Phosphorus oxychloride → HCID 18415924, compound

Participants

Reaction Steps

The N-oxide product from Example 14 (150 mg) was dissolved in phosphorus oxychloride (6 ml). The mixture was boiled under reflux for 4 hours. Excess phosphorus oxychloride was removed under reduced pressure and the residue was washed with saturated sodium carbonate solution and the product was extracted into chloroform, washed, dried and evaporated to give 3-(2-chloro-4-pyridyl)-4,5-dihydro-1H-benzo[g]indazole.

Provenance & Evidence