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Metal aryls, n.o.s.

芳基金属,泛指名称

METAL ARYLS, WATER

卤化芳基金属,遇水反应,未另作规定的

Study on Glycosidic Derivatives of 1, 5-Diaryl-3-Hydroxypyrazoles

1,5-二芳基-3-羟基吡唑葡萄糖衍生物的合成研究

We investigated fluoroalkylation of 5,10,15-triarylporphyrins with fluoroalkyl halides by sulfinatodehalogenation system.

本章研究了在亚磺化脱卤反应条件下5,10,15-三芳基卟啉的氟烷基化反应,并对反应条件进行了优化。

In the second section, we described CuI/L-proline-promoted cross-coupling reaction of aryl iodides with activated methylene c-ompounds.

本论文分为两部分,第一部分为手性胍离子液体的制备及性质表征;第二部分为CuI/L-脯氨酸催化的芳基碘苯和活泼亚甲基化合物交叉偶联反应的研究。

Its reaction with ketenes generated in situ from acid chlorides afforded-4--azetidin-2-one, thus provided a 14-member library of-4--azetidin-2-one with yields 76~91% and an excellent stereoselectivity.

我们从PEG支载的苯甲醛出发,经腙的制备及其氯代之后,在三辛胺作用下,由氯代腙原位生成的腈亚胺与亚胺发生[3+2]偶极环加成反应,得到PEG支载四芳基-4,5-二氢-1,2,4-三氮唑衍生物。

Very popular among loopers the world over.

蝴蝶 波尔,这款底板是我自己的选择,其中使用了芳基碳素层来平衡速度与吃球的时间,在全世界的弧圈球选手中非常流行,德国的顶级选手蒂姆波尔选用的底板。

The result obtained was very promising. Meanwhile, [3+2]-cycloaddition of aziridines with nitriles was discovered by using Sc3 as catalyst.

与此同时,我们还发现了Sc3可以很好地催化腈与2-芳基氮杂环丙烷的[3+2]环加成反应,得到了二氢咪唑产物,产率中等到优秀。

Monophenyltin trichloride reacts withdicarbonyl dicyclopentadienyl titanium immediately at room temperature, but no ti-tanium-tin complex produced, and the products were diphenyltin dichloride〓 and tin or stannous Chloride. When diaryltin dihalides were used, only the chlorides and bromides reacted with 〓form the complexes containing titaninm-tin bond,〓. but the corresponding iodide complex was not found. This reaction is Sensitive totemperature,when the temperature is belw 10℃,the reaction hardly takes place,but as the temperature is above 25℃,more 〓 will be found and the reactionbecome more complex.

Ph-SnC〓室温下即可与Cp〓迅速反应,但不生成含钛一锡链的化合物,而是生成Ph〓和Sn或Sn〓二芳基二卤化锡化物中,只有氯化物和溴化物才能和〓反应生成含钛〓锡键的化合物〓相应的碘化物则不行,而且反应对温度比较敏感,低于10℃,反应几乎不能进行,而高于25〓,则会生成更多的〓,在回流条件下得不到含钛〓锡键的化合物,只能得到分解产物,〓和Sn或〓。

However, by the time the students' reports were due, the former topic had been discussed in the classroom, and students under-stood that the chlorination was an example of an electrophilic aromatic substitution.

然而,到了学生的报告该交的时候,前面的主题已经在课堂上讨论过了,学生已经理解了氯化是亲电芳基取代的一个例子。

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推荐网络例句

However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。