Synthèse et propriétés des pentaméthyl-2,3,3,5,5 et tétraméthyl-3,3,5,5 N-pipéridinométhyl-2 cyclohexanones et de leurs dérivés

Abstract

The preparation is reported of 2-methylene- and of 2-butylthiomethylene-3,3,5,5-tetramethylcyclohexanone as is their transformation into 2,3,3,5,5-pentamethylcyclohexanone. The synthesis of 2-N-piperidinomethyl-3,3,5,5-tetramethylcyclohexanone is described. The properties of the ketones as well as the stereochemistry of their reduction by complex hydrides was examined. [Journal translation]