Methanol → HCID 178481921, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 1,2,4-triazolo[4,3-f]phenanthridine (A. G. Mikhailovskii, V. S. Shklyaev, Chem. Heterocycl. Comp. 1992, 445) (5.9 g, 27 mmol) in dichloromethane (200 ml) and methanol (20 ml) is admixed under argon at 2° C. with trimethyloxonium tetrafluoroborate (4.3 g, 29 mmol) and stirred at 2° C. for 1 h and at room temperature for 16 h. The resulting precipitate is filtered off and washed with dichloromethane, methanol and petroleum ether. Yield: 5.9 g (69%).

Provenance & Evidence