环烯

The present invention overcomes the shortcomings of the prior art; a main active ingredient is biphenyl cyclooctene lignin which is mainly allotype Kadsura peltigera; the main active ingredient is used as an index ingredient of the quality control of the compound Caulis Spatholobi granules with measurement of HPLC determination method.

本发明对现有技术存在的缺陷进行改革，以异型南五味子丁素为主的联苯环辛烯类木脂素成分为主要活性成分，将其作为复方鸡血藤制剂质量控制的指标成分，采用HPLC含量测定方法进行测定。

The catalytic effect of basic lithium phosphate on the preparation of allyl alcohol by isomerization of propylene oxide was studied in this dissertation.

本论文主要研究了碱性磷酸锂在环氧丙烷异构化制烯丙醇反应中的催化作用。

The isomerization reaction of propylene oxide to produce allyl alcohol catalyzed by basic lithium phosphate was studied.

研究了环氧丙烷在碱性磷酸锂催化作用下异构化生成烯丙醇反应过程，考察催化剂的制备条件，异构化温度对催化性能的影响，以及催化反应机理和动力学特性。

The catalytic properties of Ti-MWW and the reaction conditions in epoxidation of allyl alcohol to glycidol have been studied. It was found that Ti-MWW-PI synthesized under dynamic crystallization conditions has more effective catalytic performance.

对Ti-MWW 催化烯丙醇的环氧化性能和反应条件进行了研究，发现动态法合成的Ti-MWW-PI 有更好的催化性能。

It is possible to achieve the conversion of allyl chloride and selectivity for epichiorohydrin as high as 99% on Ti-MWW.

在Ti-MWW催化剂上烯丙基氯的转化率和环氧氯丙烷的选择性都能达到99%以上。

We have demonstrated the epoxidation of allyl chloride can be catalyzed by 1-3 in mild conditions.

本文还系统研究了温和条件下1一3分别催化氯丙烯环氧化反应。

Aim: To observe the changes of the expression of NSE, COX-2 in cerebral tissue in rats withgas toxicosis of acute Anchovy degeneration, and to discuss its molecular mechanism.

目的：观察鱼腐败气体中毒后大鼠脑组织神经元特异性烯醇化酶、环氧合酶(COX-2)表达的变化，探讨中毒的分子机制。

Three chiral phosphorus ligands were prepared using anisole as the startingat material.Their applications in the asymmetric hydroformylation and asymmetric conjug ed addition of diethylzinc to enones were investigated.

以苯甲醚为原料，合成了三种新的手性含磷配体，考察了三种配体在不对称氢甲酰化反应和ZnEt2对环己烯酮的不对称共轭加成反应中的应用。

THE FIRST TOTAL SYNTHESIS OF TAXAMAIRIN B Taxamairin B, representive of rare naturally-occuring rearrang-ed 9(10→20)-abeo-8, 11, 13-triene diterpenoids, has been firstsynthesized by a eleven-step route in an overall yield of 8.19%,starting from commercially available catechol and 1,3-cyclohexan-dione. The improved Friedel-Crafts annulation, thermodynamicallycontrolled-geminal pairing methylation, the selective oxidation ofallyl group and the selective reduction of the less-hindrancecarbon-carbon double bond are the key steps.

二。美丽红豆杉素B的全合成研究 1，美丽红豆杉素B的首次全合成以价廉，易得的邻苯二酚和1，3-环己二酮为原料，经过改良的Friedel-Crafts烷基化反应，热力学控制的α，β-不饱和酮结构的α一位双烷基化，烯丙位的选择性氧化，以及选择性还原位阻较小的碳碳双键等十一步反应，以8.19％的总收率首次完成了美丽红豆杉素B的全合成。

In this thesis, an integrated process of epoxidation of propylene catalyzed by TS-1 and production of hydrogen peroxide by anthraquinone route was studied.

本文对TS-1催化丙烯环氧化与蒽醌法生产H〓O〓的过程集成进行了研究。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。