Regiospecific Acylation, Alkylation, and Aldol Condensation using magnesium enolates resulting from the conjugate addition of<i>grignard</i>reagents to α, β-unsaturated ketones
作者:Ferdinand Näf、René Decorzant
DOI:10.1002/hlca.19740570508
日期:1974.7.17
The magnesium 3,3-dimethylcyclohex-1-enolate 1i, formed in the copper catalyzed addition of methylmagnesium iodide to 3-methylcyclohex-2-enone, has been subjected to regiospecific electrophilic reactions such as acylation, alkylation, and aldol condensation in order to find a new access to the damascones, ionones and carotenoids. By way of illustration a new synthesis of γ-damascone is described.
3,3-二甲基环己-1-烯酸镁1i形成于铜催化的甲基碘化镁向3-甲基环己-2-烯酮的加成反应中,已进行了区域特异性的亲电反应,例如酰化,烷基化和羟醛缩合,从而找到新的对大马士革,紫罗兰酮和类胡萝卜素的访问。通过说明的方式,描述了γ-金刚烷酮的新合成。