• 实验结果表明:本体系中转移效率苄基三乙基化铵大于丁基溴化乙基溴化铵

    The results show that catalytic efficiency of the phase transfer catalyst BETAC is higher than TBAB, and TBAB is nearly as efficient as TEBA.

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  • DMF-四乙基溴化TEAB)质子惰性介质中,马蔺子素连续电子还原生成相应氢阴离子,中间体半醌自由基反应发生

    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.

    youdao

  • 丁基溴化铵四乙基溴化铵效率相当;采用2相转移催剂的催效率大于采用4克催剂的催效率;随高锰酸钾用量增加而增加

    The effects of 2 g PTCs used are better than those of 4 g PTCs, and the yield of azelaic acid is raised as the amount of potassium permanganate increases.

    youdao

  • 丁基溴化铵四乙基溴化铵效率相当;采用2相转移催剂的催效率大于采用4克催剂的催效率;随高锰酸钾用量增加而增加

    The effects of 2 g PTCs used are better than those of 4 g PTCs, and the yield of azelaic acid is raised as the amount of potassium permanganate increases.

    youdao

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