Zur Stereoisomerie der beiden 1,1‐Dimethyl‐cyclohexanol‐(3)‐carbonsäuren‐(2)

It has been shown by different methods that of the two 1,1‐dimethyl‐cyclohexan‐3‐ol‐2‐carboxylic acids described in two previous papers the acid m.p. 161° represents the trans and the other one, m.p. 118°, the cis form. The approximate proportions of these compounds obtained by catalytic reduction of the corresponding ketoester either in acid or in neutral solution are also mentioned. The hydroxy acids prepared in this way are accompanied by small amounts of their dehydration product, β‐cyclo‐apogeranic acid.