The Study of Three-membered Cycloaddition to [60] Fullerene and Functions of Their Derivatives

[60]富勒烯三元环化反应及其衍生物功能研究

It was discovered in 1825 by Michael Faraday. The chemical formula is C6H6; August Kekule von Stradonitz in 1865 was the first to propose the correct structure, a six-membered ring of carbon atoms, each with one hydrogen atom bonded to it.

1825年由法拉第发现。化学式是C6H6。1865年凯库勒首先提出苯的正确结构,是由六个碳原子组成的环,每个碳原子结合着一个氢原子。

Synthetic Studies of Sarsolilide A – Construction of the 14-Membered Cembranoid Skeleton

Sarsolilide A的合成研究-十四元碳环骨架的构建

A six-membered heterocyclic compound,such as pyridine,that contains one or more atoms of nitrogen with a ring structure resembling that of benzene.

吖?,连氮由六种元素构成的杂环化合物,如氮苯(吡啶),它由一个或更多的氮原子构成,呈环状结构,类似苯的结构

Azole:a class of organic compounds having a five-membered heterocyclic ring with two double bonds.

氮杂茂:一种由五种杂环元素,两组粘合剂组成的有机化合物。

Theoretical Study on the Reactions of Two-membered Si-O Rings with CF(subscript n)(n=1~3)Radicals

二元硅氧环与CF(下标 n)(n=1~3)自由基反应的理论研究

A Novel 8-Membered Macrolide Produced by a Marine-Derived Actinomycete Streptomyces sp. V5

海洋放线菌Streptomyces sp. V5产生的一个新的八元环内酯

Theoretical Studies of Second-Order Nonlinear Optical Properties of Benzo Five-Membered Heterocyclic Squaraine Derivatives

含苯并五元环方酸衍生物的二阶非线性光学性质的理论研究

A five-membered heterocyclic ring compound,C4H5N,having an odor similar to chloroform.It is the parent compound of hemoglobin,chlorophyll,and many other complex,biologically active substances.

叽咯一种五倍杂环混合物,C4H5N,气味与三氯甲烷相似,是血红蛋白,叶绿素和其他多种复杂的生物性活跃的物质的亲体混合物

Achievements on the Application of Hydrazine and Related Compounds for the Synthesis of Five-Membered Azole Heterocycles

肼类衍生物在五元唑类杂环合成中的应用进展

Quinone: Any member of a class of cyclic organic compounds comprising a six-membered unsaturated ring (see saturation)to which two oxygen atoms are bonded as carbonyl groups (-C=O; see functional group).

醌:在六元不饱和环中,含有两个紧邻的,或被乙烯基(-CH=CH-)撑隔开的羰基(＞C=O)的环状有机化合物的统称。

Synthesis of N-Heterocyclic Six-membered Ligand (S)-TIAMPP and Its Application in Asymmetric Catalytic Hydrogenation

六元N-杂环配体TIAMPP的合成及其在不对称催化加氢中的应用

DFT Studies on the Tetrazine Substituted by Six-membered C-N Heterocyclic Derivatives

六元氮杂环取代四嗪化合物的密度泛函理论研究

Progress on Copolymerization of Six-Membered Cyclic Carbonates DTC or TMC with ε-Caprolactong

六元环碳酸酯TMC或DTC与己内酯开环共聚合研究进展

Those with six-membered heterocyclic rings include pyridine, pyridoxine (vitamin B6; see vitamin B complex), vitamin E, quinine, and the pyran nucleus, which is found in sugars and the anthocyanin pigments. Nicotine and morphine have both five-and six-membered heterocyclic rings; some antibiotics (e.g., penicillin)have two different heteroatoms in their rings.

六种成分的杂环化合物则有啶、哆醇(维生素B6)、维生素E、尼古丁、奎宁、吗啡和喃核,后者见于糖和花青色素。

Hydrothermal Synthesis of Polyoxovanadium Borate Material with eighteen-membered Ring Exhibiting Electrochemical Behavior

十八元环多钒硼酸盐的水热合成及其氧化还原性质研究

Effects of 12-membered -ring Erythromycin Derivative on the Proliferation and Cell Cycling of T Lymphocyte

十二元环红霉素衍生物对T淋巴细胞增殖和细胞周期的影响

Effects of 14-membered Macrolides on the Formation of Pseudomonas aeruginosa Biofilms and Synergism between Macrolide and Ciprofloxacin

十四元环大环内酯类对细菌生物被膜形成的影响及对环丙沙星的增效作用

They suggested that radicals with a double bond 13 to the carbon bearing the peroxy groups (which can only arise from acids containing more than two double bonds)cyclize to form peroxides with five-membered rings.

他们认为连接过氧基的碳原子有一个双键的游离基(只有多于两个双键的酸可形成)环化形成五元环的过氧化物。

A Practical and Efficient Synthesis of Five-Membered Azasugar Derivatives

五元氮杂糖衍生物的实用有效合成方法

Compounds having five-membered heterocyclic rings include chlorophyll, hemoglobin, indigo, tryptophan, and certain polymers.

五种成分的杂环化合物有叶绿素、血红蛋白、靛蓝、色氨酸和特定的聚合物。

Synthesis, Structure and Characterization of a Novel Six-membered Diazacyclic Compound

一个新的二氮六元杂环化合物的合成、结构及表征

Therefore, it is the reducing end and will be in equilibrium with alpha and beta six-membered ring forms, as described earlier for monosaccharides.

因此如前面单糖部分所述,它是还原性末端。会形成六元环形式的平衡。

After King James I died at the tail end of March during a storm that battered the Scottish coast, a contem-porary writer mourned that this would be"long after re-membered as the storm of the Borrowed Days. "

英国国王詹姆斯一世死于3月末,那时一场风暴袭击了苏格兰沿海。当时的一位作家悲叹地说,“今后,这将作为‘借日’的风暴,久久地留在人们记忆中。”

Special methods for four-membered carbocyclic rings are given in Chapter 32

制取四碳环化合物的特殊方法是在第三十二章中阐述的。

3, 4-Thiadiazoles, which contain N, S atoms of five-membered heterocycles, have important chemical and biological values.

3,4-噻二唑类化合物是含有N、S原子的五元杂环化合物，具有重要的化学和生物应用价值。

Sulfonamide-substituted fused 5-membered ring compounds, their use as medicament, and pharmaceutical preparation comprising them.

磺酰胺取代的稠合5-元环化合物，其作为药物的应用，以及包含它们的药物组合物。

You want to be membered for the country, where with your own vote and your borough at your back, you can command anything.

我知道你想做你们区里的国会代表，这样你自己有选举权，又有区里的人给你撑腰，还有什么事不成的。

six-membered ring

六员环

six-membered ring

六元环

five-membered ring

五员环

five-membered ring

五元环

four-membered ring

四元环

nine membered ring

九节环

four membered ring

四节环

seven membered ring

七节环

three-membered ring

三员环

three-membered ring

三元环

two-membered culture

二元培养

twelve membered ring

十二节环

nineteen membered ring

十九元环

fourteen membered ring

十四节环

nineteen membered ring

十九节环

fused six-membered rings

稠合六员环

lactone ring five membered

五元内酯环

ten membered ring;ten ring

十节环

12-membered ring macrolides

十二元环大环内酯类

16-membered ring macrolides

十六元环大环内酯类