HCID 11153426, compound → HCID 19842259, compound

Participants

Reaction Steps

2-(4-Methoxyphenyl)-3-hydroxy-4,5,6,7-tetrahydroisoindolin-1-one (2.59 g) and piperidinocarbonylmethylenetriphenylphosphorane (4.6 g) were dissolved in 50 ml of dry toluene and the solution was refluxed gently for 20 hours. After cooling, the solvent was distilled off and the residue was purified by silica gel column chromatography. Fractions eluted with dichloromethaneethyl acetate (5:1) were collected and concentrated to give crude crystals. This product was recrystallized from ether-hexane (1:3) to give 1.87 g of 2-(4-methoxyphenyl)-3-piperidinocarbonylmethyl-4,5,6,7-tetrahydroisoindolin-1-one.

Provenance & Evidence