反应详情

Trinbutyltin hydride (0.36 mL, 1.34 mmol) was added slowly by syringe pump to a room temperature mixture of Example 14A (0.2 g, 0.78 mmol) and Pd(PPh3)4 (27 mg, 0.023 mmol), stirred overnight, diluted with water, and extracted three times with ethyl acetate. The combined extracts were washed with brine, dried (Na2SO4), filtered, and concentrated. The concentrate was putrified by flash column chromatography on silica gel with 80% ethyl acetate/hexanes to provide 227 mg (100%) of the desired product. MS(ESI(−)) m/e 255 (M−H)−.

1. extractionextracted three times with ethyl acetate
2. washThe combined extracts were washed with brine
3. dry with materialdried (Na2SO4)
4. filtrationfiltered
5. concentrationconcentrated