoxide (0.25 g) in t-butanol (30 ml) was refluxed for 5 hours. After removal of the solvent under reduced pressure, the concentrated residue was extracted with chlorofom (100 ml), washed with water and dried over anhydrous magnesium sulfate. The solvent was removed under reduced pressure, and the residue was subjected to column chromatography to give 0.36 g of 2-ethoxycarbonylimino-3-(3-trifluoromethylphenyl)-5-methylthiazoline (Compound No. 1).

1. customAfter removal of the solvent under reduced pressure
2. extractionthe concentrated residue was extracted with chlorofom (100 ml)
3. washwashed with water
4. dry with materialdried over anhydrous magnesium sulfate
5. customThe solvent was removed under reduced pressure