让我们来看一看碳碳双键的情况,例如在乙烷里,我们有个双键。
So let's take a look at what actually happens if we're talking about a carbon-carbon double bond, we're going to have a double bond.
生化实验也证实了消除反应产生的碳碳双键产物和取代反应产生的连接产物。
Consistently, biochemical assays showed that the SpvC-catalyzed reaction can generate both double bond-containing and covalently linked products.
然后经过重排又转变成了一个具有碳碳双键的六员环体系,并在此基础上进一步发生脱氢反应。
Then a hexacyclic-ring system formed as a result of molecular recombination, based on which further dehydrogenation occurred.
结果表明:在此条件下加氢,产物碳碳双键含量减少,其综合性能特别是高温耐氧化性得到了显著提高。
The result shows that under the optimal conditions, the content of double carbon bond in product reduced, and the comprehensive properties, especially, the oxidative resistance improved greatly.
关环转换反应是形成碳碳双键的重要反应之一,即双烯化合物在金属碳烯催化下关环得到环烯类化合物。
Ring closing metathesis (RCM) of dienes to cycloalkene provides an important tool for C-C double bond formation catalyzed by metal carbene.
本文综述了手性膦配体及其碳碳双键的不对称催化氢化反应研究和最新进展,并对手性膦配体的设计做了分析和总结。
The paper reviewed the study on the chiral phosphines in asymmetric catalytic hydrogenation and their nearest development. Thedesign of chiral phosphines were also evaluated and summarized.
两端带有碳碳双键,尺寸与液晶分子相近的刚性小分子单体在线偏振紫外光照射下聚合,形成的聚合物膜能够诱导液晶分子均匀取向。
The monomers with vinyl groups at two ends of the main chain after exposed to linearly polarized ultraviolet (LPUV) light can induce homogeneous alignment of liquid crystal molecules.
是高度共轭的笼状结构的碳素体,分子结构中六边形环间的共价碳碳双键是富电子区,反应性能与烯烃有类似性,主要表现为双键加成。
C_(60) is one kind of fullerene with high conjugated cage-types structure. Its covalence between two hexagons has high reactivity, which behaves as addition reaction of double bond.
实验表明,在样品中加入氢氧化钠,样品中的4-氨基偶氮苯和新鲜配制的连二亚硫酸钠发生反应,使4 -氨基偶氮苯的碳碳双键断裂。
The results showed, in the presence of sodium hydroxide, 4-aminoazobenzene could react with fresh sodium dithionite solution, and broke the carbon - carbon double bond of 4-aminoazobenzene.
“一锅”法的碳-碳双键形成反应。
生物催化的还原反应能使分子内的羰基或碳-碳双键立体选择性的还原,将潜手性底物转化为手性产物,在不对称合成中有着重要的作用。
Biocatalytic reduction of the carbonyl groups or the carbon-carbon double bonds of the compounds has been utilized as a method for transforming the prochiral substrate into chiral product.
若多功能单体分子中含有一定含量的碳—碳双键,则能很好地抑制降解。
And there should a certain amount of double bond of carbon in the multifunctional monomers so as to suppress the degradation of PP.
反式脂肪酸是具有反式构象碳-碳双键的所有非共轭不饱和脂肪酸的总称。
Trans fatty acids are fatty acids (TFAs) containing at least one trans double bond, but only polyunsaturated fatty acids with methylene interrupted double bonds.
本文从碳氮双键的还原过程、腙的异构和希夫碱的还原三个方面概述了碳氮双键的极谱研究现状 。
This paper, according to the process of double-bonded carbonic acid reduction, the isomerism of hydrazone & alkali reduction, depicts the current polarogram research of double-bonded carbonic acid.
本文从碳氮双键的还原过程、腙的异构和希夫碱的还原三个方面概述了碳氮双键的极谱研究现状 。
This paper, according to the process of double-bonded carbonic acid reduction, the isomerism of hydrazone & alkali reduction, depicts the current polarogram research of double-bonded carbonic acid.
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