Nucleophilic Benzoylation Using a Mandelic Acid Dioxolanone as a Synthetic Equivalent of the Benzoyl Carbanion. Oxidative Decarboxylation of α-Hydroxyacids
作者:Gonzalo Blay、Isabel Fernández、Belén Monje、José Pedro
DOI:10.3390/90500365
日期:——
The synthesis of alkyl aryl ketones using a mandelic acid dioxolanone as a synthetic equivalent (Umpolung) of the benzoyl carbanion is reported. The methodology involves alkylation of the mandelic acid dioxolanone, hydrolysis of the dioxolanone moiety in the alkylated products and oxidative decarboxylation of the resulting alpha-hydroxyacids. The last step is carried out in a catalytic aerobic way
报道了使用扁桃酸二氧戊环酮作为苯甲酰基碳负离子的合成等价物 (Umpolung) 合成烷基芳基酮。该方法涉及扁桃酸二氧戊环酮的烷基化、烷基化产物中二氧戊环酮部分的水解和所得α-羟基酸的氧化脱羧。最后一步是在非常温和的条件下,在新戊醛存在下,使用 Co (III) 配合物以催化有氧方式进行的。