Phytol → Dihydrophytol

Participants

Reaction Steps

Phytol (200.45 g) was hydrogenated at room temperature in ethanol (1 lit) with 30% slurry of Raney Nickel (85.7 g), with a stream of hydrogen for 104 hours to get dihydrophytol, 201.87 g (100%). Mass spec: m/z 297 (M−1)+. 1H NMR (CDCl3), δ ppm: 0.83-0.88 (m, 15H), 1.04-1.53 (m, 24H), 1.75 (s), 3.60-3.71 (m 2H). This product is used without further purification in the conversion to the corresponding bromide.

Provenance & Evidence