合成

Then two series of yellow sulfonamide dyes are synthesized by the reaction of the sulfonyl chlorides and ammonia or different fatty amines in the presence of acid-binding reagent. The structures of sulfonyl chloride intermediates and sulfonamide dyes are confirmed by FTIR,~1H NMR and mass spectrometry.

将所合成的磺酰氯化合物在缚酸剂作用下分别与含有不同碳数的饱和脂肪胺发生缩合反应，合成了两个系列黄色偶氮型磺酰胺染料，并利用红外光谱、核磁共振氢谱和质谱表征了磺酰氯中间体和磺酰胺染料的分子结构。

In this paper, the effects of different catalyst combinations on the synthesis of α-chloro-dodecanoic acid were investigated, in which a series of acyl chlorides such as 4-toluene sulfonyl chloride, dodecanoyl chloride, chlorosulphonic acid , etc.

本文从烯酮式反应机理出发，以α-氯代十二酸的合成为模型，对酰氯化试剂(对甲苯磺酰氯、十二酰氯、氯磺酸等)和质子酸催化剂(如H型离子交换树脂、氯磺酸、对甲苯磺酸、醋酸等)进行组合和选择，并与文献报道的特殊添加剂乙酐比较，研究不同催化体系在酸催化合成α-氯代脂肪酸时的催化作用。

In modem organic synthesis, it is an important method to synthesize optical pure compou...

在当代的有机合成中，采用适当的手性源来合成光学纯的化合物是一种重要的方法。

This paper presents a method to synthesize fiber models, which are then used to validate fiber tracking algorithm.

提出一种纤维模型的数学合成方法，并利用合成模型对纤维跟踪方法进行了验证。

You can assign each channel to a specific synthesizer or synthesize voice.

您可以指定每个通道特定合成或合成的声音。

The interaction between tRNA and aminoacyl-tRNA synthetase play an important role in life process.

tRNA与氨基酰tRNA合成酶在蛋白质生物合成及其它生命过程中起重要作用。

Objective: To investigate catalytic mechanism of the cobalamin-independent methionine synthetase.

目的：探讨钴胺素非依赖蛋氨酸合成酶催化合成蛋氨酸的反应机制。

ABSTRACT Bacillus subtilis tryptophanyl-tRNA synthetase was expressed and purified by the aid of the high-level expr...

利用枯草杆菌色氨酰tRNA合成酶的高表达质粒pKSW1表达和纯化了枯草杆菌色氨酰tRNA合成酶。

Aminoacyl-tRNA synthetase is a class of ancient proteins, catalyzing the first reaction of protein biosynthesis.

氨基酰-tRNA合成酶是一类古老的蛋白质，催化蛋白质生物合成中的第一步反应。

With the adoption of advanced Speech Systemization Technology and minimum resource consuming, it can provide high-quality systemization effect.

它采用多种业内领先的语音合成技术，历经多次优化和改进，能在极小的尺寸和资源消耗下，提供高质量的语音合成。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失