烯烃基
- 与 烯烃基 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the paper, the research evolvement of electrocarboxylation from carbon dioxide with olefin, alkyne, and ketones in near decades was summarized, these reactions were convenient ways to synthesize some valuable pharmaceutical precursor and intermediates in organic synthesis.
文章综述了近几十年来二氧化碳与烯烃化合物、炔烃化合物以及酮类化合物的电羰基化反应的研究进展,这些反应是合成一些有价值的药物前驱体或是有机合成中间体的简便方法。
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When the proportion of the aryl halides was changed,the aromatic products with different number substitutes could be obtained.
通过研究我们发现,活泼酰基与烯丙基在偶联反应中活性相当,可得到不同成环方式的产物,且当改变卤代物比例时,将得到不同数量取代芳烃的产物。
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We gained the ethynylferrocene in high yield by the the reaction of triphenylphosphine with chloroform or bromoform in the presence of KOBu~t to give witting reagent, which reacted with formylferrocene and then followed by n-butyllithium dehydrohalogenation.
在本论文的第二部分,我们用三苯基磷与溴仿或氯仿在叔丁醇钾作用下,制得三苯基磷甲叉烯,然后与二茂铁甲醛反应,得到二氯取代烯烃,在正丁基锂作用下得到二茂铁乙炔。
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It provides a route tothe compounds which contains three functional groups, two carbon-nitrogentriple bonds and one carbon-carbon double bond. In water, metallic indiumpromotes carbon-sulfur bond coupling reaction of aromatic sulfonyl chloride withsuitable organic halides to afford sulfones. In the last chapter, metallic tin mediated allylation of aldimines with allylbromide was revealed.
第三章,我们研究了在水相介质中金属铟促进的烯丙基溴对1,1-二氰基-2-芳基乙烯的Michael加成反应,生成一个含碳碳双键和二个碳氮叁键的三官能团化合物,另外,金属铟在水介质中还可以促进芳基磺酰氯与卤代烃发生碳硫键的偶联,生成砜。
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The present invention relates to a thermoplastic interpolymer product comprising an alpha -olefin interpolymerized with at least one vinyl or vinylidene aromatic monomer and/or at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene aromatic monomer and, in at least one aspect, is characterized as having substantially synergistic thermal properties.
本发明涉及一种包含与至少一种乙烯基或亚乙烯基的芳族单体和/或至少一种受阻的脂族或环脂族的乙烯基或亚乙烯基芳族单体共聚的α-烯烃热塑性共聚体产物,及至少一方面,其特征为具有实质协同热性质。
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The catalytic system composed of NHPI and transition metal ion can catalyze effectively ethane into acetic acid,cyclane into dicarboxylic acid,toluene into benzoic acid,alkene into epoxide,alkyne into acetylenic ketone,and amide into imide;NHPI used alone can catalyze adamantane to be carbonylated,hydrogen peroxide prepared by oxidization alcohol;NHPI combined with as...
NHPI与过渡金属离子组成的催化体系能高效地催化乙烷氧化为乙酸、环烷烃氧化为二元羧酸、甲苯氧化为苯甲酸、烯烃氧化为环氧化物、炔烃氧化为炔酮、酰胺氧化为酰亚胺;NHPI单独使用能催化金刚烷发生氧化羰基化反应、催化氧化醇制取过氧化氢;NHPI与有机助催化剂如偶氮二异丁腈、溴化季铵盐、蒽醌和醇等也能催化分子氧氧化反应。
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Also useful are oil-soluble copper dithiocarbamates of the general formula Rc RdzCu, where z is 1 or 2, and Rc and Rd are the same or different hydrocarbyl radicals containing from 1 to 18, and preferably 2 to 12, carbon atoms, and including radical s such, for example, as alkyl, alkenyl, aryl, aralkyl, alkaryl and cycloaliphatic radicals.
通用化学式为RcRdzCu的油溶性二硫代氨基甲酸铜,也非常有用。式中,z为1或2,Rc和Rd是含有1到18个碳原子(最好含有2-12个碳原子)的相同或不同的烃基根,并且包括烷基、链烯基、芳基、芳烷基、烷芳基和环脂基等。
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Based on studies of RCM reaction of 50 and CM reaction ofacrylonitrile with 1-octene or 1-decene catalyzed by pyridine derivative-coordinatedruthenium benzylidene complexes, it can be concluded that ruthenium benzylidene complexwith the more labile dissociating ligand exhibits the higher initial activity and better catalyticperformance.
吡啶衍生物配位的钌卡宾配合物催化含氰基烯烃50闭环交互置换反应和丙烯腈与1-辛烯、1-癸烯交叉交互置换反应表明,催化剂中吡啶衍生物配体越易解离,其初活性越高,催化活性越好。
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HMT general synthesis is aluminum chloride as a catalyst, isopropyl - toluene right with the new hexene, or 2 January 2 3 1 2 1-butene six-olefins reaction.
HMT的合成一般是以三氯化铝为催化剂,由对异丙基甲苯与新己烯、或2,3一二甲基一2一丁烯等六碳烯烃反应生成。
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Olefine, electrophilic or nucleophilic substitution of arenes, nucleophilic addition of carbonyl compounds stereochemistry in elimination reaction of double bond forming and the choosing of oxidants and reducing agents in redox system.
在化学反应方面重点是烯烃的亲电加成,芳香烃的亲电,亲核取代,羰基化合物的亲核加成,消除反应的双键定位和立体化学,氧化,还原反应中氧化还原剂的选择。
- 推荐网络例句
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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。
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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。
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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。