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imines相关的网络例句

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与 imines 相关的网络例句 [注:此内容来源于网络,仅供参考]

Epoxides, episulphides and ethylene imines also polymerize via similar cyclic onium ion mechanisms

环氧化合物,环硫化合物和乙烯亚胺也可以按类似于环氧?

It was found that both the phosphine and the imines likely influence theformation of products.

发现作为催化剂的膦和作为亲偶极体的亚胺都可能改变所形成的产物。

Dioxide quinoxaline formaldehyde semicarbazones and imines were synthesized by the reactions of 1,4-dioxide quinoxaline formaldehyde with aminourea or substituted anilines.

用1,4-二氧喹喔啉甲醛与氨基脲、苯胺、取代苯胺等反应,合成了11种1,4-二氧喹喔啉甲醛-缩氨脲和醛亚胺。

Because of their strong nucleophility of NHCs, the asymmetric Staudinger reaction between ketenes and imines catalyzed by chiral NHC was achieved, gave -lactams with excellent enantioselectivities.

中文摘要我们组利用氮杂环卡宾的亲核性,成功地实现了氮杂环卡宾催化的烯酮与亚胺的Staudinger反应。

In chapter three,we investigated a new Baylis-Hillman-type reaction,organozinc speciesCF_3COOZnEt can react withα,β-acetylenic ketones and N-tosylated imines providing Baylis-Hillman adducts in good yield in the absence of any catalysts.

有机锌试剂CF_3COOZnEt可以与各种类型的α,β-炔酮及亚胺发生偶联反应,高产率的得到β-取代的Morita-Baylis-Hillman反应加合物,这类反应不需要任何的催化剂,产物具有立体单一型,完全是Z式结构。

Treatment of dials with N-tert-butanesulfinamide, all biaryl dials were successfully converted into the corresponding bis-imines which were then treated with samarium diiodide to afford diamine products. The absolute configurations of all the intramolecular coupling products were determined by X-ray crystallography.

轴手性二醛与N-叔丁基亚磺酰胺缩合得到相应的亚胺,其为一对非对映异构体。N-叔丁基亚磺酰亚胺在二碘化钐条件下得到的偶联产物,经X-衍射也确定了其立体构型。

Examples of monomers which have on average not less than 3 cross-linking groups per molecule include for example tri, tetra, penta and hexa functional isocyanates, alcohols, amines, epoxys,acrylates, siloxanes and imines.

其中的单体平均不超过3交叉连接不到每分子团体有例子包括,例如三,四,五溴和六功能异氰酸酯,醇,胺,epoxys,丙烯酸酯,硅氧烷和亚胺。

In this dissertation, electrophilic reactions of Nitrosonium with imines, aza-Diels-Alder reactions of N-arylimines with a variety of electron rich olefinic compounds induced by NO~+, and photoreactions of N-nitrosodiphenylamine with aromatic amines were studied.

本文研究了:(1)NO~+与亚胺双健发生的亲电反应;(2)NO~+引发的芳香亚胺和富电子碳碳双键作为亲二烯体的氮杂Diels-Alder反应,高选择性地得到了一系列四氢喹啉的衍生物;(3)N—亚硝基二苯胺与芳香胺发生光化学反应得到了一系列偶氮苯类化合物。

Recent advances in the application of chiral nitrogen-containing ligands in asymmetric addition reactions to imines with organolithium reagents are reviewed.

综述了近10余年来手性含氮配体在有机锂试剂对亚胺不对称加成反应中应用的研究进展。

Research progresses in the asymmetric addition of organozinc reagent s to imines in the recent decade are reviewed according to the kinds of chiral ligands.

亚胺的催化不对称加成反应是近年来不对称催化反应中的热点研究领域,从手性配体类型的角度总结了近10余年来有机锌试剂在亚胺不对称加成反应中的应用进展。

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