对粗异戊烯的异构化工艺进行了研究。
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.
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.
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.
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%.
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.
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.
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.
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.
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.
在酸性树脂催化剂上进行了2甲基1丁烯(2MB1)的异构化,得到了高2 甲基2 丁烯含量的异戊烯产品。
The isomerization of 2-methyl 1-butylene(2MB1) to 2- methyl 2-butylene(2MB2) was carried out over a resin catalyst.
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.
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.
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