查询词典 addition-compound

In addition, the effect of different olefins on alkylation reaction was also investigated.

另外，还考察了烯烃碳链长度对苯烷基化反应的影响。

According to the performance and technology, many of them, such as Energy Partition plant invented and equipped by SPA and Alkyne Removement by Hydrogen Addition Plant which was the joint invention of both SPA and East China University of Science and Technology, etc.

其中，我校自行研发的"能源隔断装置"和与华东理工大学联合研发的"加氢脱炔装置"等的性能和技术含量，在国内职业院校中已处于领先地位。

After hydrogenation of the double bond and the addition of alkyne to a carbonyl we introduced the N-hydroxy group by SN2 reaction.

不对称氢化和炔负离子对羰基的立体选择性加成构建了两个新的手性中心，之后用羟胺衍生物对羟基的SN2取代反应引入了羟胺片断。

The computa-tion indicated that the stable silicyl alkene is produced by the addition reaction of silicon alkyne and hydro-gen.

计算表明，硅炔与氢分子加成反应可生成稳定的甲硅烷基硅烯。

In order to void sulphur corrosion of steel surface layer when it is heated,in addition to more requirement of material surface quality,this paper gives some measure that alkyne gas of producer is given a desulfidation process by controlling the atmosphere in the producer and that use the alkyne of low sulphur and without smoke as row material.

为避免加热时对钢表层的硫腐蚀，除对材料表面质量提出了进一步的要求外，还提出了采用可控气氛，对发生炉煤气进行脱硫处理及使用低硫无烟煤作发生炉煤气的原料等解决措施。

SAA ligand Lh could induce asymmetric addition of terminal alkyne to aldehydes without using air-sensitive Ti4and expensive Zn2.with good result of high yield (up to 99%) and good enantioselectivities (up to 84%ee).

将SAA配体Lh应用于在无Ti_4和Zn_2的条件下促进端基炔对醛的不对称加成反应中，反应的收率普遍较高，最高达99%，对映体选择性高达84%ee。

The new agency said that in addition to the 25 deaths there were also 13 people injured, accounting for all 38 aboard.

新华社说，除了25人死亡外，还有13人受伤了，总共有38人。

They could be displayed all over the house to show off their new addition.

它们可以显示所有的房子炫耀自己新增加的。

In addition, the news that still has a bitterness making a person -- the 8 Ed Turney of AMD company that combine one of author greatly, as a result of cerebral cancer, died recently, all the year round is 79 years old.

此外，还有一个令人悲痛的消息——AMD公司8大联合创始人之一的Ed Turney，由于脑癌，于近日去世，终年79岁。

In addition, enterprise user is red fox most hard all-pervading user group.

此外，企业用户是火狐最难以普及的用户群。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。