反应详情

温度

20 °C

To a solution of 2.8 g of (3aRS,7RS,7aSR)-7-hydroxy-7-(2-methoxyphenyl)-4-perhydroisoindolone and 1.3 cm3 of triethylamine in 60 cm3 of anhydrous dichloromethane are added 1.55 g of (2-methoxyphenyl)acetic acid, 0.03 g of hydroxybenzotriazole hydrate and 1.96 g of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride. After stirring for 20 hours at 20° C., the reaction mixture is washed with 100 cm3 of water, dried over magnesium sulphate and then concentrated to dryness under reduced pressure (2.7 kPa). The residue obtained is recrystallized in ethyl ether and the crystals are drained and then dried under reduced pressure (2.7 kPa). 3.1 g of (3aRS,7RS,7aSR)-7-hydroxy-7-(2-methoxyphenyl)-2-[(2-methoxyphenyl)acetyl]-4-perhydroisoindolone are obtained, in the form of a white solid melting at 184° C.

1. washthe reaction mixture is washed with 100 cm3 of water
2. dry with materialdried over magnesium sulphate
3. concentrationconcentrated to dryness under reduced pressure (2.7 kPa)
4. customThe residue obtained
5. customis recrystallized in ethyl ether
6. customdried under reduced pressure (2.7 kPa)