4-tert-butylcyclohexan-1-ol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture composed of 100 g (0.649 mole) of 4-tert-butyl-cyclohexanone, 1.35 g of the catalyst prepared as indicated in Example 1 and 150 g of cyclohexane were put into an autoclave under nitrogen and then hydrogen was introduced until the pressure settled at about 106Pa. The mixture was then heated to 70° and the reaction was followed by gas chromatography. The reaction was stopped by cooling and the autoclave was flushed with nitrogen. After filtering, the catalyst was recovered under argon flow, washed with cyclohexane and recycled for the following hydrogenation operations. The clear filtrate was evaporated to give a residue that, once distilled, provided 95.15 g of an isomeric mixture containing 87.7% of cis isomer. prepared The mixture was then heated to 70° by cooling the autoclave was flushed with nitrogen After filtering the catalyst was recovered under argon flow washed with cyclohexane and recycled for the following hydrogenation operations The clear filtrate was evaporated to give a residue that once distilled

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture consisting of 50 g (0.33 mole) of 4-tert-butyl-phenol, 1.35 g of the catalyst prepared as described above under example 1A and 100 g of cyclohexane was introduced in an autoclave under nitrogen and then hydrogen was introduced until a stable pressure around 16×105Pa had been established. The reaction mixture was then heated to about 98° and the reaction was followed by gas chromatography. After 135 min, the reaction was interrupted by cooling to around 45° and the autoclave was purged with a nitrogen flow. After filtering, the catalyst was recovered under a flow of argon, washed with cyclohexane and recycled for the following hydrogenation operations. 4-tert-Butyl-cyclohexanol was obtained by distillation of the clear filtrate in 98% yield. The isomeric content was 81.9% of the cis isomer and 15.9% of the trans isomer. prepared was introduced in an autoclave under nitrogen The reaction mixture was then heated to about 98° by cooling to around 45° the autoclave was purged with a nitrogen flow After filtering the catalyst was recovered under a flow of argon washed with cyclohexane and recycled for the following hydrogenation operations