查询词典 binaphthyl

Under the selected chromatographic operation conditions, the 2,2'-Dihydroxy-1,1'-binaphthyl, 2-Naphthol and other impurities could be separated efficiently.

在选定的色谱条件下，1，1'-联－2-萘酚和2-萘酚等杂质之间具有较好的分离效果。

The first hyperpolarizabilities of binaphthyl bridged chiral bis-porphyrins depend on the spatial arrangement of the substituents.

一阶超极化率的大小与双卟啉中推／拉电子基团的空间排列方式有关。

Starting from 2-naphthylamine,2,2′-diamino-1,1′-binaphthyl was obtained via oxidation,coupling reaction and rearrangement.

&配体催化合成&是有机化学研究领域中的前沿和热点，它是化学领域的一门交叉学科。

Optically active axially dissymmetric binaphthyl derivatives have been extensively used as excellent chiral ligands in asymmetric catalysis and chiral recognition.

光学活性的联萘衍生物以其独特的立体化学性质作为优异的C2轴手性诱导源，已被广泛地应用到不对称催化反应和手性识别中。

The direct aldol reactions catalyzed by organocatalyst derived from 2-amino-2'-hydroxy-1,1'-binaphthyl were studied.

研究了2-氨基-2'-羟基-1，1'-联萘衍生的有机小分子催化剂催化的直接羟醛缩合反应。

Their specific optical rotation is higher than 1, 1'-binaphthyl monomer in concentrated sulfuric acid, and increased with the excess enantiomer percentage of monomers increased, but the direction of rotation is not same with their monomer.

它们的结晶度较低，在浓硫酸中的旋光活性远大于联萘单体，其旋光值与聚合物手性单元的过量比例成线性关系，但旋光方向却与单体不同。

The cyclopalladated catalyst containing axial chiral binaphthyl backbone has the following structural formula.

该类环钯催化剂含有轴手性联萘骨架，具有如下的结构式。

The geometries of a series of binaphthyl bridged chiral bis-porphyrins were optimized using B3LYP method at 6-31G basis set level.

在6-31G水平上用B3LYP方法对手性联萘桥联双卟啉系列分子进行几何构型优化。

In order to synthesize the functional polyquinolines (such as proton conducting polyquinolines and optically active polyquinolines) and investigate structure-property relationships, polyquinolines and polyanthrazolines containing isomeric pyrrole units or 1, 1'-binaphthyl in main chain were synthesized and their properties were studied.

建立了二乙酰吡咯的合成方法；合成并表征了四种二苯酰基-二氨基单体和五种新型的含吡咯基或联萘基的二乙酰基单体；并对部分合成方法进行了改进，简化了实验步骤，提高了产率。

Up to 95.01% yield of 2-amino-2'-hydroxy-1,1'-binaphthyl was obtained in chlorobenzene using the oxidant with 10% FeCl3 loading on the support containing 5% TiO2 at 60 ℃. The activity of the used oxidant was improved by treatment with H2O2, which provided an effective method to regenerate the solid-oxidant.

结果表明：在60 ℃，氯苯作溶剂的情况下，含TiO25%的载体，负载10% FeCl3时2-氨基-2'-羟基-1，1'-联萘的收率最高达到了95.01%；用过的固体氧化剂经H2O2氧化处理后活性明显恢复，证明此法是一条循环再生的有效途径。

But Severus escaped the hands of those that Julianus had sent to murder him and sent a letter to the praetorian guard, giving them the signal either to desert Julianus or to kill him.

赛维鲁总算逃过了尤利阿努斯派来的杀手，并写了一封信给罗马的禁卫军，向他们发出信号，要么抛弃尤利阿努斯，要么干掉他。他们立即服从了。

This text is in terms of this of " human nature ", it is under the influence of western literature human nature thought to probe into, awakening in human nature of novel works and all sorts of limitations that affectionate The school of Mandarin Duck and butterfly.

本文便是从"人性"这一角度，探讨在西方文学人性思想的影响下，清末民初鸳鸯蝴蝶派的言情、哀情小说作品在人性方面的觉醒与种种局限。