isolongifolene

A new process for preparing isolongifolene isomerized directly from heavy turpentine oil was studied.

探讨了以重质松节油为原料进行直接异构化制备异长叶烯的新工艺,选出了较为理想的GOn4-/TiO2(A)固体超强酸催化剂,确定了较好的反应条件为:催化剂用量为原料质量的1%～2%、异构化反应温度190～200℃,反应时间4h,异长叶烯得率达到90%以上,为工业化生产异长叶烯探索了一条"绿色"新工艺途径。

From analyses of GC and GC-MS, the main product is isolongifolene from isomerization.

研究了SO42-/TiO2-ZrO2型固体超强酸催化剂的制备及其催化长叶烯的异构反应,通过GC、GC-MS和标样分析,确定其主产物为异长叶烯。

Through the study on the preparation of isolongifolene with longifolene by isolate, a new method was found for the isolation using a multiple catalyst.

通过对长叶烯异构化制备异长叶烯方法的研究，找到了利用复合催化剂进行异构化反应的新方

An important perfume isolongifolenone was synthesized by the catalytic oxidation of isolongifolene,using oxygen-enriched air as the oxidant agent.

以富氧空气为氧化剂,催化氧化异长叶烯合成香料异长叶烯酮,系统考察了富氧空气中氧的体积分数、气体通量及反应温度等因素对反应转化率和收率的影响,确定了反应最佳条件:富氧空气中φ(O2)=33。

Study on Preparing Isolongifolene from Longifolene Catalyzed by Solid Superacid;

固体超强酸催化长叶烯制备异长叶烯的研究

Calculation for saturated vapor pressure of longifolene;

长叶烯饱和蒸汽压的估算

Vapor-liquid equilibrium for systems of pinane-αpinene-longifolene at atmospheric pressure;

蒎烷-α-蒎烯-长叶烯体系常压汽液平衡

Synthesis of Isolongifolene from Heavy Turpentine Oil Catalyzed by Compound Catalysts

复合催化剂催化重质松节油合成异长叶烯反应的研究

Study on Vapour-Liquid Equilibrium for Pinane-α-Pinene-Longifolene System;

蒎烷—α-蒎烯—长叶烯体系汽液平衡的研究

Moreover, those impurities, as menthone, isomenthone, limonene, 1, 8-cineol and bata-pinene contents of Hai-Xuan mint are lower than that of 73-8mint.

原油中薄荷酮、异薄荷酮、柠檬烯、1,8-桉叶素、β-蒎烯等均低于“73～8”。

Effects of Soaking Seeds,Spraying on Soil and Leaves with Uniconazole on Growth of Tall Fescue

烯效唑浸种、淋土和喷叶对高羊茅生长的影响

FT-IR Spectrometric Determination of Styrene Monomer in Copolymer of Styrene and Methylmethacrylate

傅里叶变换红外光谱法测定苯乙烯-异丁烯酸甲酯共聚物中苯乙烯单元含量

Effect of Red Clover Isoflavones on Growth Performance in Broilers

红三叶异黄酮对肉鸡生长性能的影响

isobutylene-isoprene copolymer

异丁烯－异戊二烯共聚物

A New C_(13)-Norisoprenoid from Leaves of Alstonia scholaris

灯台树叶中一个新的 C_(13) -降异戊二烯衍生物(英文)

Expression of Two Key Enzyme Genes in the Biosynthetic Pathway of Ethylene in Sugarcane Leaves;

甘蔗生长前期乙烯合成途径中两个关键酶基因在叶片中的表达

MAA (methacrylic acid)

甲基丙烯酸,异丁烯酸

NIR (acrylonitrile-isoprene rubber)

丙烯腈-异戊二烯橡胶

nitrile-isoprene latex

丙烯腈-异戊二烯胶乳

butadiene isoprene copolymer

丁二烯-异戊二烯共聚物

styrene-isoprene rubber latex

苯乙烯-异戊二烯胶乳

isoprene styrene latex

异戊二烯-苯乙烯胶乳

Molecular Mechanism of Different Rooting Capacity between Two Clones of Larix Leptolepis×Larix Olgensis;

日本落叶松×长白落叶松无性系间生根差异的分子机制

A STUDY ON THE GEOGRAPHIC VARIATION AND SELECTION OF THE BEST PROVENANCE OF LARIX OLGENSIS

长白落叶松地理变异与优良种源选择的研究

Variation of Leaf Characters and Seedling Growth of Magnolia officinalis With Different Provenances

不同种源厚朴叶片性状变异及幼苗生长量研究