炔丙基

Two monomers,bispmpargyl ether of bisphenol-Aand 4,4'-biphenyl dibenzyl azide were synthesized and characterized with FT-IR,1H-NMR and elementary analysis.

合成了两种单体双酚A二炔丙基醚与4，4′-联苯二苄叠氮，研究了一种新的低温聚合体系——双酚A二炔丙基醚与4，4′-联苯二苄叠氮在烘箱中的本体聚合行为。

Dipropargylfluorene was prepared by the reaction of fluorene and propargyl bromide with the catalyst of NaOH/PhCH2N+Me3Cl in 85﹪ yield.

芴与炔丙基溴在NaOH/PhCH2N+Me3Cl催化作用下反应生成85﹪的二炔丙基芴。

Chiral centers of C5 and C8 are directly constructed in the key step of the diastereoselective propargylation from D--tartrate. The methylation and subsequent methoxycarbonylation result in desymmetrization of the terminal dialkynes. The α,β-unsaturated δ-lactone is synthesized after partial hydrogenation and lactonization.

由非天然酒石酸出发，利用双向非对映选择性的炔丙基化反应，在一步反应中同时构建C5和C8手性中心；然后通过末端炔基的甲基化、甲酯基化，延长碳链并对分子去对称化；内酯化得到关键中间体α，β-不饱和六元内酯，再经多步反应转化得到8-epi--Boronolide。

Promoted by metal dysprosium, aldehydes and ketones could react smoothly with propargyl bromide to afford the corresponding homopropargylic alcohols in good to excellent yields, and no allenic alcohol s were found.

当用苯基炔丙基溴代替炔丙基溴与醛、酮反应时，主要得到了相应的连二烯醇，而没有发现高快丙醇的存在，由此提出了六元环过渡态的反应机理

Sci.Tech.,Harbin,150080,China） Abstract:Dipropargylfluorene was prepared by the reaction of fluorene and propargyl bromide with the catalyst of NaOH/PhCH2N Me3Cl in 85% yield.

9，9二炔丙基芴的合成和发光性能邱加龙桂太龙许晶王玥摘要：芴与炔丙基溴在NaOH/PhCH2N Me3Cl催化作用下反应天生85%的二炔丙基芴。

The substituents on 2 and 4 position of furan ring were derived from the propargylic part of homopropargylic alcohol, and the substituent on 5 position of furan ring was derived from the

其呋喃环上2号及4号位置的取代基乃源自於高炔丙基醇之炔丙基，5号位置的取代基乃源自於醇之偕位，故藉此方法合成之碘化呋喃化合物具有高度的位向选择性。

The quantitative structure-activity relationships were established based on the 1-octanol/water partition coefficient and an electronic parameters-lowest unoccupied molecular orbit. The result shows that the highest sensitivity is cell density between three end points, and the toxicity of secondary and tertiary propargylic alcohols is correlation to the position of alkynyl and hydrophobicity, respectively.

本次实验结果可发现三个参数中以Final yield的敏感度是最高的，而二级炔丙基醇类之毒性高低是和其炔基接的位置有一定的关联性，三级炔丙基醇类之毒性则与疏水性的高低有关：疏水性越高其毒性越强。

In previous results, Alkyl substituted propargylic dithioacetals treating with butyl lithium then were allowed to react with carbonyl compounds to form homopropargylic alcohol with high yields and highly regioselective.

在本实验室先前的研究中发现，烷基取代炔丙基硫缩酮与正丁基锂进行开环反应后，若是与羰基化合物反应，能够以高产率、具位向选择性的生成高炔丙基醇。

In the presence of palladium catalyst and triphenylphosphine, alkynyl Grignards or alkynyllithiums could successfully couple with alkyl bromides and iodides. Aryl-substituted propargylic dithioacetals could also be obtained by this strategy.

在钯触媒和三苯基磷的存在下，我们可利用炔基格林那试剂或炔基锂和简单的卤烷进行偶合，而这样的反应条件也能应用在苯基取代炔丙基硫缩酮衍生物的合成上。

In the last part we first synthesized the propargylic amines though several methods and then developed a new methodology for the synthesis of -α-chloroalkylidene-β-lactams via the catalysis of PdCl〓 with CuCl〓 and BQ with moderate to good yields and good generality.

论文的第三部分工作是我们首先通过几种方法合成了炔丙基胺化合物，接着对PdCl〓催化的炔丙基胺的羰基插入环化反应进行了研究，以中等收率得到-α-氯代亚烷基-β-内酰胺化合物，反应的普适性良好。

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。