Triphenylphosphine → 4-[2-[2-(3-chloropropoxy)-phenyl]-ethenyl]-1H-indol

Participants

Reaction Steps

Under an inert atmosphere, 235 mg of 2-[(1H-indol-4-yl)-ethenyl]-phenol in 20 ml of tetrahydrofuran with 0.15 ml of diethyl azodicarboxylate, 0.1 ml of 3-chloro-1-propanol, and 262 mg of triphenylphospine were stirred for 5 hours. Then 0.1 ml of 3-chloro-1-propanol, 0.15 ml of diethyl azodicarboxylate and 262 mg of triphenyl phospine were added, and after 15 hours of stirring at ambient temperature, the mixture was concentrated to dryness. The residue was purified by chromatography on silica (eluent: benzene) to obtain 310 mg of 4-[2-[2-(3-chloropropoxy)-phenyl]-ethenyl]-1H-indol.

Provenance & Evidence