• 本文研究了3-氰基吡啶微生物转化产物高效液相色谱(RP-HPLC)分析方法

    The conditions for the analysis of transformed products of 3-cyanopyridine via microorganism by RP-HPLC with flow rate gradient of mobile phase have been studied.

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  • 以4甲基吡啶为原料,固定反应器通过氧化催化剂发生气固相接触氨氧化反应制备雷米封中间体4氰基吡啶,4甲基吡啶转化率为99%,4氰基吡啶的选择性为88%,收率为87。

    4-cyanopyridine, intermediate of rimifon, was synthesized from 4-picoline using vanadium oxide as a catalyst in a fixed-bed reactor, reached 99% conversion of 4-picoline, 88% selectivity and 87.

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  • 研究烷基吡啶基聚苯乙烯树脂(BPR)氰化液中吸附各种金属离子。

    The adsorption of many metal cyanides from alkali cyanide solutions using BPR resin was investigated.

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  • 研究一种直接环合方法,用2-氯-2氯甲基- 4-氰基丁醛三氯反应来制备2-氯-5-氯甲基吡啶

    A synthetic method of direct cyclization was researched that 2-chloro-2-chloromethyl-4-cyanobutyraldehyde was reacted with phosphorus oxychloride to get 2-chloro-5-chloromethylpyridine.

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  • 本文用2-氯-5-氯甲基吡啶氨基化,N-氰基乙亚胺乙酯反应最后甲基化得到吡虫清。

    In this thesis, 2-chloro-5-chloromethyl pyridine is ammoniated, which followed by the reaction with N-cyano ethyl ethylimidoate, finally is methylated to gain the objective product.

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  • 本文用2-氯-5-氯甲基吡啶氨基化,N-氰基乙亚胺乙酯反应最后甲基化得到吡虫清。

    In this thesis, 2-chloro-5-chloromethyl pyridine is ammoniated, which followed by the reaction with N-cyano ethyl ethylimidoate, finally is methylated to gain the objective product.

    youdao

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