• 应用纳米相中成功地促进多种化合物和巴豆溴的丁烯基化反应,在时间内得到了高产率的高烯丙

    Indium, tin and bismuth nanoparticles successfully mediated crotylation of carbonyl compounds in water to afford the corresponding homoallylic alcohols with good to excellent yields in a short time.

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  • 丁烯二酰亚胺氮氧自由自旋标记血清白蛋白,由于标记位点和标记物所处的周围环境不同,给出ESR波谱固定化作用型和固定化作用型。

    When the nitroxide-maleimide was used to spin label bovine and sheep's serum albumin, two kinds of ESR spectra, i. e. "strongly immobilized" and "weakly immobilized", were obtained.

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  • 分别建立核磁测定聚异丁烯活性含量以及其他烯键含量红外光谱快速测定聚异丁烯活性端含量、其他烯键含量和相对分子质量分析方法

    The methods of determining high active end group content and molecular weight of polyisobutene have been established by nuclear magnetic resonance and near infrared spectra respectively.

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  • 考察了丁烯、氟化镧、三聚氰胺氰尿酸复合物(MCA)、硫代氨甲酸盐对-钙性能影响

    The effects of polyisobutene , LaF3, MCA, dialkyldithioaminoformaite on properties of lithium-calcium base grease have been discussed in this paper.

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  • 考察了丁烯、氟化镧、三聚氰胺氰尿酸复合物(MCA)、硫代氨甲酸盐对-钙性能影响

    The effects of polyisobutene , LaF3, MCA, dialkyldithioaminoformaite on properties of lithium-calcium base grease have been discussed in this paper.

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