2-Methyl-3-phenyl-1-propanol → 3-Cyclohexyl-2-methylpropan-1-ol

2-Methyl-3-phenylpropanol (219 g., 1.46 mol.) and 10.30 g. of 50% Ni on silica catalyst (4.7 wt %, G-49-C, United Catalyst) were stirred at 700 rpm in a Parr reactor at 150° C. and 200-600 psi of hydrogen until hydrogen absorption stopped (12 hours). Utilizing 2 wt. % of the catalyst requires that the reaction be run at 180° C. The reaction mixture was filtered through a filter bed (Celite™) using toluene as a rinse solvent and concentrated to a clear, colorless liquid. The odor grade product was isolated by fractional distillation, 174 g., 80% yield; bp 80° C. at 4 mm. Odor: very pleasant green, fruity, rosy. Mass Spectrum from 5508-36. MS (El) m/z (relative intensity) 138 (M+−H2O, 15), 123 (M+−Me and H2O, 15).

1. custom200-600 psi of hydrogen until hydrogen absorption
2. custom(12 hours)
3. custombe run at 180° C
4. filtrationThe reaction mixture was filtered through a filter bed (Celite™)
5. concentrationconcentrated to a clear, colorless liquid
6. customThe odor grade product was isolated by fractional distillation, 174 g

ORD-Eintrag

ord-d26212e3fd26489c9ec90030009ce022

Quelldatensatz

uspto-grants-2001_02

DOI

10.6084/m9.figshare.5104873.v1

Patentnummer

US06187727B1