反应详情

To a 100 mL flask stirring under nitrogen was charged 2.88 g (0.0098 mole) of 2-(4-chlorophenyl)-2-[(1,2,4-triazol-1-yl)methyl]hexan-1-ol in 25 mL of tetrahydrofuran. To the mixture was added 2.5 mL of pyridine followed by 1.0 g (0.011 mole) of acryloyl chloride after which a precipitate formed. The reaction was monitored by GLC and was 60% complete after I hour. An additional 1.0 g of acryloyl chloride was added followed by 20 mL of dimethylformamide. The reaction was stirred at 60° C. until the precipitate dissolved and was then stirred overnight at room temperature. The reaction was quenched with 20 mL water and extracted with 10 mL ethyl acetate, washed with 2×10 mL water and 2×20 mL saturated sodium bicarbonate. The solvent was dried and concentrated; the residue was chromatographed on 50 g of silica gel. The product was eluted with a 1 to 1 mixture of hexane and ethyl acetate and gave 1.72 g (50.4% yield) of an oil.

1. customformed
2. stirringThe reaction was stirred at 60° C. until the precipitate
3. dissolutiondissolved
4. stirringwas then stirred overnight at room temperature
5. customThe reaction was quenched with 20 mL water
6. extractionextracted with 10 mL ethyl acetate
7. washwashed with 2×10 mL water and 2×20 mL saturated sodium bicarbonate
8. customThe solvent was dried
9. concentrationconcentrated
10. customthe residue was chromatographed on 50 g of silica gel
11. washThe product was eluted with a 1 to 1 mixture of hexane and ethyl acetate