英语人>网络例句>亚胺 相关的搜索结果
网络例句

亚胺

与 亚胺 相关的网络例句 [注:此内容来源于网络,仅供参考]

We put it to one pot synthesis imines from nitroaromatics for the first time.

我们首次将Ni/SiO_2催化剂用于一锅法合成亚胺的研究。

We found the optimal reaction conditions,explored different catalyst system;in the best conditions,we have synthesis a large number of imines with vary complex substituents in the optimal conditions.

我们找到了反应的最佳条件,探讨了不同的催化体系;在最佳条件下,高产率的合成了大量含复杂取代基的亚胺

This review covers the recent advances on the asymmetric addition reactions of alkylzinc reagents with imines .

综述了烷基锌与亚胺不对称加成反应的最新进展。

Isoquinuclidines are structural elements of numerous alkaloids and can be prepared from the reaction of imines with cyclohexenone.

isoquinuclidines结构性因素众多生物碱可制备烯合成环己烯酮与亚胺反应。

In order to surmount the problem of slow reaction rate of the Baylis-Hillman reaction, we employed N-tosylated imines as the electronphile.

因为醛和环状烯酮的反应很难进行,我们便用活性更高的亲电试剂磺酰亚胺代替醛进行Baylis-Hillman反应,取得了很好的结果,反应速度得到了很大的提高。

It seemed promising that Ni/SiO_2 can be an effective bifunctional catalyst for one pot synthesis imines from nitroaromatics.

我们(来源:A7bB76C论文网www.abclunwen.com)首次将Ni/SiO_2催化剂用于一锅法合成亚胺的研究。

Chaper 4: Aldehydes, ketones and imines were readily reduced by sodium borohydride with the participation of a small amount of water in good to excellent yields using PEG400 as catalyst at the absence of organic solvents.

第四章:在无溶剂条件和PEG400 催化下,在少量水的参与下用硼氢化钠较容易的还原醛、酮、和亚胺,获得较高的收率,具有应用于大规模生产的开发前景。

The novel synthesis of the 2-hydroxyl α-arylglycines was realized through the Lewis acids promoted Friedel-Crafts reaction of phenols and N-tosyl imino ester in mild reaction conditions.

其中在路易酸TiCl〓促进下,酚类化合物和亚胺酯发生的傅克反应,可较高产率、较高区域选择性的得到2-羟基α-芳香甘氨酸衍生物。

Kosmos offers a place to sit and relax with comfort guaranteed by the "dry feel" polyurethane foam cushions with white leatherette upholstery.

smos为人们提供了一个能够就座并放松的区域。&干性&聚亚胺酯泡沫制成的坐垫配以人造革饰面营造出无比的舒适感。

Because a part of hydroxyl group in methyl cellulose were substituted by trimethylsilyl group , the product could be dissolved in amounts of common organic solvents, such as chloroform, xylene and so on.

通过甲基纤维素与六甲基二硅亚胺的反应,成功地实现了对水溶性物质甲基纤维素醚三甲基硅化的改性;红外光谱验证了反应的发生,核磁共振氢谱确定了三甲基硅甲基纤维素的取代度;纤维素醚上的部分羟基被三甲基硅化后取得了在普通溶剂中的良好的溶解性,且随着取代度的增加,在非极性溶剂中的溶解性逐渐变好;通过热失重实验,对其热稳定性进行了测试。

第47/73页 首页 < ... 43 44 45 46 47 48 49 50 51 ... > 尾页
推荐网络例句

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。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。