反应详情

4-Amino-2-hydroxy-cyclohexanecarboxylic acid methyl ester acetic acid salt (6.6 g) was heated to reflux in mesitylene (60 ml) for 3 h. After cooling to rt, solvent was decanted and the crystals were washed with hexane three times to provide 2.9 g of 5-hydroxy-2-aza-bicyclo[2.2.2]octan-3-one (M+: 141).

1. customsolvent was decanted
2. washthe crystals were washed with hexane three times