双烯合成

Recently, we have detailed a new series of furan-containing teraryl cyclophene derivatives 40a-f and 67. And two keys to syntheses were one-pot furan annulation and the McMurry reaction.

过去我们已成功地利用呋喃成环反应，与McMurry反应合成到一系列的含呋喃之[n.2]环芃烯40a-f与环芃双烯67。

We synthesized the dienophile 62 from L-malic acid and then heated together with diene 73 afforded the cycloaddition product.

我们由L-苹果酸出发合成了亲双烯体62，并实现了底物诱导的Diels-Alder反应。

The polymer carriers,the immobilization of rare earth compounds,the properties of polymer-supported rare earth metal complex es and their catalytic characteristics in the polymerization of diene was reviewed with 25 references.

对聚合物载体的合成、稀土金属化合物的固定和聚合物载体－稀土金属络合物的性质及其催化双烯烃聚合的特征进行了论述。

Temperature-sensitive hydrogels P(NIPA-co-DiAB) with aromatic group as hydrophobe was were prepared by free radical micellar crosslinking copolymerization with N-isopropyl acrylamide, N,N-dially benzylamine as comonomers, N,N-methylene-bis-acrylamide as crosslinker, sodium dodecyl sulfate as surfactant and ammonium persulfatetetramethylethylenediamine as initiator system.

以N-异丙基丙烯酰胺、N，N-双烯丙基苄胺为共聚单体、N，N-亚甲基双丙烯酰胺为交联剂、十二烷基硫酸钠为表面活性剂、过硫酸铵-四甲基乙二胺为氧化还原引发体系，采用自由胶束交联共聚法合成了疏水基团为芳香基的疏水改性温敏性智能水凝胶P(NIPA-co-DiAB)。

The synthesis of divinyl liquid crystalline monomer 4-undecenyloyloxybenzoyl-4'-allyloxybenzoyl-p-benzenediol bisate and network polymers was described. The chemical structures of the synthesized monomer and network polymers were confirmed by FT-IR spectrum.

以双烯类液晶单体4-十一烯酰氧基苯甲酸-4'-烯丙氧基苯甲酸对苯二酚双酯为交联剂，通过与聚矽氧烷接枝反应，合成了系列网络聚合物P1~P5。

The thesis consists of two main sections. The synthesis of 1,3,4-thiadiazoles,triazolotriazines and dioxapyrrolinopyrazoles containing chiral pyrazolyl moietyfrom D-glucose is described in the first part and the section one is about theDiels-Alder reactions between dienophile enaminones and diene 1,2,4-triazines,which provides a new methodology to construct the pyridine compounds. A total of37 new compounds were synthesized.

本论文包含两部分内容，一是以D-葡萄糖为原料合成含手性吡唑基的1，3，4-噁二唑、三唑并三嗪及二氧代吡咯啉并吡唑类化合物；二是将烯胺酮作为亲双烯体，与双烯体1，2，4-三嗪类化合物发生Diels-Alder反应，发现了一令人意外的构建吡啶类化合物的新方法。

The catalytic performance of PhTMG was evaluated in the reaction for synthesis of diethylene glycol bis via carbon dioxide route and the highest yield of ADC was 95.3%.

考察了PhTMG对以二甘醇、氯丙烯和CO2为原料合成二甘醇双烯丙基碳酸酯反应的催化性能，ADC的最高收率为95.3%。

A novel chiral diallylic diamine has been synthesized through double addition of allyl zinc bromide to chiral imines in this contribution.

通过烯丙基溴化锌对手性亚胺的两次不对称加成，合成了光活性的双烯丙基化的新型手性二胺。

Synthesis of tricyclopentadiene Two methods of polymerization were analyzed in the synthesis of TCPD: thermal polymerization of DCPD, Diels-Alder reaction of DCPD and cyclopentadiene.

三环戊二烯的合成采用两种方式对TCPD的合成进行了研究：DCPD直接热聚法、DCPD与环戊二烯双烯加成法。

This dissertation is concerned with the approaches to a new high density liquid fuel , tetrahydrotricyclopentadiene, which can be synthesized with dicyclopentadiene as raw materials by three steps: Diels-Alder reaction, separation and hydrogenation.

本文以双环戊二烯为原料，通过双烯加成、分离、加氢反应得到目的产物——新型高密度液体燃料四氢三环戊二烯，主要研究内容包括： 1。三环戊二烯的合成采用两种方式对TCPD的合成进行了研究：DCPD直接热聚法、DCPD与环戊二烯双烯加成法。

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。