leaving group

Influence of the Properties of Leaving Group , Non-leaving Group and Intermediate on the Aminolysis Reaction of Substituted Phenyl Benzoates

离去基团、非离去基团及中间体性质对取代苯甲酸苯酯氨解反应的影响

And N-methyl-imidazole being target , we synthesized ionic liquid-acceptors with the easy leaving group p-methyl .

又以N-甲基咪唑为对象，合成了带有对羟基苯甲醇易离去基团的离子液受体。

The traditional synthesis of crown ether was optimized by changing polar and ionic properties of the solvent , activity of leaving group and temperature . The best yield can be over 71 % .

通过改变溶剂的极性、离子性、离去基团的活性及反应温度等方法，对传统的Pedersen冠醚合成法进行了优化，使目标产物的最高产率达到71%以上。

Well , I heard that she 's leaving the group Shalamar ,

（S.T:一个有歌曲、舞蹈的节目）我听说她离开了Shalamar组合，

Virginia sits outside the tunnel , where she moved her belongings in2006 after leaving a group home .

坐在地道出口处的弗吉尼亚。2006年，弗吉尼亚便从一处流浪汉聚集地来到这里生活。

By 1984 , Utah had gone , leaving the group free to pursue other acquisitions in higher-growth areas .

1984年售出犹他国际之后，通用电气得以自由地在增长更快的领域谋求新的并购项目。

Considered nodes joining and leaving the group , group key renewing protocol is proposed , which can guarantee the forward security and backward security of group key .

针对普适环境中节点随时加入和退出群组的特点，设计了组密钥更新协议，保证了组密钥的前向和后向安全性。

Even if Marcos is angry at Lorna for leaving the group , he 'd never desert his child , but needless to say this is going to be a complicated custody agreement .

即使马可斯对洛娜离开群体感到愤怒，但他也不会抛弃他的孩子，不用说这将会有一个复杂的监护权协议。

Frustrated , Ringo approached John and said , " I 'm leaving the group because I 'm not playing well , and I feel unloved and out of it , and you three are really close . " Lennon was flabbergasted .

心灰意冷之后，林戈靠近约翰说：“我离开乐队，因为我演得不好，我感觉不到爱，不在乐队里，你们三个才是真正亲密的，”列侬很惊讶。

Leaving with a group the end of this month .

和这个月最后一队离开。

but , uh , we 're leaving for a group meeting ,

不过我们要去参加互助组的讨论会

Southern countries might restore their own currencies , leaving a northern group of Germany , Austria , Finland , the Netherlands and possibly France in a shrunken eurozone .

至于如何分家则尚未可知，南欧国家或许会恢复本国的货币，留下北方的德国、奥地利、芬兰、荷兰或许还有法国，组成一个缩水版的欧元区；

These products would be aimed largely at customers outside China , leaving the parent group to remain focused on its home country where it has a strong presence in other types of building machines including excavators .

这些产品大多瞄准中国以外的客户，而母公司仍将把主要精力放在中国国内。在中国，在包括挖掘机在内的其它建筑机械领域，三一具备强大的影响力。