The present paper discloses a decarboxylation reaction of several conjugated unsaturated ketones and nitriles with carboxylic acids such as acetoacetic acid, malonic acid and cyanoacetic acid. In the reaction these carboxylic acids are decarboxylated and introduced at β-carbon of the conjugated unsaturated compounds. Thus there have been provided a effective means of introducing acetonyl, carboxymethyl and cyanomethyl at that position.
本文揭示了几种共轭不饱和酮和腈与
羧酸(如
乙酰乙酸、
丙二酸和
氰基
乙酸)的脱羧反应。在该反应中,这些
羧酸被脱羧,并引入到共轭不饱和化合物的β碳位置。因此,提供了一种有效的方式在该位置引入乙酰基、羧甲基和
氰甲基。