Benzene → HCID 54082787, compound

Participants

Reaction Steps

2 g. of pure 4,8-dimethyl-10-(4-oxo-2,6,6-trimethyl-2-cyclohexenylidene)-2,4,8-decatrien-6-ynal in 50 ml. of benzene was hydrogenated in the presence of 0.5 g. of Lindlar catalyst and 0.5 ml. of a 1% solution of quinoline in acetone. After consumption of 240 ml. of hydrogen, which took place within 21/2 hours, the suspension was filtered and concentrated. The residue crystallized only partially after chromatography on 200 g. of silica gel G with benzene ethyl ether in a volume ratio of 3:2.

Provenance & Evidence