• 异戊烯构化工艺进行了研究。

    The isomerization process of crude isopentene was studied.

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  • 岩白菜素异戊烯衍生物及其制备方法应用

    The invention relates to a bergenin isopentene group derivative and a preparation method and an application thereof.

    youdao

  • 携带异戊烯基转移酶基因草坪草表现分蘖力加强,严冬绿延长

    Transgenic turfgrass carrying the isopentenyl transferase gene showed enhanced tillering ability and extended green period under severe winter conditions.

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  • 异戊烯甲醇醇类原料三氯催化下一步合成相应酯类

    Using senecioic acid and definite alcohol such as methanol or other alcohols as raw materials in the presence of phosphorus oxychloride as catalyst, corresponding ester can be synthesized by one step.

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  • 该文首次论述了不同碱性条件环上碳代异戊烯方法参考文献24篇。

    In this paper the methods of inducing prenyl into aromatic nucleus under basic condition are discussed for the first time with 24 references.

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  • 催化剂具有良好活性稳定性TAME转化率异戊烯选择性超过99%。

    The catalyst has high catalytic activity and excellent stability, both the conversion rate of TAME and the selectivity of isoamylene can be over 99%.

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  • 研究了苯磺酸型树脂催化异戊甲醇化,考查了温度、醇比和空速对反应的影响

    The etherification of isoamylenes and methanol to form tert all methyl ether (TAME) by benz-sulfonic acid cation exchange resin as catalyst, was studied.

    youdao

  • 发明属于医药技术领域,更具体而言,涉及异戊烯黄酮化合物作为脂肪酶抑制剂用途

    The invention belongs to the technical field of medicaments, and in particular relates to application of isopentene group flavonoid compound used as a pancreatic lipase inhibitor.

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  • 综述了戊烯骨架化为异戊烯工艺反应原理催化剂选择,生产条件及工艺现状作。

    The latest advances in the skeletal isomerization of n-amythene to i-amythene, including the reaction mechanism, the choice of catalysts, etc, were reviewed.

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  • 但是科学家证明了啤酒制造过程中产生了几十主要苦味物质——啤酒花中的所谓异戊烯基多酮类化合物”。

    But scientists have identified several dozens of the key bitter-tasting substances formed during beer manufacturing - so-called 'prenylated polyketides' which are derived from hops.

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  • 建立了用于甲醇原料、正烷为溶剂合成TAME反应产物测定快速GC- FID分析方法

    A method of GC FID is established for the determination of reaction products in synthesizing TAME with methanol and isopentene as raw materials and pentane as solvent.

    youdao

  • 酸性树脂催化剂进行2甲基1(2MB1构化,得到了高2 甲基2 丁含量的异戊烯产品。

    The isomerization of 2-methyl 1-butylene(2MB1) to 2- methyl 2-butylene(2MB2) was carried out over a resin catalyst.

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  • 测定了1-戊烯、3-甲基-1-、1-己乙酸丙酯临界参数

    The critical parameters of 1-pentene, 3-methyl-1-butene, 1-hexene and isopropyl acetate were determined.

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  • 测定了1-戊烯、3-甲基-1-、1-己乙酸丙酯临界参数

    The critical parameters of 1-pentene, 3-methyl-1-butene, 1-hexene and isopropyl acetate were determined.

    youdao

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