3,4-bis(Benzyloxy)-6-[2-(3,6-dihydro-2H-pyran-4-yl)ethynyl]pyridazine → HCID 178518835, compound

Participants

Reaction Steps

Prepared in the same way as 4-hydroxy-6-(2-phenylethyl)pyridazin-3(2H)-one (Example 1) from 3,4-bis(benzyloxy)-6-[2-(3,6-dihydro-2H-pyran-4-yl)ethynyl]pyridazine (Intermediate 60) except that the pressure of hydrogen gas was 200 psi at room temperature overnight and the solvent used for the hydrogenation was methanol and the product was purified by column chromatography (silica gel, eluting with 0-5% methanol in dichloromethane to afford the title compound (0.1 g, 16% yield).

Provenance & Evidence