亚胺

Based on this monomer, several novel polyimides bearing side chains composed of cyano-biphenyl mesogenic end groups and hexylene spacer were prepared.

合成了一种含氰基联苯氧基侧链的二元胺单体，然后通过两步法热醯亚胺化工艺制备了新型的含氟基联苯基团侧链的聚醯亚胺。

These salts can beprepared on treatment of phosphinimines with trifluoroaceticanhydride. After addition-elimination, triflromethylated β-enaminoesters and β-iminoesters were synthesized by thereaction of the above salts with organozinc reagents.

通过膦亚胺和三氟乙酸酐反应制备了N-三氟乙酰基氨基膦盐，该膦盐和锌试剂发生加成-消除反应后，合成了含有三氟甲基的β-烯胺酯和β-亚胺酯。

Amino-monomethoxypoly(ethy1ene glycol)(mPEG-NH2) was synthesized based on the principle of Gabriel synthesis.Monomethoxypoly(ethy1ene glycol) tosylate was prepared at first,and then reaction with potassium salt of phthalimide as nucleophile to produce the monomethoxypoly(ethy1ene glycol)phthalimide derivative.

摘 要：首先合成了单甲氧基聚乙二醇对甲苯磺酸酯，然后根据盖布瑞尔合成法原理，以邻苯二甲酰亚胺钾盐为亲核试剂与mPEG-OTs反应，生成单甲氧基聚乙二醇的邻苯二甲酰亚胺衍生物，mPEG-PI与水合肼反应肼解生成伯胺，合成了一端为氨基的单甲氧基聚乙二醇(mPEG-NH2)。

Huapai products:pchlorophenol,ochlorophenol,2,4dichlorophenol,2,6dichlorophenol,2,4,5trichlorophenol,2,4,6trichlorophenol,4chloro2benzyl phenol,pbromophenol,2,4,6tribromophenol,1chloro4(1,1dimethyl ethyl) benzene ether,3bromoanisole,mbromofluorobenzene,2tetra hydrofuran,αbromo4chloro acetophenone,αbromo4methoxy acetophenone,4chloro benzophenone,4chloro2methylaniline,n(2hydroxyethyl)ethane diamine; n(2aminoethyl)ethanolamine,2,3dibromopropionyl chloride,4bromo benzene sulphonyl chloride,terephthaloyl chloride,isophthaloyl chloride,nchlorosuccinimide,nbromosuccinimide,pchloranil;tetrachloro1,4benzoquinone,5chloroisatin.

华派公司产品：对氯苯酚，邻氯苯酚，2，4二氯苯酚，2，6二氯苯酚，2，4，5三氯苯酚，2，4，6三氯苯酚，4氯2苄基苯酚，对溴苯酚，2，4，6三溴苯酚，对氯苯基叔丁基醚，间溴苯甲醚，间溴氟苯，α溴甲基四氢呋喃，α溴代4氯苯乙酮，α溴4甲氧基苯乙酮，4氯二苯甲酮，4氯2甲基苯胺，N(2羟乙基)乙二胺， 2，3二溴丙酰氯，对溴苯磺酰氯，对苯二甲酰氯，间苯二甲酰氯，N氯代丁二酰亚胺，N溴代丁二酰亚胺，四氯苯醌，5氯靛红。

PI-1 and PI-2 polyimide films were prepared from 3,3′,4,4′-benzophenone tetracarboxylic dianhydride and ODA确良by two-step polymerization under the thermal and mixed imidization procedures.

采用两步法首先合成聚酰胺酸，然后经热酰亚胺化和混合酰亚胺化工艺制备了BTDA/ODA型的PI-1 和PI-2两种聚酰亚胺薄膜。

Two kinds of polyimide films were prepared based on the ODA and ODPA in NMP through two-step thermal or chemical imidization process and characterized by the cone and plate viscosimeter, GPC, FTIR, DSC, TGA and strain properties tests.

以4，4'-二胺基二苯醚和3，3'，4，4'-二苯醚四酸二酐为单体，采用两步法，分别经热亚胺化和化学亚胺化过程制备了两种聚酰亚胺薄膜，并对两种薄膜的性能进行了表征。

The purpose of this work is to develop new methods for syntheses of polyimides derived from chlorophthalic anhydrides.

本工作的目的是以氯代苯酐和二胺为原料，制备双氯代酞酰亚胺单体，然后进行聚酰亚胺合成方法的研究，以达到减少合成步骤，降低其生产成本的目的，主要内容如下： 1由双氯代酞酰亚胺与双酚A在不同体系中进行聚合反应，发现双酚是否完全成盐和聚合体系含水量是决定聚合物分子量的关键因素。

Its reaction with ketenes generated in situ from acid chlorides afforded-4--azetidin-2-one, thus provided a 14-member library of-4--azetidin-2-one with yields 76～91% and an excellent stereoselectivity.

我们从PEG支载的苯甲醛出发，经腙的制备及其氯代之后，在三辛胺作用下，由氯代腙原位生成的腈亚胺与亚胺发生[3+2]偶极环加成反应，得到PEG支载四芳基-4，5-二氢-1，2，4-三氮唑衍生物。

Tris-(1-aziridinyl)- phosphine oxide and 2-[bis-(2-chloroethyl)-amino]-tetrahydro-1, 3, 2-oxazaphospholidine-2-oxide(Ⅲ, B-518) possess inhibitory action against a variety of animal tumours and have been used clinically. Recently, bis-(1-aziridinyl)-phosphinyl carbamic acid ethyl ester(Ⅱ, AB-100) was found to possess significant activity with low toxicity on experimental animal tumours.

双(2-氯乙基)氨基磷酰二氯与乙烯亚胺在脱水苯或对氧六环中并在三乙胺的存在下进行缩合，生成N，N-双(2-氯乙基)-N′，N-二乙烯基-磷酰胺；与双巯基或双氨基化合物作用，则生成相应的环状磷酰胺、磷酰胺酯以及磷酰胺硫代酯氮芥类化合物。

Then, it was condensed with-valine methyl ester to form a chiral imine, which was reacted with allyl zinc bromide in the presence of CeCl3·7H2O to afford the corresponding chiral homoallylic amine with high optical activity.

-N-Boc-3-苯基-2-氨基丙醛与-缬氨基酸甲酯缩合生成手性亚胺，在七水合三氯化铈（CeC13·7H2O）催化以及底物的手性诱导作用下，该手性亚胺与烯丙基溴化锌经不对称加成反应合成了高光活性的单烯丙基化手性胺。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。