双烯

The catalyst was applied to hydrogenateα-octene in normal temperature and pressure, the conversion ofα-octene was 98.6%, and the yield of octane was 63.1% by the bimetallic catalyst.

CTS-ACRPd用于常温常压下α-辛烯的催化氢化，并在催化氢化过程中添加Ni~(2+)，Ni~(2+)-pd双金属催化剂催化α-辛烯的加氢反应150 min时α-辛烯的转化率为98.6%，正辛烷产率63.1%。

LIN Hailin,CUI Yingde,DU Lin,CHEN JianpingInstitute of Applied Chemistry,Zhongkai University of Agriculture and TechnologySuper water absorbent resins P,SA/NaAA,SA/NaAA/PVA and SA/NaAA/AM were synthesized from sodium alginate,acrylic acid,polyvinyl alcoholand acrylamide,with N,N–methylenebisacrylamide as crosslinking agent,(NH4)2S2O8 - NaHSO3 as initiator,by means of aqueous solution polymerization.

以醚化海藻酸钠、聚乙烯醇、丙烯酰胺、丙烯酸为单体，N， N–亚甲基双丙烯酰胺为交联剂，过硫酸铵-亚硫酸氢钠为引发剂，采用水溶液法制备聚丙烯酸钠p吸水树脂和海藻酸钠/丙烯酸钠、海藻酸钠/丙烯酸钠/聚乙烯醇（SA/NaAA/PVA）及海藻酸钠/丙烯酸钠/丙烯酰胺吸水性复合树脂。

Two special structural features of the sulfonium salt were proved to stabilize its corresponding ylide and depress the 2,3-sigma rearrangement. One is that there is a trimethylsilyl in the end of the allylic double band. This silicon atom can stabilize a α-carbon anion and the corresponding ylide. Another is that there is hydroxy group in the beta-position of sulfonium atom. The oxygen of this hydroxy group may stabilize the sulfonium cation.

为了稳定生成的烯丙基硫叶立德，并抑制它的2， 3-sigma 重排反应，在硫叶立德结构上做了两方面的考虑：一是在烯丙基双键的未端引入硅基，利用硅原子对 a -碳负离子的稳定作用来稳定烯丙基硫叶立德；二是在硫原子的 b -位引入羟基，利用羟基氧对硫正离子的作用来稳定硫叶立德。

Homogeneous catalytic oxidations of organic substrates such as alkane and alkene catalyzed by m-oxo-bismetalloporphyrins and flexible alkoxyl oxygen linked-bismetalloporphyrins were introduced,and the catalytic mechanism of these two bismetalloporphyrins,along with the possible synergetic catalysis mechanism of binuclear central metal were discussed.

主要介绍了μ-氧代双核金属卟啉和以柔韧烷氧链相连的双核金属卟啉作为仿酶催化剂在均相催化烷烃、烯烃等有机底物氧化方面的研究进展，并对这两类双核金属卟啉的催化机理、金属双核的协同催化作用机理作了论述，最后展望了双核金属卟啉仿酶催化剂的研究前景。

Three new ferrocenylmethyl-substituted indenes and cyclopentadienes were synthesized by the addition of hydrogen anion and carbon anion to fulvene and benzofulvene respectively, moreover, their structures were characterized by NMR and MS.

本文以二茂铁基富烯和二茂铁基苯并富烯为前体，通过负氢和负碳对双键的加成，合成了3个新型的二茂铁基甲基取代的茚及环戊二烯，并对其结构进行了核磁及质谱表征。

The preparation method of cyclopentadiene from bicyclopentadiene with liquid phase thermal decomposition method is studied.

研究了采用液相热分解法由双环戊二烯制备环戊二烯的实验条件。该法操作简单，环戊二烯纯度达95%，收率可达85

The preparation method of cyclopentadiene from bicyclopentadiene with liquid phase thermal decomposition method is studied.

研究了采用液相热分解法由双环戊二烯制取环戊二烯的方法。该法操作简单，连续化。环戊二烯纯度达98％－99％，收率85

It is seen that oxygen group function of additives is very remarkably in tribological characteristics, that is EP property of dihydroxy docosanoic acid without active element is very near to that of SO with active element sulfur.

双羟基廿二酸的极压性与不含氧基团的硫化烯烃十分接近，以液体石蜡为基础油，最大无卡咬负荷P〓值，前者为539N，后者为588N，再者相差49N，可以看出，氧基团的作用是十分显著的，即无活性元素的双羟基廿二酸的极压性可以十分接近于含活性元素的抗磨极压剂硫化烯烃。

From comparative research of synchronous and asynchronous reaction of dehydrogenation and cracking of dipentene,it is shown that farraginous extent of by-products from synchronous reaction is relatively high.

双戊烯脱氢裂解的同步反应和异步反应对比研究显示，双戊烯脱氢裂解的同步反应产物比较混杂，反应产物中甲苯的相对含量仅为24。

The electron impact mass spectra of the chemical products modified by 2-amino-2-methylpropanol of the fatty acids in sunflower oil were analyzed; the allocation rule for the carbon double bonds in olefinic acids was discussed and the location of the carbon double bonds of the fatty acids in sunflower oil was confirmed.

解析了葵子油脂肪酸2-氨基－2-甲基－丙醇化学修饰产物的EI质谱图，讨论了烯酸中碳碳双键的定位规则，确定了葵子油脂肪酸中碳碳双键的位置鉴定出葵子油6种脂肪酸，不饱和脂肪酸相对含量为89.41%，其中人体必需脂肪酸9，12-十八碳二烯酸含量占65.30%。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。