3,5-Dimethyl-1-(carbethoxymethylene)cyclohexane → Ethyl 3,5-dimethyl-cyclohexylacetate
Reaction equation
[CH3:1][CH:2]1[CH2:7][CH:6]([CH3:8])[CH2:5][C:4](=[CH:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])[CH2:3]1>[Ni].CO>[CH3:1][CH:2]1[CH2:7][CH:6]([CH3:8])[CH2:5][CH:4]([CH2:9][C:10]([O:12][CH2:13][CH3:14])=[O:11])[CH2:3]1Participants
4
Reactant 1
Product 1
Reagents, catalysts & solvents 2
Procedure
To a 1 liter autoclave which is fitted with heating means, cooling means and a stirrer are added 54 g of ethyl 3,5-dimethyl-cyclohexylideneacetate, 200 ml of absolute methanol and 3 g of Raney-nickel, which has been washed three times with absolute methanol. The mixture is hydrogenated at 100° C. under a hydrogen pressure of 40 atmospheres. The hydrogen uptake stops after 8 hours. The catalyst is filtered off, the filtrate is concentrated and the residue is distilled. There are obtained 52.3 g of ethyl 3,5-dimethyl-cyclohexylacetate.