Hydrogenation
Hydrogenations were performed in an autoclave (volume 160 ml; Parr). A mixture
containing 4-isopropylbenzaldehyde (cca 10 wt%) and forcyclamen aldehyde (FCA,
ca. 90 wt%) was used for the hydrogenation. Autoclave was charged with an
appropriate amount of catalyst (active metal Ru; Table 1), 10 g of a mixture of
4-isopropylbenzadehyde and forcyclamen aldehyde and 90 ml of solvent, isopropylalcohol.
Samples taken during the reaction were centrifuged and analyzed.
Both samples from the aldol reaction and hydrogenation were analyzed using a
Shimadzu GC 17A chromatograph fitted with nonpolar column ZB-5 (60 m,
0.32 mm diameter, 0.25 lm film) and FID. Composition of reaction mixture was
also monitored using GC-MS Shimadzu 2010 fitted with nonpolar column.