2-Cyclohexenone, 5,5-dimethyl- → Cyclohexanone, 3,3-dimethyl-

Beteiligte Stoffe

Reaktionsschritte

(a') A catalytic hydrogenation of 3,3-dimethyl-cyclohex-5-en-1-one was carried out according to the usual techniques in the presence of palladium on charcoal and yielded 3,3-dimethylcyclohexanone. The subsequent ethylination by means of acetylene in a basic medium gave 1-ethynyl-1-hydroxy-3,3-dimethyl-cyclohexane in about 50% yield.

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