铑催化不对称1,4-共轭加成反应是一种非常有效的碳—碳键形成方法。
In this paper, the recent progress in rhodium-catalyzed asymmetric 1,4-conjugate addition reactions is reviewed.
在反应堆物理计算中,扰动计算需要中子本征值方程的共轭方程。
Perturbation calculation in reactor physics requires the neutron adjoint eigenvalue equation.
本论文是关于共轭烯炔酮与硝酮化合物反应生成多取代的呋喃化合物的研究,主要从三个方面进行了研究。
In this thesis, we have focused on the synthesis of highly substituted furan by the cycloaddition reaction of conjugated enynones with nitrones.
在共轭爆轰模型中,阵面激发化学反应释放出的能量,使得爆轰产物粒子朝不同的方向运动。
In conjugate detonation model, chemical reaction is initiated by the shock wave front, and the released energy makes the particles of explosion products move in different directions.
讨论了卟吩环系的共轭体系和芳香性质,以及与化学反应活性的联系。
The relationship between conjugated system and chemical reaction of chlorophyll derivative was discussed.
探讨了反应时间、加碱量等对葵花籽油制备共轭亚油酸共轭化转化率的影响。
The reactive mechanism of conjugation catalyzed by alkali and the affecting factors such as time and amount of alkali were discussed.
当两者可生成共轭体系时,应具有共轭二烯烃的反应特性。
When they both can produce conjugative effect, they have the reaction characteristic of conjugated diene.
关键反应为底物控制的不对称杂原子共轭加成反应。
The key step was a substrate controlled asymmetric heteroatom conjugated addition.
与此相关,认为IP由这种反应中得出的一对共轭色八重态胶团组成。
We think the IP is composed from the conjugated pair of such glue.
采用KOH为催化剂,正丁醇为溶剂,碱蓬籽油通过碱性异构化反应制备共轭亚油酸(CLA)。
The conjugated linoleic acids (CLA) were prepared by alkali isomerization with KOH as catalyst, butyl alcohol as solvent and suaeda salsa seed oil as raw material.
当出现大量的未饱和共轭结构,它们进一步反应,形成交联结构,产生水不溶性碳基材料。
The branching reactions only occur after the appearance of the multiple unsaturations, forming cross-linking structures and producing water insoluble materials.
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.
较严重的INO患者中观察到共轭性有所好转,可能是适应性反应的结果,例如对聚散度的补充作用以助注视漂移。
Improved conjugacy was observed in the more severe INOs, and may be due to adaptive mechanisms, such as recruitment of vergence to aid gaze shifts.
较严重的INO患者中观察到共轭性有所好转,可能是适应性反应的结果,例如对聚散度的补充作用以助注视漂移。
Improved conjugacy was observed in the more severe INOs, and may be due to adaptive mechanisms, such as recruitment of vergence to aid gaze shifts.
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