4-Isopropylphenol → HCID 9948092, compound

Participants

Reaction Steps

Diethyl azodicarboxylate (1.58 mL, 10 mmol) was added to a solution of triphenylphosphine (2.62 g, 10 mmol) in tetrahydrofuran (20 mL) under nitrogen atmosphere. The mixture was stirred for 15 minutes. To it was then added 4-(2-hydroxy-ethyl)-1,3-dihydro-indol-2-one (1.77 g, 10 mmol) followed by 4-isopropylphenol (1.36 g, 10 mmol). The mixture was stirred at room temperature for one day and the solvent was evaporated. The residue was chromatographed on silica gel eluting with ethyl acetate:hexane 2:8 to give 1.1 g (37%) of 4-[2-(4-isopropyl-phenoxy)-ethyl]-1,3-dihydro-indol-2-one as a light yellow solid.

Provenance & Evidence