反应详情

Methyl thioglycolate (2.65 g, 0.025 moles) was added by syringe to a solution of trans-2-[[3,5-bis(1,1-dimethylethyl)phenyl]thio]cyclohexanol (5.0 g., 0,025 moles) in methylene chloride (10 ml). After stirring the reaction mixture for 15 minutes, trifluoroacetic acid (10 ml) was added by syringe, and the reaction mixture was stirred for 20 hours at room temperature. The reaction mixture was poured into cold water (100 ml). After stirring for 30 minutes, the mixture was extracted with ethyl acetate. The aqueous layer was washed with ethyl acetate (50 ml). The combined ethyl acetate extracts were washed twice with 75 ml of water, dried over sodium sulfate, filtered and concentrated to give the crude product as an oil. The title compound was purified by silica gel chromatography and dried in a vacuum oven at 60° C. for 3 hours. The structure assignment was supported by NMR, infrared spectroscopy, and elemental analysis.

1. stirringthe reaction mixture was stirred for 20 hours at room temperature
2. stirringAfter stirring for 30 minutes
3. extractionthe mixture was extracted with ethyl acetate
4. washThe aqueous layer was washed with ethyl acetate (50 ml)
5. washThe combined ethyl acetate extracts were washed twice with 75 ml of water
6. dry with materialdried over sodium sulfate
7. filtrationfiltered
8. concentrationconcentrated