2-en-1-01 methoxy-2,3,4,4a,5,6,7,8-octahydronaphthalen-2-01 methoxyacetate ester, acetate ester, 74563-49-8.Heterogeneous catalytic hydrogenolysis of cyclohexene epoxides on 10% Pd/C was studied in different solvents.The principal products were found to be alcohols, formed by cleavage of one epoxide C-0 bond. In addition, simultaneous cleavage of both C-0 bonds gave hydrocarbons, and isomerization on the catalyst gave ketones as byprodulcts. The deuterolysis of cis-and trans-tert-butylcyclohexene epoxides and kinetic studies with cyclohexene epoxides carrying an axial methyl group in position 3 or 5 showed that hydrogenolysis gives preferentially axial alcohols and trans hydrogen addition, after a "roll over" on the catalyst. If one epoxide carbon carries a methyl group, conformational and steric factors come into play. C-0 bond cleavage a t the more substituted carbon, leading to equatorial alcohols, becomes competitive with preferential formation of axial alcohols, and steric hindrance to molecular reorientation on the catalyst causes cis as well as trans hydrogen addition.Heterogeneous catalytic hydrogenations are often accompanied by some degree of hydrogenolysis, depending on factors like the metal or so1vent.l For example, catalytic hydrogenation of carbonyl derivatives (to alcohols) often leads to, besid'es the alcohols, the formation of hydrocarbons via hydrogenolysis of the alcoholic C-0 bond. Epoxides show the same behavior and are particularly well suited for adsorption studies of the CFO bond. In this case,

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