在DMF-四乙基溴化铵( TEAB)质子惰性介质中,马蔺子素连续两步单电子还原生成相应氢醌阴离子,无中间体半醌自由基的化学反应发生。
In DMF tetraethyl ammonium bromide(TEAB) media, the reduction of irisquinone was two successive single electron processes without the chemical reaction of the free radical semiquinone.
通过添加适量四丁基溴化铵为相转移催化剂,使用过量的亚磷酸二异丙酯以补偿其在强碱环境中的水解,从而提高了反应产率。
The yield was increased through adding tetrabutyl ammonium bromide as the phase transfer catalyst, and using excessive diisopropyl phosphite to compensate its hydrolyzation.
样品的四丁基溴化铵和二氯甲烷离子对萃取方法与反相离子对色谱分离联用,为水体中芳香族磺酸盐的检测提供了可靠的监测手段。
The combination of ion-pair extraction technology with reversed-phase ion-pair chromatography method provide a effective inspection measure for the sulfonates in water.
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