反应详情

(6-Benzenesulfonyl-3,4-dihydro-2H-naphthalen-1-ylidene)-acetic acid methyl ester (5.63 g, 15.8 mmol) was dissolved in 300 mL EtOAc in a 1 L Parr vessel, and 1.0 g of palladium/activated carbon was added. The reaction mixture was shaken for 8 hours under 50 psi of hydrogen, after which the mixture was filtered through a CELITE™ plug. The filtrate was evaporated under reduced pressure to give an oil, which was dissolved in hexanes:EtOAc (3:2) and eluted through silica gel to afford 5.22 g (14.56 mmol, 92.2%) of (6-benzenesulfonyl-1,2,3,4-tetrahydro-naphthalen-1-yl)-acetic acid methyl ester. MS: 359 (M+H)+.

1. additionwas added
2. filtrationafter which the mixture was filtered through a CELITE™ plug
3. customThe filtrate was evaporated under reduced pressure
4. customto give an oil, which
5. washeluted through silica gel