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The enolate Claisen rearrangement can reduce a chiral carbon, aid-ehyde group that was reduced by reduction was also a potential chiral carbon. So, this reaction can open a new route for preparing chiral compound.
中文意思:
由于酯的烯醇化Claisen重排反应可以产生一个手性碳,而还原产生的醛基也是一个潜在的手性碳,所以此反应可以为进一步合成手性化合物开辟一条新的途径。


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The emulation result shows:this controller has better control result and stupid and excellent. 仿真结果表明该控制器有较好的控制效果和鲁棒性。
The energy budget of a female Yellowed headed Wagtail is ~7 9 kJ, apportioned protein is 0 kJ( 8%~ 0%) and the lipid is 8~ 0 78 kJ ( %~ %). 产卵期 ,雌鸟用于性腺增长和卵形成的能量预算为 ~7 9kJ ,其中用于蛋白质和脂肪的能量分别为 0 kJ和 8~ 0 78kJ,占总能量预算的 8%~ 0 %和 %~ % .
The enforced by France Peugeot Citron P.S. 介绍了法国标致 /雪铁龙P . S .
The engineering bacteria LEY were constructed with the method of genes to transform the spheroplast, use Acinetobacter ealcoaceticus T and Pseudomonas putida -8, Arthobacter sp. # as receptor and donor. 工程菌 LEY是以乙酸钙不动杆菌 T 株 ( Acinetobacter calcoaceticns T )为受体 ,恶臭假单胞菌 - 8株 ( Pseudomonasputida- 8 ) ,节杆菌 #株 ( Arthrobacter sp#)为供体 ,采用多基因转化受体原生质球构建而成。
The engineering geologic conditions in the selected area of constructing LPG underground storage caverns played a decisive role. 在LPG地下洞库的建设中,选区的工程地质条件起决定性作用。
The enolate Claisen rearrangement can reduce a chiral carbon, aid-ehyde group that was reduced by reduction was also a potential chiral carbon. So, this reaction can open a new route for preparing chiral compound. 由于酯的烯醇化Claisen重排反应可以产生一个手性碳,而还原产生的醛基也是一个潜在的手性碳,所以此反应可以为进一步合成手性化合物开辟一条新的途径。
The enrichment ability of scallop according to the sequence Cd>Zn>As>Hg>Cu>Pb≈Cr。 同时分析结果表明,栉孔扇贝对不同的重金属富集特性不同,依次是Cd>Zn>As>Hg>Cu>Pb≈Cr。
The enterprise culture should not be understood as political and ideological work and spiritual civilization construction and the eyewash should not be done. 在企业文化的认识上,不能把企业文化片面地等同于政治思想工作或精神文明建设,也不能仅做表面文章。
The entomophthoralean fungus, Pandora delphacis (Hori) Humber, (Zygomycotina: Entomophthorales) is an insect pathogen specific to homopteran insects such as planthoppers, leafhoppers, and aphids and frequently cause epizootics in insect populations. 飞虱虫疠霉(Pandora delphacis (Hori) Humber)是同翅目昆虫的专性昆虫病原真菌,分类上属于接合菌亚门(Zygomycotina)的虫霉目(Entomophthorales),常引发飞虱、叶蝉的流行病,也侵染蚜虫、沫蝉等寄主。
The environment can be free from pollution due to nontoxicity and innocuousness of the abluent. 清洗剂无毒无害 ,不污染环境 ;
The environment fell into the middle-outer neritic province from the end stage of the late Oligocene to the early period of the Pleistocene in this sea area. The five bioproductivity explosion events(BEE-BEE)had happened during this period. 本区从晚渐新世末期至更新世早期的环境为中-外浅海环境,在此期间,共有五次生物生产力爆炸事件(BEE—BEE)。
 
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