HCID 18963414, compound → HCID 18963412, compound

Participants

Reaction Steps

46.66 g of (Z)-5-benzylidene-4-butyryloxy-3-pyrrolin-2-one (produced according to Example 8) was suspended in 467 ml of toluene and hydrogenated for 28 hours with 4.67 g of palladium/activated carbon (5 percent of Pd) in an autoclave at room temperature and 2 MPa (20 bar). Then the catalyst was filtered off and the filtrate was concentrated by evaporation in a vacuum. The residue was recrystallized from diisopropyl ether. The yield of the title compound was 32.88 percent (69 percent of theory). The title compound had a melting point of 85.6° to 87° C. Other data concerning the title compound was:

Provenance & Evidence