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- The benzene ring is also seen in other compounds. 苯环在其他化合物中也可以看见。
- Of or relating to the consecutive positions of substituted elements or radicals on a benzene ring. 连位的苯环上不断的替代物或者原子团连位的
- Any of a class of aromatic organic compounds having at least one hydroxyl group attached directly to the benzene ring. 酚,羟基类化合物一种芳香的有机化合物,至少含有一个与苯子不直接相连的羟基组
- A biologically important organic phenol, having two hydroxyl groups attached to the benzene ring. 苯磷二酚生物学上一种重要的有机酚,苯环上有两个羟基群
- A biologically important organic phenol,having two hydroxyl groups attached to the benzene ring. 苯磷二酚生物学上一种重要的有机酚,苯环上有两个羟基群。
- A group of atoms bound in a structure, such as a benzene ring, that is resistant to alteration in chemical reactions. 环(晶)核包围在抗化学反应变化的结构中的一组原子,如苯环
- A strain may be defined as an organic compound containing a benzene ring plus a chromophore and auxochrome group. 染料定义为含有苯环与呈色官能基与辅助成色官能基的化合物。
- Flavonoid One of a common group of plant compounds having the C6-C3-C6 chemical skeleton in which C6 is a benzene ring. 类黄酮:所有化学结构式为C6-C3-C6(其C6为苯环)的一类植物化合物。
- Three such arrangements come to mind: a planar hexagon, similar to the benzene ring, and two solid polyhedra, the trigonal prism and the octahedron. 故而,有三种排列方式:平面六边形,类似苯环;两个立体多面体:三棱柱和八面体
- A benzene ring can also be thought of as a short chain of six such carbon atoms, with alternating bonds, biting its tail to form a closed loop. 苯环可以看成是由六个这种碳原子所组成的短链,它们的单双键交替,并且头尾相连形成一个封闭迴圈。
- The benzene ring and alkene structural group are much more stable than structural group of sulfoacid for the carbonifying process of polystyrene. 在碳化过程中,聚苯乙烯阳离子交换树脂的苯环结构和烯烃基团比磺酸基团稳定。
- A compound containing a benzene ring in which two of the carbon atoms have been replaced by nitrogen atoms,especially any of three isomers having the composition C4H4N2. 二嗪,一种含有一个苯环,其中两个碳原子被氮原子取代,尤其是有这种组成的C4H4N2的三种同分异构体的任一个。
- A compound containing a benzene ring in which two of the carbon atoms have been replaced by nitrogen atoms, especially any of three isomers having the composition C4H4N2. 二嗪一种含有一个苯环,其中两个碳原子被氮原子取代,尤其是有这种组成的C4H4N2的三种同分异构体的任一个
- Methods The structure modifications on benzene ring and the coupling chain of the curcumin were summarized on the basis of published literatures for curcumin. 方法根据关于姜黄素及其衍生物的研究开发现状的多篇相关文献,对姜黄素的苯环和中间连接链的结构改造特点进行整理和归纳。
- In textbooks of organic chemistry.the orientation rule of substituting groups in benzene ring is often explained with electronic effect (inductive effect and conjugative effect). 有机化学教材中通常是从电子效应(诱导和共轭)来解释苯环上取代基的定位规律。
- Tetrabromopxylene diol was prepared from pxylene through bromination of benzene ring, ultraviolet bromination of sidechains, esterification and hydrolysis. 以对二甲苯为原料,经过路易斯酸无水三氯化铝催化的苯环的溴代,侧链光溴代,酯化和水解,合成了四溴对苯二甲醇。
- The aromatic hydrocarbon structures in kerogen carry free electrons stabilised by the reasonating bonds of benzene rings. 油母质中的芳香烃结构含有被苯环共振键稳定的自由电子。
- Recent and new techniques used in anodic oxidation of methyl of benzene rings are also extensively discussed. 著重对甲基的阳极氧化过程中运用的新技术及发展趋势作了评述。
- The molecule carrier is anthraquinone, which consists of three fused benzene rings with one oxygen atom on each side. 分子承运者是蒽醌,包括三个融合的苯环,每一个苯环侧面有一个氧原子。
- The enantioselectivity of N-dodecanoyl-L-proline-3,5-dimethyl-anilide is also good, but the basic line fluctuates strongly due to containing benzene ring in its molecular structure. 虽然用N-十二酰基-L-脯氨酸-3,5-二甲基苯胺作添加剂,手性选择性也较好,但由于含有苯环,紫外吸收增强,基线波动严重。
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