7,7-dimethyl-2-[2-(S)-(2-methoxyphenyl)propionyl]-4-perhydroisoindolone → (3aR*,4R*,7aR*)-7,7-dimethyl-4-(2-methoxyphenyl)-2-[2-(S)-(2-methoxyphenyl)propionyl]-4-perhydroisoindolol

Participants

Reaction Steps

By working according to the experimental procedure of Example 9, from 0.78 g of 7,7-dimethyl-2-[2-(S)-(2-methoxyphenyl)propionyl]-4-perhydroisoindolone (mixture of (3aR,7aR) and (3aS,7aS) diastereoisomers) and 1.5 g of 2-methoxyphenylmagnesium bromide, and after purification on a column of silica gel (particle size 0.04-0.06 mm, diameter 2.8 cm, height 21 cm), 0.27 g of (3aR*,4R*,7aR*)-7,7-dimethyl-4-(2-methoxyphenyl)-2-[2-(S)-(2-methoxyphenyl)propionyl]-4-perhydroisoindolol is obtained, in the form of a white foam.

Provenance & Evidence