Ethanol → HCID 20379124, compound

Participants

Reaction Steps

A mixture of the 4-(3-methylpent-3-yl)phenol (365 g, 2.05 mol), ethanol (600 g), acetic acid (5.0 g) and 5% rhodium on carbon (8.0 g) was hydrogenated at 100 psi and 60° C. until the hydrogen absorption essentially ceased. The reaction mixture was filtered to remove the catalyst and the solvent was removed on a rotary evaporator. The resulting oil was washed with 10% sodium bicarbonate (200 ml) and then with water (200 ml portions) until a neutral pH (7) was indicated. Distillation of the crude oil under vacuum gave the desired 4-(3-methylpent-3-yl)cyclohexanol: 350 g, 93% yield; bp 110°-115° C. (2.0 mm); mol wt 184 (ms); nmr, 0.4-0.9 (9H, methyls), 1.0-1.5 (14H, m, CH2), 2.39 (1H, s, hydroxyl), 4.0 (1H, m, Hα to oxygen); ir, 3350, 2980, 2950, 2890, 1455, 1385, 1075, 1046, 960 cm-1.

Provenance & Evidence