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For most of the enones and allylic alcohols, the reaction could be completed within several hours with good yields.

反应无需有机溶剂,对于大部分的烯酮和烯丙基醇反应可以在数小时内完成,产率良好。

Moreover, the polymeric arsine palladium(0) complex is an efficient catalyst for the carbonyl allylation of aldehydes and the coupling reaction of aryl halides with terminal alkynes or Grignard reagent.

该聚合物负载的胂钯(0)配合物还是醛的羰基烯丙基化及芳基卤化物与端炔、Grignard试剂的交叉偶联反应的有效催化剂。

Three kinds of novel N-heterocyclic carbene allyl palladium complexes (Catalyst 1, 2 and 3) were synthesized. Norbornene polymerizations were carried out using three catalysts activated with methylaluminoxane in toluene.

研究了以3种N-杂环卡宾螯合烯丙基钯配合物1、2和3为催化剂,甲苯为溶剂,甲基铝氧烷为助催化剂催化降冰片烯的聚合。

The effect of crosslinking agent dicumyl peroxide and co- crosslinking agent triallyl isocyanurate on the cure and tensile properties of liquid ethylene propylene diene monomer was investigated.

研究了由过氧化二异丙苯和助交联剂三烯丙基异氰脲酸酯组成的过氧化物体系对液体三元乙丙橡胶的交联及产物拉伸性能的影响。

This thesis reported the research of carbonyl allylation and benzylation carded out in aqueous media.

该论文主要研究了纯水作为反应介质时,羰基化合物的烯丙基化和苄基化反应。

Herein, we describe a novel catalysis of palladium complex, which mediates tandem allylation of o-phenylenediamines with 2-ene-1,4-diols using water as solvent.

在本实验中,我们探讨邻-苯二胺类和2—烯—1,4—二醇类在水中进行连续两次烯丙基化的一个新的钯催化系统。

Further studies on the sulfinatodehalogenation of I〓 with olefinsindicated that either symmetrically and unsymmetrically disubstituted adducts could beobtained depending on the amount of 〓 and temperature. Non-fluorinated compounds (such as dichloro-, chloroacetates, chloroform) andCFCs e.g.

由于此反应能被对二硝基苯和对苯二酚(HQ阻止,光照反应加速,且与二烯丙基醚反应时得到的产物为四氢呋喃衍生物,所以我们推断反应历程是一个自由基反应过程。

As superplasticizer , a series of comb-shaped copolymers of polycarboxylic acid were synthesized by polyoxyethylene allyl methyl diether, maleic anhydride, and styrene with different initiators,and esterified with PEO-n.

以聚氧乙烯甲基烯丙基二醚、顺丁烯二酸酐、苯乙烯等为共聚单体,采用不同引发剂,合成了一系列聚羧酸型梳状共聚物超分散剂,并以PEO n单酯化得酯化产物,研究了共聚物的结构、组成、添加量等对水泥粒子分散性能的影响。

UV-curable hyperbranched poly was synthesized via organosilicon polymer bearing silicon hydride end groups and vinyltriallylsilane at the presence of Pt/C catalyst.

通过含硅氢键的超支化聚合物和乙烯基三烯丙基硅烷在铂催化剂作用下反应制备了可紫外光固化的超支化聚硅氧基硅烷。

A series of β-vinyl alcohols were synthesized using methyl alkyl ketones or methyl aryl ketones and allyl chloride as starting materials by Grignard reagent method.

烯丙基氯和甲基酮为原料,通过格氏试剂法合成了-β烯醇化合物,并探讨了各种因素对收率的影响,获得了控制反应过程的最佳参数。

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推荐网络例句

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。

This is not paper type of business,it's people business,with such huge money involved.

这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。