反应详情

1-Hydroxy-1-ethynyl-3,3,5-trimethyl-cyclohexane used as starting material for the following preparation was prepared in accordance with W. Ziegenstein, "Aethinylierung und Alkinylierung", p. 9, Verlag Chemie (1963). The conversion into 1-(3,3,5-trimethyl-cyclohex-1-en-1-yl)-pent-4-en-1-one was performed according to the procedure described in pathway I, paragraph (d). The analytical data were as follows:

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