查询词典 reagent

0 G of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

119克环戊溴和19.4克镁在空气中或者四氢呋喃中加入环戊格林尼亚试剂作发生反应。

Ether molecules combine with the various components of a Grignard reagent to form complex etherates.

乙醚分子同格里雅试剂分子相连接形成一个复杂的醚和物。

0 G of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

一百十九点零克的环戊基溴化镁和克一十九点四顷反应乙醚或四氢呋喃给予一个环戊格氏试剂。

Compound 5 reacted with Grignard reagent of 9 followed by cyclozation to afford target molecule 11. All intermediates and target product were confirmed by IR, 1H NMR and HRMS.

化合物5与9的格氏试剂偶联和关环反应完成目标产物3-羟基－10-去甲基－12-甲氧基－13-甲基罗汉松烷(11)的全合成。

The synthesis methods of hexamethyldisilane, such as reductive coupling reaction, Grignard reagent alkylation, electrochemical reduction et al, were recounted in details.

综述了近年来国外关于六甲基二硅烷的合成工艺(还原耦合法、格氏试剂法、电解还原法等)；并就其未来的研究方向提出了建议。

Copper iodide CuI has a apparent inhibition effect on addition rearrange of the Grignard reagent with carbonyl compounds.

为抑制烯丙基格氏试剂与羰基化合物加成反应中的重排反应，进行了碘化亚铜CuI对此类格氏试剂及加成产物组分比例关系的研究，CuI对这类化合物加成反应重排有明显的抑制作用。

The one-carbon unit transfer reaction is carried out by reacting with Grignard reagent, provided new synthetic method for 5 class of 19 kinds of ketone, and the influence factors, for example, the reacting mechanism, the condition, etc.

单、双苯并咪唑盐和单、双Grignard试剂的变换组合实现的系列一碳单元转移反应，为多类型酮化合物提供了开阔的合成视野。

The reaction result showed that the reactivity of Grignard reagent was different in THF and diethyl ether when subjected to substitution reaction, which gave three products with different substitution degree.

研究表明，生成的Grignard试剂在THF和乙醚中的反应性不同，与甲基三硅烷或四乙氧基硅烷发生取代反应时生成不同取代度的产物，控制反应条件可得到以单取代、双取代或三取代硅烷为主的产物。

M Trifluoromethylacetophenone was synthesized by the reaction of acetic anhydride with the Grignard reagent of 3 bromo benzene prepared from trifluoromethylbenzene , in 40% overall yield.

以三氟甲基苯为原料，经过溴化、格氏反应后与乙酸酐反应合成间三氟甲基苯乙酮，总收率40%。

Acyl halides can also be in the carbonyl reaction with the Grignard reagent, sir into ketones, and then generate the tertiary alcohol.

酰卤中的羰基还可以与格式试剂反应，先生成酮，继而生成叔醇。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。