对粗异戊烯的异构化工艺进行了研究。
研究了环戊烯合成环戊醇的工艺技术。
最后讨论了双戊烯脱氢和裂解反应过程。
The procedure of dehydrogenation and cracking of dipentene was discussed.
目的:从银杏叶中提取聚戊烯醇同系物。
OBJECTIVE:To extract and prepare the polyprenols homologues from Ginkgo biloba leaves.
一种岩白菜素异戊烯基衍生物及其制备方法和应用。
The invention relates to a bergenin isopentene group derivative and a preparation method and an application thereof.
二苯胺与苯乙烯和2,4,4-三甲基戊烯的反应产物。
N-Phenyl-benzenamine reaction products with styrene and 2,4,4-trimethylpentene.
目的从银杏叶中提取聚戊烯醇同系物并对其提取工艺进行优化。
OBJECTIVE To extract the polyprenol homologues from Ginkgo biloba leaves and optimize the separation process.
分子筛催化的烯烃裂解以及戊烯异构化是两个重要的石油化工过程。
The olefin cracking and the pentene isomerization over zeolites are two very important reactions in the petrochemical industry.
用磷酸做催化剂,催化工业双戊烯与顺丁烯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.
携带异戊烯基转移酶基因的草坪草表现出分蘖力加强,严冬绿期延长;
Transgenic turfgrass carrying the isopentenyl transferase gene showed enhanced tillering ability and extended green period under severe winter conditions.
得出开发廉价的双戊烯的下游产品可以获得良好的经济、社会效益的结论。
Conclusion that developing downstream products of cheap dipentene can make good economic and social profits is drawn.
本文介绍了环戊二烯选择加氢制聚合级环戊烯研究中的气相色谱分析方法。
In this paper, the gas chromatographic methods used in the research for selective hydrogenation of cyclopentadiene to produce polymer grade cyclopentene have been described.
以异戊烯酸和甲醇等醇类为原料,在三氯氧磷催化下一步合成相应的酯类。
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.
本发明公开了一种合成食用香料草莓酸,即2-甲基-2-戊烯酸的方法。
The present invention discloses a synthesis process of strawberry acid, or 2-methyl-2-pentenoic acid, as edible perfume.
双戊烯与丙烯酸甲酯的加成物是一种无色透明、具有白柠檬香气的新型香精。
Additive compound of dipentene and methyl acrylate is a kind of new excellent non-colour transparent essence of white lemon.
测定了1-戊烯、3-甲基-1-丁烯、1-己烯和乙酸异丙酯的临界参数。
The critical parameters of 1-pentene, 3-methyl-1-butene, 1-hexene and isopropyl acetate were determined.
该文首次论述了在不同的碱性条件下芳环上碳代异戊烯基的方法。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.
该催化剂具有良好的活性和稳定性,TAME转化率和异戊烯的选择性均超过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%.
本文主要考察和研究了反应压力、空速、反应温度、醇烯摩尔比对叔戊烯转化率的影响。
This paper mainly studies the effect of pressure, LHSV, temperature and mole ratio of alcohol and alkene on conversion ratio of tertiary amylene.
对在非水溶剂存在下过氧化氢一步催化氧化环戊烯制备戊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.
研究了苯磺酸型树脂催化的异戊烯和甲醇的醚化,考查了温度、醇烯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.
综述了正戊烯骨架异构化为异戊烯工艺的反应原理,催化剂的选择,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.
本发明属于医药技术领域,更具体而言,涉及异戊烯基黄酮化合物作为胰脂肪酶抑制剂的用途。
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.
环戊烯与氢卤素加成反应制备卤代环戊烷,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.
统计检验结果表明,所建立的动力学模型是适当的,可近似描述环戊烯水合制取环戊醇的反应过程。
The intrinsic kinetics model was proved to be adequate from the static inspection, which could approximately describe the reaction path of cyclopen…
本发明公开一种萜品-4-醇的制备方法,以双戊烯为原料,在酸的催化作用 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.
但是科学家证明了啤酒制造过程中产生了几十种主要的苦味物质——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.
主要介绍蒎烯、 双戊烯、香茅醛、 柠檬醛、 香叶醇和橙花醇等萜类化合物的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.
建立了一种用于以甲醇、异戊烯为原料、正戊烷为溶剂合成TAME反应产物测定的快速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.
建立了一种用于以甲醇、异戊烯为原料、正戊烷为溶剂合成TAME反应产物测定的快速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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