benzene ring n. A hexagonal ring arrangement found in benzene and other aromatic compounds, consisting of six carbon atoms with alternating single and double bonds between them, and with each carbon atom bonded to a hydrogen atom, or to other atoms or groups of atoms in derivatives of benzene...
1-Ethynyl-4-pentylbenzene, with the chemical formula C15H18, has the CAS number 79887-10-8. It appears as a colorless liquid with a faint odor. The basic structure of 1-Ethynyl-4-pentylbenzene consists of a benzene ring with an ethynyl group and a pentyl group attached. This compound ...
Ring Halogenations of Polyalkylbenzenes with N-Halosuccinimide and Acidic Catalystspdoi:10.1055/s-1993-25839Bovonsombat, PakornMcnelis, EdwardSynthesisBovonsombat P, McNelis E (1993) Ring halogenations of polyalkylbenzenes with N-halosuccinimide and acidic catalysts. Synthesis 1993(2):237–241...
Another approach to the development of fluorescentadenine derivativesis to modify position 8 of the adenine ring with an unsaturated group, as in the case of 8-vinyl-adenine.35As shown inFig. 7, modification of position 8 with aromatic groups also makesadeninefluorescent. Compounds38to4336are 8...
On the basis of the above comparison tests (Table1), and given that traditional hydroprocessing with exogenous hydrogen source resulted not only in the unavoidable hydrogenation of the benzene ring to cyclohexane but also in the n-propylbenzene byproduct that could not be further converted into ben...
关键词: oxadiazole derivatives ring closure reactions DOI: 10.1002/chin.200711107 被引量: 41 年份: 2007 收藏 引用 批量引用 报错 分享 全部来源 求助全文 Wiley dx.doi.org ResearchGate deepdyve.com readcube.com 相似文献 参考文献 引证文献N,N,N′,N′-Tetrabromobenzene-1,3-disolfonamide (TBBDS)...
A hydrogen atom liberated as the result of rupture of a C鈥揌 bond under the action of radiation may react in two ways: ( 1 )ion of a hydrogen atom from the aliphatic chain, and ( 2 ) addition to the double bond of the benzene ring with the formation of a free radical of the ...
8.12.9.3.2 Closure of the pyrazine ring Treatment of the salt (171) with the ketene dithioacetal (172) and potassium carbonate in DMSO gave the mesomeric betaine (173) via the corresponding N-allylide, 〈90H(31)977〉. Sign in to download full-size image 8.12.9.4 Imidazo[1,5-b]pyridazi...
Benzofuran is a molecule that combines a benzene ring with one or more connected heterocyclic furan rings.
The invention relates to new N-substituted benzenesulphonamides of general formula <IMAGE> in which N IS 2 OR 3, R1 and R2 are hydrogen atoms, methyl, ethyl groups, or jointly form with the nitrogen a nitrogenized heterocyclic ring having 5 or 6 members, in particular a piperidino, pyrroli...