酰亚胺

In this thesis, we developed chiral proton N-O type ligands and employed them in the enantioselective addition of diethylzinc to N-diphenylphosphinoyl imines. The relationship between the structure of the ligands and the enantioselectivity was systematically studied. Furthermore, enantioselective butylation of N-diphenylphosphinoyl imines withBu〓Zn and enantioselective diphenylzinc addition to imine were also examined.

本文致力于亚胺的不对称催化有机锌试剂加成反应的研究：以手性质子型N-O配体为促进剂，对N-二苯基次膦酰亚胺进行不对称乙基锌加成反应而展开研究工作，系统地考查了手性配体的结构对反应的影响；另外，对N-二苯基次膦酰亚胺的不对称催化丁基锌加成进行了研究，并首次对亚胺的不对称苯基锌加成反应进行了初步探索。

The resting cell of Alcaligenes eutrophus 112R 4 can catalyze the hydrolysis of hydantoin, dihydropyrimidine and succinimide effectively, but not function to 5-monosubstituted hydantoins or 5,5'-disubstituted hydantoins.

该菌能水解海因、二氢尿嘧啶和琥珀酰亚胺，且对琥珀酰亚胺活力最高，但不水解 5 单取代海因和5 ，5' 双取代海因，因而被确定为含有酰亚胺酶。

The bismaleimide has the defects such as high melting point, bad resolvability, high curing temperature, great brittleness because of the structure, and these restrict its application and development.

双马来酰亚胺由于结构的特点，使得双马来酰亚胺树脂具有熔点高、溶解性差、成型温度高、固化物脆性大等缺点，这些均限制了双马来酰亚胺树脂的应用与发展。

This thesis includes five parts as follows.1. The backgrounds and some relative concepts of this work are briefly introduced. The photochemistry of benzamides and compounds with thiourea functional group is also concisely reviewed.2. Total of fourteen benzamides with different substituted groups have been synthesized and structurally characterized. Better photoreaction time for that kind of compounds at given concentrations is confirmed by tracking its'UV spectrum and GC chromatogram. A representative dibenzophenone photoproduct has been determined by X-ray crystallography. The mechanisms of photoreaction of benzamide have been proposed.3. Total of seven N-chloro(phenylmethylenebenzenamines with different substituted groups and sixty-one thiourea derivatives have been synthesized and structurally characterized.

论文的主要内容如下：1、简要介绍本论文工作的研究背景，并对苯甲酰胺和具有硫脲官能团类化合物的光化学研究进展进行简要的总结。2、合成与表征了14个具有不同取代基的苯甲酰胺类化合物，利用紫外光谱和气相色谱确定了此类化合物较佳光照时间，测定了一个具有代表性光解产物的单晶结构，提出了苯甲酰胺类化合物的光反应机理。3、合成与表征了7个带有不同取代基的氯代苯甲酰亚胺中间体及61个硫脲衍生物，测定了两个具有代表性化合物的单晶结构。

The major contents in this thesis are described as follows:(1) Seven new thiol fluorescence reagents containing 2-phenylbenzoxazole (or 2-phenylbenzothiazole) derivatives or benzanthrone as fluorphore and iodinacetylamine or maleimide as reaction groups have been synthesized.

本论文的研究工作主要分为以下几个方面：(1)以碘乙酰胺或马来酰亚胺为反应基团和以2-芳基苯并噁唑类化合物或苯并蒽酮为荧光团，首次合成了七种新的碘乙酰胺类和马来酰亚胺类巯基荧光试剂。

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。

Gabriel reaction was adopted to synthesis 2-(0ctahydro-1-azocinyl)ethylamine, N-(β-Heptamethyleniminoethy1)phthalimide was prepared by treating Heptamethylenimine with N -(β-bromoethy1) phthalimide. N -(β-bromoethy1) phthalimide was easily prepared from phthalic anhydride in two steps.

我们采用Gabriel伯胺合成法制备2-环庚亚胺基乙胺，从邻苯二甲酸酐经过两步反应很容易地得到N-邻苯二甲酰亚胺，然后与环庚亚胺发生亲核取代反应，产物再水解制得伯胺2-环庚亚胺基乙胺。

A convenient method to synthesize three kinds of novel 2-(2-hydroxyphenyl) benzimidazole in order to improve the solubilities of the fluorophores with substituent of carboxyl, ester and double-bond which are aimed for determining the sulphydryl group was reported.

合成了N-{3-(2-苯并咪唑基)-4-羟基苯基}马来酰亚胺酸， N-{3-(2-苯并咪唑基)-4-乙酸酯基苯基}和马来酰亚胺N-{3-(2-苯并咪唑基)-4-羟基苯基}马来酰亚胺，在基本荧光发射团上分别引入了羧酸基；酯基；双键活性基团。

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。

A series of polymers containing 1,8-naphthalimide moieties in the side chains have been prepared via RAFT technique. Firstly, five styrene and two methyl acrylate based 1,8-naphthalimide monomers were synthesized and characterized. Then, carbazyl group terminated polystyrene was used as macromolecular RAFT agent.

我们合成了5种苯乙烯类和2种甲基丙烯酸酯类萘酰亚胺单体，以一种含末端带咔唑结构的聚苯乙烯为大分子RAFT试剂，考察了所得单体的RAFT聚合，发现苯乙烯类1，8-萘酰亚胺单体可以聚合，但是聚合度不高，甲基丙烯酸酯类1，8-萘酰亚胺单体RAFT聚合不可控。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。