The methylations of Zcarbomethoxy-and 2-cyano-4-t-butylcyclohexanone gave predominantly axial alkyla-tion products. With 3-carbomethoxy-and 3-oyano-lO-met~ hyl- trans-2-decalones the oppofiite stereochemical result was obtained. While a boat or twist conformation is indicated for the substituted ring product in the former case by nmr and vpc, a chair conformation was found for the nitrile product.
