• 研究氮烯向前手性单侧非对选择性转移

    Diastereoselective transfer of the diazene hydrogen to one face of the prochiral alkene was studied.

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  • 中离子碳类似杂环碳

    Mesoionic carbenes are similar to N-heterocyclic carbenes.

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  • 效唑处理后籽粒中的DNARNA含量增加,与籽粒蛋白、成熟籽粒蛋白质含量提高表现一致

    After uniconazole treatments, the content of DNA and RNA was increased, protein nitrogen and protein in seeds were consistent with the content of DNA and RNA.

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  • 本文报道了掺杂富勒红外紫外可见光谱

    Nitrogen doped fullerene derivative's IR and UV vis spectra are reported.

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  • 结果表明效唑处理后,籽粒中蛋白非蛋白含量最终蛋白质含量表现一致

    Result indicate that after uniconazole treatments, effects on the protein nitrogen content and the non-protein nitrogen content in seeds were consistent with the protein content in seeds.

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  • 染料甲川链上原子氨基的原子相连,而原子又与染料的甲川链形成胺。

    The meso carbon atom of the methine linkage of the dye is attached to the nitrogen atom of a group which forms an enamine with the methine linkage of the dye .

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  • 目的探讨酮、杜香渗透促进剂对复方骨质增生贴剂透皮渗透影响。

    RESULTS Both Azone and Lepaloine at different concentrations have the role of enhancing permeation.

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  • 双键及一个醛基共轭程度大致相当。

    In the two sides of nitrogen bridge, the degree of conjugation of one double bond with one formyl polyenic group is about equal to two aromatic cycles.

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  • 双键及一个醛基共轭程度大致相当。

    In the two sides of nitrogen bridge, the degree of conjugation of one double bond with one formyl polyenic group is about equal to two aromatic cycles.

    youdao

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