反应详情

A solution of 0.537 g (1.82 mmol) of 3-bromo-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-2-naphthaldehyde, 0.579 g (5.46 mmol) of methyl vinyl sulfone, 0.191 g (0.27 mmol) of tetrakis(triphenylphosphine) palladium and 5.23 g (51.7 mmol) of triethylamine in 12 ml dimethylformamide was heated to 100° C. under argon for 5 hours. The reaction mixture was poured into water and extracted with ethyl acetate. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The crude material was purified by flash chromatography (elution with 25% ethyl acetate/hexane) to afford 0.359 g (62%) of 3-(2-methylsulfonylvinyl)-5,5,8,8-tetramethyl-5,6,7,8-tetrahydro-2-naphthaldehyde (M+1=321).

1. extractionextracted with ethyl acetate
2. washThe organic layer was washed with brine
3. dry with materialdried over anhydrous sodium sulfate
4. concentrationconcentrated in vacuo
5. customThe crude material was purified by flash chromatography (elution with 25% ethyl acetate/hexane)