A novel method for the preparation of isoeugenol, [ring-(U)-14C] is presented. Phenols and phenyl esters substituted in the para position with 1-hydroxyethyl or 1-hydroxypropyl acetate esters when treated with 1,8-diazabicyclo[5.4.0]undec-7-ene in dimethylformamide (DMF) eliminate the alkyl carboxylate function to give the unsaturated compound. The reaction fails with unsubstituted or ether substituted phenyl 1-hydroxyacetate esters.
本文介绍了一种制备
异丁香酚[环-(U)-14C]的新方法。在二甲基甲酰胺(
DMF)中,用
1,8-二氮杂双环[5.4.0]十一-7-烯处理 1- 羟乙基或 1- 羟
丙基乙酸酯取代对位的
苯酚和苯酯时,会消除烷基
羧酸酯的功能,从而得到不饱和化合物。未取代或醚取代的 1-羟基
乙酸苯酯反应失败。