HCID 86740934, compound → HCID 86740933, compound

Participants

Reaction Steps

A solution of 1.5 g of a mixture of cis and trans-9-methoxy-10b-methyl-4-propyl-3,4a,5,10b-tetrahydro-4H-[1]-benzopyrano[3,4-b]pyridine (example 3b) in 30 ml of ethanol is hydrogenated at 3 atmospheres pressure in the presence of 500 mg of 10% palladium on charcoal catalyst for 3 hours to give cis and trans-9-methoxy-10b-methyl-4-propyl-1,2,3,4a,5,10b-hexahydro-4H-[1]-benzopyrano[3,4-b]pyridine as a mixture of isomers.

Provenance & Evidence