Sodium Carbonate → HCID 86755061, compound

Participants

Reaction Steps

A solution of 0.41 g (2.99 mmol) of 4-methylphenylboronic acid in 13 cm3 of methanol and 30 cm3 of a 2N aqueous sodium carbonate solution were successively added to a solution of 1.37 g (2.7 mmol) of methyl (3aRS,4SR,7aRS)-2-benzyl-7-iodo-4-(2-methoxyphenyl)-2,3,3a,4,5,7a-hexahydro-1H-isoindole-3a-carboxylate and of 0.15 g (0.13 mmol) of tetrakis(triphenylphosphine)palladium in 30 cm3 of toluene and then the mixture was brought to reflux for two hours. After returning to a temperature in the region of 20° C., the reaction mixture was extracted with 100 cm3 of ethyl acetate, washed with two times 50 cm3 of distilled water, dried over magnesium sulphate and then concentrated under reduced pressure. The brown residue obtained was purified by flash chromatography on silica gel (230-400 mesh), elution being carried out with a cyclohexane/ethyl acetate (95/05 by volume) mixture. 1.2 g (93%) of methyl (3aRS,4SR,7aRS)-2-benzyl-4-(2-methoxyphenyl)-7-(4-methylphenyl)-2,3,3a,4,5,7a-hexahydro-1H-isoindole-3a-carboxylate were thus obtained in the form of a yellow oil, the characteristics of which were as follows:

Provenance & Evidence