• 戊烯异构化工艺进行了研究。

    The isomerization process of crude isopentene was studied.

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  • 研究了环合成工艺技术。

    Synthesis of cyclopentanol from cyclopentene was studied.

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  • 最后讨论戊烯脱氢裂解反应过程

    The procedure of dehydrogenation and cracking of dipentene was discussed.

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  • 目的银杏中提取戊烯同系物

    OBJECTIVE:To extract and prepare the polyprenols homologues from Ginkgo biloba leaves.

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  • 岩白菜素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.

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  • 二苯胺苯乙2,4,4-三甲基戊烯反应产物

    N-Phenyl-benzenamine reaction products with styrene and 2,4,4-trimethylpentene.

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  • 目的银杏叶中提取戊烯同系物提取工艺进行优化

    OBJECTIVE To extract the polyprenol homologues from Ginkgo biloba leaves and optimize the separation process.

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  • 分子筛催化裂解以及戊烯异构化两个重要石油化工过程。

    The olefin cracking and the pentene isomerization over zeolites are two very important reactions in the petrochemical industry.

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  • 磷酸催化剂,催化工业戊烯顺丁二酸酐进行异构加成反应。

    In the presence of catalyst phosphoric acid, isomeric addition of bipentene with cis-butenedioic anhydride can form terpenyl bu tenedioic anhydride compound as expoxylite firming agent.

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  • 携带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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  • 得出开发廉价戊烯下游产品可以获得良好经济社会效益结论

    Conclusion that developing downstream products of cheap dipentene can make good economic and social profits is drawn.

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  • 本文介绍选择加氢聚合研究中的相色谱分析方法

    In this paper, the gas chromatographic methods used in the research for selective hydrogenation of cyclopentadiene to produce polymer grade cyclopentene have been described.

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  • 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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  • 发明公开了一种合成食用香料草莓2-甲基-2-戊烯方法。

    The present invention discloses a synthesis process of strawberry acid, or 2-methyl-2-pentenoic acid, as edible perfume.

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  • 甲酯加成物无色透明、具有柠檬香气新型香精

    Additive compound of dipentene and methyl acrylate is a kind of new excellent non-colour transparent essence of white lemon.

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  • 测定了1-戊烯、3-甲基-1-、1-己乙酸异丙酯临界参数

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

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  • 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转化率和异戊烯选择性超过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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  • 本文主要考察研究反应压力空速、反应温度摩尔比对戊烯转化率影响

    This paper mainly studies the effect of pressure, LHSV, temperature and mole ratio of alcohol and alkene on conversion ratio of tertiary amylene.

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  • 溶剂存在下过氧化一步催化氧化戊烯制备二醛过程中的催化体系进行了研究。

    Some catalytic systems for the synthesis of glutaraldehyde by one step catalytic oxidation of cyclopentene and hydrogen peroxide in a non water solvent were studied.

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  • 研究了苯磺酸型树脂催化甲醇化,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.

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  • 综述了戊烯骨架异构化为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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  • 发明属于医药技术领域,更具体而言,涉及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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  • 卤素加成反应制备代环烷,工艺流程简单,原料经济,收率高,易实现工业化

    Preparing cyclopentane halide by the addition reaction of cyclopentene with hydrogen halide is a simplified process with a high yield and can be used in a large scale.

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  • 统计检验结果表明,所建立动力学模型适当近似描述水合制取环醇的反应过程。

    The intrinsic kinetics model was proved to be adequate from the static inspection, which could approximately describe the reaction path of cyclopen…

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  • 发明公开一种品-4-醇的制备方法戊烯原料催化作用 下,水解生成萜品-4-醇。

    The invention discloses a method for preparing 4-terpineol. In the method, bipentene serving as a raw material is dehydrated to from the 4-terpineol in the presence of an acid catalyst.

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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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  • 主要介绍蒎、 双戊烯香茅、 柠檬醛、 香叶醇和橙花醇等萜类化合物加氢催化剂种类及其工艺条件。

    The review focuses on the different catalysts and craft on the hydrogenation of the major terpene: pinene, dipentene, citronellal citral, geraniol etc over catalysts and craft.

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  • 建立了用于甲醇、异原料、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.

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  • 建立了用于甲醇、异原料、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.

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