HCID 22047806, compound → HCID 178426979, compound

Participants

Reaction Conditions

Reaction Steps

6′-Methoxy-4,4-dimethyl-4,5-dihydro-3H-[1,3′]bipyridinyl-2,6-dione (2.56 g, 10.3 mmol) was dissolved in a mixture of tetrahydrofuran and diethyl ether. HCl-gas was bubbled into the solution for 5 minutes. More diethyl ether was added and the white precipitate was collected by suction, washed twice with diethyl ether and heated in a kugelrohr apparatus at 190° C. for 15 minutes yielding the title compound (2.16 g, 89% yield) as a white solid.

Provenance & Evidence